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Chiara FIORONI

Department of Chemical and Geological Sciences

Stefano, Conti; Chiara, Fioroni; Daniela, Fontana ( 2017 ) - Correlating shelf carbonate evolutive phases with fluid expulsion episodes in the foredeep (Miocene, northern Apennines, Italy) - MARINE AND PETROLEUM GEOLOGY - n. volume 79(2017) - pp. da 351 a 359 ISSN: 0264-8172 [Articolo in rivista (262) - Articolo su rivista]
Abstract

In the Miocene of the northern Apennines of Italy, evolutionary phases of shallow-water carbonates in wedge-top basins are coeval with methane-rich fluid expulsion episodes in the inner foredeep. We identified four main correlative events, primarily controlled by synsedimentary tectonics, sediment input and climate cooling: 1) a Burdigalian tectonic phase determined the onset of shelfal sedimentation in wedge-top areas and is correlated with an important episode of fluid expulsion in marly sediments of the inner foredeep (Croce di Moggiona seep-carbonates); 2) the decrease of shelfal carbonate production and the increase of detrital input in the Early Langhian correspond with a second important episode of seepcarbonate precipitation in the inner foredeep (Castagno d'Andrea); 3) the demise of the carbonate shelf and the coeval expulsion of methane-rich fluids in the inner foredeep (Vicchio and M. Citerna seepcarbonates) at the Langhian/Serravallian boundary approximate the Mi3b cooling event. The lower temperatures, associated with increased siliciclastic weathering, led to the crisis of shallow-water carbonate production whereas the pressure drop due to the eustatic fall may have triggered the gas-charged fluid expulsion; 4) the tectonic-related uplift of frontal sectors of the wedge-top basin led to the wide erosion of the Burdigalian-Langhian carbonates and caused the precipitation of authigenic seepcarbonates (Deruta seep) both in the slope and the adjacent foredeep.

Argentino, Claudio; Johnson, Joel; Conti, Stefano; Fioroni, Chiara; Fontana, Daniela ( 2017 ) - MIOCENE SEDIMENTARY INSTABILITIES ASSOCIATED WITH METHANE DERIVED AUTHIGENIC CARBONATES: A NEW CASE STUDY FROM THE NORTHERN APENNINES (PALAZZUOLO OUTCROPS, ITALY) - 33rd INTERNATIONAL MEETING OF SEDIMENTOLOGY - pp. da 48 a 48 ISSN: - [Abstract in Atti di convegno (274) - Abstract in Atti di Convegno]
Abstract

Northern Apennines (Italy) host several outcrops of methane derived seep carbonates often associated with sedimentary instabilities such as intraformational slumps, extraformational slides and diapiric processes. Despite the vast body of literature on seep-deposits from the Monferrato to the Umbro-Tuscan sectors of the mountain chain, only a few studies focus on the interplay between paleomethane seepage and sedimentary instabilities (Conti and Fontana, 2002) because of the lack of good exposures. In this study we investigate an outcrop located in the Mugello area of the Tuscan Apennines (Prati Piani di Palazzuolo) characterized by the co-occurrence of methane derived authigenic carbonates, chemosynthetic fauna and slump-like structures. The examined outcrop consists of several carbonate blocks with max length of 3.5 m enclosed in a 100 m thick pelitic interval, interpreted as sedimentation above a structural high in the inner foredeep at the front of the Middle Miocene accretionary wedge. The blocks are mainly located at the base of the pelitic interval and have the same strike as the enclosing sediments. At various levels, pelitic sediments show soft sediment deformation structures (folds, slumps). Within the slumps, we sampled some concretions (silty-carbonate in composition). The δ13C value in the carbonates ranges between -18.2‰ and -33.22‰, confirming they are methane derived (AOM-related in origin). Pelites surrounding the carbonate blocks (in situ or transported for a short distance. Isotopic δ18O values are comprised between -4.31‰ and 0.87‰. The concretions are slightly depleted in 13C (-5.47‰; -10.95‰). Preliminary data suggest the presence of a seepage system active before the onset of the instability and able to sustain chemosynthetic communities at the seafloor. The interstitial overpressures might have reduced the shear strength of the fine-grained sediments and constituted an important preconditioning factor for diapiric or mass-transport structures. However, this conclusion is still speculative and needs further investigation.

Grillenzoni,Claudia; Monegatti, Paola; Turco, Elena; Conti, Stefano; Fioroni, Chiara; Fontana, Daniela; Salocchi, Aura Cecilia ( 2017 ) - Paleoenvironmental evolution in a high-stressed cold-seep system (Vicchio Marls, Miocene, northern Apennines, Italy) - PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY - n. volume 487 - pp. da 37 a 50 ISSN: 0031-0182 [Articolo in rivista (262) - Articolo su rivista]
Abstract

Excellent exposures of Miocene seep-carbonates enclosed in marine marly sediments (Vicchio outcrops in the northern Apennines, Italy) offer the opportunity to highlight the evolution of a fossil seep ecosystem and the response of benthic communities to high-stressed environmental conditions. For this purpose, seep-related facies and molluscs within carbonate bodies have been studied, coupled with benthic foraminiferal assemblages and carbon and oxygen isotopes in the enclosing marls. The integrated planktonic foraminiferal and calcareous nannofossil biostratigraphy has allowed us to constrain the seepage within well-calibrated bioevents and to stress the relationships with paleoclimatic and paleoceanographic variations during the middle Miocene in the Mediterranean area. Our biostratigraphic data indicate that the onset of the seepage approximates the Mi3b cooling event (13.82 Ma) and the seepage system lasts for 400 kyr. The evolution of the Vicchio cold-seep system passes through four phases: (1) The onset of the seepage, characterized by a pervasive flow of methane-rich fluids, is inferred by δ13C depletion of marly sediments and by prevailing benthic foraminifera indicative of suboxic conditions at the sea-floor. (2) The methane flow becomes focused causing the precipitation of wide pinnacle-like carbonate bodies which contain giants lucinids. Enclosing marls indicate well-oxygenated conditions, possibly enhanced by paleoceanographic variations connected to the Mi3b cooling event. (3) The appearance of the vesicomyid Christineconcha cf. C. regab and the absence of lucinids in seep-carbonates suggest stable methane-rich fluid emissions; higher flow rates locally favoured the flourishment of bacterial mats. Benthic foraminifera show abundance peaks of organic matter depending taxa. (4) The reduced intensity of methane-rich fluid flows favours the precipitation of stratiform carbonate bodies along strike; the macrofauna is characterized by the presence of both Vesicomyidae and giant lucinids. Foraminiferal assemblages in the enclosing marls indicate the restoration of well-oxygenated conditions.

Argentino, Claudio; Johnson, Joel; Conti, Stefano; Fioroni,Chiara; Fontana, Daniela ( 2017 ) - RECONSTRUCTING SEEPAGE DYNAMICS OF A MIOCENE SYSTEM THROUGH SEDIMENTOLOGICAL AND GEOCHEMICAL CHARACTERIZATION OF AUTHIGENIC CARBONATES AND HOST SEDIMENTS (CORELLA, NORTHERN APENNINES, ITALY) - 33rd INTERNATIONAL MEETING OF SEDIMENTOLOGY - pp. da 47 a 47 ISSN: - [Abstract in Atti di convegno (274) - Abstract in Atti di Convegno]
Abstract

New data from facies, stable isotopes (C and O) and CHN analyses on seep-impacted sediments and authigenic carbonates provided insights into dynamics and geochemical background conditions at a Miocene seepage system (Corella outcrops, northern Apennines, Italy). The examined outcrops comprise 4 lenticular carbonate bodies with maximum length of 200 m and thickness up to 12 m. These carbonates strike parallel to the bedding of the enclosing sediments and show lateral pinch out terminations. Chemosynthetic fauna (mainly Lucinids and Vesycomids) are very common and forms local concentrations of disarticulated or articulated shells; veins and conduits crosscut the carbonate bodies. Microfacies show mottled micrite including clotted textures related to bacterial activity and framboids of pyrite (rosette-like features observed at SEM). δ13C values of the carbonates (micrites and sparry cement filling veins) range between -42.32‰ to -26.63‰ and are indicative of AOM. The δ18O range between -5.67‰ to 1.13‰ (average -0.96‰) and is close to the Miocene seawater signature and therefore considered unaffected by significative diagenetic alteration. The host sediments at the top of the carbonates body is depleted in 13C compared to normal marine carbonates and range between -8.40‰ to -4.75‰ and δ18O is comprised between -3.50‰ and 1.68‰. CHN analyses on the enclosing sediments revealed low TOC values in the range 0.21-0.72% with an average of 0.37%, similar to other Miocene foredeep successions of the northern Apennines. The atomic C/N ratio ranges from 8.93 to 14.05 (avg. 10.84) suggesting minor admixture of land-derived and marine organic carbon. We suggest, based on field data, geotectonic setting, and geochemical analysis, that a blind fault, rooted in the underlyingTertiary turbidites, acted as a pathway for deep methane-rich fluids. Advective fluid flow resulted in a shallow, near seafloor sulfate-methane transition zone (SMTZ), resulting in the anaerobic oxidation of methane and the precipitation of massive authigenic carbonate. The presence and preservation of chemosynthetic fauna throughout the authigenic carbonate body indicates much of the advective fluid flow breached the seafloor, resulting in methane seepage that helped sustain these chemosynthetic organisms

Argentino, Claudio; Reghizzi, Matteo; Conti, Stefano; Fioroni, Chiara; Fontana, Daniela; Salocchi, Aura Cecilia ( 2017 ) - STRONTIUM ISOTOPE STRATIGRAPHY AS A CONTRIBUTION FOR DATING MIOCENE SHELF CARBONATES (S. MARINO FM., NORTHERN APENNINES) - RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA - n. volume 123 - pp. da 39 a 50 ISSN: 2039-4942 [Articolo in rivista (262) - Articolo su rivista]
Abstract

This paper provides new data on strontium isotope stratigraphy applied to the Miocene heterozoan shelfal carbonates of the S. Marino Fm. (Marecchia Valley, northern Apennines). Sr isotopic analyses were carried out on oyster shells, bryozoans and bulk-rocks from the lower-middle carbonate portion of the section. In the upper part of the succession that shows evidence of detrital influx, 87Sr/86Sr analyses were performed on foraminifera tests, separating planktonic and benthic forms. Results were compared with calcareous nannofossil biostratigraphic data from the same levels, in order to test the reliability of Sr dating in mixed carbonate-siliciclastic sediments. Mean ages obtained from oysters range between 16.9 Ma and 16.3 Ma. Very similar results are obtained using bryozoans (16.5 Ma to 16.1 Ma) and bulk-rocks (16.8 Ma to 16.2 Ma). These results allow to better constrain the age of the massive carbonate shelf, referable to the upper Burdigalian. In the upper carbonate-siliciclastic portion of the shelf, numerical ages obtained from planktonic and benthic foraminifera are in good agreement with nannofossil biozones (mean ages respectively around 15.3 Ma and 14.5 Ma) although they display wide confidence intervals. These wide age uncertainties depend on the slow rate of change of marine 87Sr/86Sr through time that characterizes the interval between ~15 and ~13.5 Ma.

M. Y. Kaya, G. Dupont-Nivet, J.-N. Proust, L. Bougeois, N. Meijer, J. Frieling, C. Fioroni, M. Stoica , P. Roperch, M. Mamtimin, J. Aminov ( 2017 ) - The Cretaceous – Paleogene paleogeography of Central Asia recorded in depositional environments of the Proto-Paratethys Sea in the Tarim Basin (Western China) - Geophysical Research Abstracts - n. volume 19 [Abstract in Atti di convegno (274) - Abstract in Atti di Convegno]
Abstract

The Proto-Paratethys, a shallow epicontinental sea, extended from Cretaceous to Paleogene times across Eurasia from the Mediterranean Tethys to the Tarim Basin in western China. Transgressive and regressive episodes of the Proto-Paratethys Sea have been previously recognized but their timing, extent and depositional environments remain poorly constrained especially for the Cretaceous and early Paleogene. This hampers understanding of their driving mechanisms (geodynamic and/or eustatic) and paleoclimatic consequences on regional aridification and monsoons. As part of the ERC “MAGIC” project, we report an integrated sedimentologic and stratigraphic analysis of the Proto-Paratethys from its initial Cretaceous onset to the final Paleogene retreat from multiple investigated sections in the western border of Tarim Basin. Facies associations include field observations and microfacies analyses from carbonate samples. New bio- and magneto-stratigraphic results from key intervals are also provided to testify the previously constructed regional stratigraphic framework. The previously controversial number of marine incursions in the Tarim Basin is resolved to 6 (3 Cretaceous and 3 Paleogene) also recognized in the neighboring Tajik and Turan Basins to the west and the present-day Alai Valley. The eastward extent of these marine incursions varied through time with a maximum extent during late Paleocene - early Eocene. The first marine incursion is a Cenomanian transgression recorded in the marls and calcareous mudstones of the Kukebai Formation. The next two are Coniacian and Campanian transgressions recognized in the carbonate units of the Yigeziya Formation. The first Paleogene incursion is characterized by thick evaporites of the Paleocene Aertashi Formation overlain by the marine shales of the Lower Qimugen Formation. The latter represents the maximum extent and the deepest environments of the Proto-Paratethys. The marine Kalatar limestones and silty shales of the Wulagen Formation are associated with the penultimate transgression whereas the silty shales of the Bashibulake Formation were laid down during the last smaller marine incursion. Generally, transgressive intervals are composed of restricted marine bay environments, shoal & oyster-rich bioherms giving rise to upper offshore to shoreface transition silty shales. The regressive intervals are composed of intertidal flats, supratidal sabkhas and salinas, fluvial, playa and lake environments of alluvial plain. The temporal and spatial extent of the transgressive and regressive intervals enable to discriminate the major drivers of marine fluctuations with their potential consequences on Asian aridification and monsoons.

Conti, Stefano; Fioroni, Chiara; Fontana, Daniela; Grillenzoni, Claudia ( 2016 ) - Depositional history of the Epiligurian wedge-top basin in the Val Marecchia area (northern Apennines, Italy): a revision of the Burdigalian-Tortonian succession - ITALIAN JOURNAL OF GEOSCIENCES - n. volume 135(2) - pp. da 324 a 335 ISSN: 2038-1727 [Articolo in rivista (262) - Articolo su rivista]
Abstract

The Burdigalian-Tortonian Epiligurian succession in the Val Marecchia area comprehends different lithostratigraphic units deposited in a wedge-top basin during the northeastern migration of the thrust belt. The succession includes shallow-water carbonates passing to mixed carbonatesiliciclastic and to fine-grained pelitic sediments, capped by fluvio-deltaic coarse-grained deposits. Detailed field work and stratigraphy has allowed to characterize depositional units and unconformities and to delineate the sedimentary and tectonic evolution of the basin. Tectonics exerted a primary control at different stages. During the Burdigalian, a general uplift of the area allowed the onset of shelfal carbonate sedimentation on underlying Ligurian and Epiligurian deepwater sediments. At the Serravallian the sedimentation was influenced by the thrust reactivations which caused a marked asymmetry in the basin geometry and fill. The subsidence increase in the rear part of the basin determined the deposition of a thick succession of relatively deep fine-grained sediments (up to 800 m water-depth) (Serravallian, MNN6a through MNN6b subzones based on nannofossil biostratigraphy) and fossiliferous clays (lower Tortonian, biozones MNN8b-MNN9). Conversely, uplift is activated in the frontal part of the basin, causing the partial erosion of the Burdigalian–Langhian shallow-water carbonates. A relevant amount of this carbonate detritus is delivered to the foredeep, supplying the Marnoso-arenacea Fm. A general uplift of the area in the late Tortonian leads to the deposition of fluvio-deltaic conglomerates supplied by emerged rear sectors of the basin.

Castaldini, Doriano; Fioroni, Chiara; Soldati, Mauro ( 2016 ) - I vulcani di fango più spettacolari d’Italia: visita guidata alle Salse di Nirano (Appennino Modenese); The most spectacular mud volcanoes in Italy: guided tour to the “Salse di Nirano” (Modena Apennine) - MEMORIE DESCRITTIVE DELLA CARTA GEOLOGICA D'ITALIA - n. volume 102 (2014) - pp. da 7 a 16 ISSN: 0536-0242 [Articolo in rivista (262) - Articolo su rivista]
Abstract

The natural reserve of Salse di Nirano is an “integrated area” located in a hilly area of the Modena Apennine margin. The area is characterized by cold emissions of mud due to the ascent to the surface of salty and muddy waters mixed with methane and fluid hydrocarbons. Such emissions give rise to characteristic mud ejection structures. The shape of the ejection is related to the density of the mud and may result in cones if the mud is very dense or in levelpool if it is fluid. The “salse” are located in a sub-circular depression caused by a gravitational collapse related to the mud ejected. The protected area has been declared a “Site of Community Importance” and has had the recognition of “Geosite” for the protection of the cultural heritage of our country. The Reserve welcomes over 70.000 visitors a year who can visit the area by means of equipped paths provided with explanatory panels and a tourist-environmental map of the area, that combines the main geological and geomorphological aspects with tourist information.

Dupont-Nivet, Guillaume; Wei, Yang; Tamsin, Blayney; Jean-Noel, Proust; Zhaojie, Guo; Arjen, Grothe; Oleg, Mandic; Chiara, Fioroni; Laurie, Bougeois; Yanina, Najman ( 2015 ) - Cenozoic evolution of the Pamir plateau recorded in surrounding basins, implications on Asian climate and land-sea distribution. - Geophysical Research Abstracts - n. volume 17 [Abstract in Atti di convegno (274) - Abstract in Atti di Convegno]
Abstract

Fontana, D.; Conti, S.; Fioroni, C.; Grillenzoni, C. ( 2015 ) - Factors controlling the evolution of a wedge-top temperate-type carbonate platform in the Miocene of the northern Apennines (Italy) - SEDIMENTARY GEOLOGY - n. volume 319 - pp. da 13 a 23 ISSN: 0037-0738 [Articolo in rivista (262) - Articolo su rivista]
Abstract

An integrated study including stratigraphy, composition and biostratigraphy was performed on temperate-type shallow-water carbonates of early middle Miocene age deposited in a wedge-top basin within the Apenninic chain (Romagna-Tuscan area). The succession rests unconformably on the deep-water sediments of allochthonous Ligurian units and is represented by up to 350 m thick carbonates and mixed siliciclastic-carbonate rocks. Two main units are recognized, each characterized by a distinct facies association. The basal unit (upper Burdigalian) consists of rhodalgal rudstones and packstones of shelf environment, dominated by echinoids, bryozoans, coralline algae and benthic foraminifera, deposited in temperate conditions and showing a transgressive pattern. It gradually passes into mixed carbonate-siliciclastic shallow water-facies, (Langhian in age) characterized by an increase in terrigenous components and planktonic and benthic taxa. Sediment starvation during the Langhian is suggested by the occurrence of glaucony-rich packstones with abundant planktonic foraminifera. The succession grades upwards into upper Langhian-lower Serravallian planktonic foraminifera-rich marls. Increasing detrital discharge and water depth up section result in drowning of the carbonate shelf. Debris-flow deposits including material of extraformational origin are intercalated at different levels, in particular from the uplifting south-western margins, close to the Ligurian thrusts. The inception and demise of these temperate rhodalgal-foramol carbonate sediments located in a wedge-top Epiligurian basins is primarily controlled by synsedimentary tectonics, which in turn affects relative sea-level rise, and nutrient and detrital input. In particular, tectonics controlled the initial stage of the transgression, determining the configuration of the basin, subdivided in narrow submerged palaeotopographic lows and relatively elevated areas. Synsedimentary tectonics related to the thrust migration was also the main controlling factor in the demise of carbonate sedimentation, through the combined effect of two processes: increasing the subsidence of the basin, and triggering the terrigenous discharge from the erosion of the uplifted Apenninic relieves

Salocchi, A.; Fontana, D.; Conti, S.; Fioroni, C.; Grillenzoni, C.; Argentino, C. ( 2015 ) - Inception and crisis of a Miocene temperate-type carbonate shelf in a compressive setting (northern Apennines) - Abstract IMS [Abstract in Atti di convegno (274) - Abstract in Atti di Convegno]
Abstract

A detailed study including stratigraphy and composition has been performed on shallow-water carbonates of early-middle Miocene age deposited in a wedge-top basin in the northern Apennines. In the representative outcrop of Torriana (Val Marecchia valley, Romagna Apennines) more than 140 samples were collected in order to identify factors controlling the inception and crisis of the shelf. The succession unconformably rests on the allochthonous Ligurian units and is constituted by up to 100 m thick carbonates and mixed siliciclastic-carbonate rocks. The basal portion consists of rhodalgal rudstones and grainstones dominated by echinoids, bryozoans, coralline algae and benthic foraminifera. It gradually passes into mixed carbonate-siliciclastic shallow water-facies, characterized by an increase in terrigenous components and planktonic and benthic taxa. The occurrence of glaucony-rich packstones with abundant planktonic foraminifera marks the transition to the upper fine-grained sediments. Results of a detailed compositional study evidence four main phases in the platform evolution, and a progressive decreasing of the carbonate productivity, gradually replaced by detrital sedimentation. Regional factors linked to the Apenninic tectonics seem to primarily support the eu- to mesotrophic conditions in the examined carbonate shelf. However this time interval (late Burdigallian - Serravallian) is characterized by the global fertility event, the Monterey Event, recorded also in the Mediterranean. The stable isotope study shows that this global event also influenced the carbonate production. The inception and demise of these temperate rhodalgal-foramol carbonate sediments located in a wedge-top basin is primarily controlled by synsedimentary tectonics related to the thrust migration, through the combined effect of two processes: increasing the subsidence of the basin, and triggering the terrigenous discharge from the erosion of the uplifted Apenninic areas.

Villa, Giuliana; Fioroni, Chiara; Florindo, Fabio ( 2015 ) - Integrated bio-magnetostratigraphy of ODP Site 709 (equatorial Indian Ocean). - Geophysical Research Abstracts - n. volume 17 - pp. da 7303 a 7304 ISSN: - [Abstract in Atti di convegno (274) - Abstract in Atti di Convegno]
Abstract

Over the last decade, calcareous nannofossil biostratigraphy of the lower Eocene-Oligocene sediments has shown great potential, through identification of several new nannofossil species and bioevents (e.g. Fornaciari et al., 2010; Bown and Dunkley Jones, 2012; Toffanin et al., 2013). These studies formed the basis for higher biostratigraphic resolution leading to definition of a new nannofossil biozonation (Agnini et al., 2014). In this study, we investigate the middle Eocene-lower Oligocene sediments from ODP Hole 709C (ODP Leg 115) by means of calcareous nannofossils and magnetostratigraphy. Ocean Drilling Program (ODP) Site 709 was located in the equatorial Indian Ocean and biostratigraphy has been investigated in the nineties (Okada, 1990; Fornaciari et al., 1990) while paleomagnetic data from the Initial Report provided only a poorly constrained magnetostratigraphic interpretation, thus the cored succession was dated only by means of biostratigraphy. Our goal is to test the reliability in the Indian Ocean of the biohorizons recently identified at Site 711 (Fioroni et al., in press), by means of high resolution sampling, new taxonomic updates, quantitative analyses on calcareous nannofossils allowed to increase the number of useful bioevents and to compare their reliability and synchroneity. The new magnetostratigraphic analyses and integrated stratigraphy allow also to achieve an accurate biochronology of the time interval spanning Chrons C20 (middle Eocene) and C12 (early Oligocene). In addition, this equatorial site represents an opportunity to study the carbonate accumulation history and the large fluctuations of the carbonate compensation depth (CCD) during the Eocene (e.g. Pälike et al., 2012). The investigated interval encompasses the Middle Eocene Climatic Optimum (MECO), and the long cooling trend that leads to the Oligocene glacial state. By means of our new bio-magnetostratigraphic data and paleoecological results we provide further insights on nannofossil assemblage response to the paleoclimatic changes that led to the Oligocene glacial state

Fioroni, Chiara; Villa, Giuliana; Persico, Davide; Jovane, Luigi ( 2015 ) - Middle Eocene-Lower Oligocene calcareous nannofossil biostratigraphy and paleoceanographic implications from Site 711 (equatorial Indian Ocean) - MARINE MICROPALEONTOLOGY - n. volume 118 - pp. da 50 a 62 ISSN: 0377-8398 [Articolo in rivista (262) - Articolo su rivista]
Abstract

Nannofossil data from ODP Site 711 (equatorial Indian Ocean) yield a set of consistent, reliable biohorizons that form the basis of a revised calcareous nannofossil biostratigraphy for the low-latitude Eocene-Oligocene. We discuss 31 biohorizons occurring over an 11 myr time interval which we correlate to previous magnetostratigraphic data. Calcareous nannofossils from the middle Eocene through the lower Oligocene of the studied section are characterized bymoderately well preserved assemblages consisting largely of lowlatitude and cosmopolitan species. A significant nannofossil dissolution interval is evidenced at the middle Eocene Climatic Optimum (MECO). We document a significant increase in late Eocene nannoplankton exhibiting a eutrophic preference. Analysis of the assemblage suggests important changes in the equatorial oceanic regime just before the onset of the Eocene-Oligocene transition (EOT), that foreshadow the more dramatic climatic shift of the early Oligocene.

Villa G.; Fioroni C.; Persico D.; Roberts A.P.; Florindo F. ( 2014 ) - Antarctic glacial history and Southern Ocean productivity during the Middle Eocene - Late Oligocene - Climatic and Biotic events of the Paleogene 2014 - Società Geologica Italiana Roma ITA) - RENDICONTI ONLINE DELLA SOCIETÀ GEOLOGICA ITALIANA - n. volume 31 - pp. da 221 a 222 ISSN: 2035-8008 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

Paleoclimatology and Paleoceanography of the Southern Ocean

Salocchi A.; Fontana D.; Conti S.; Fioroni C.; Grillenzoni C. ( 2014 ) - Cold-seep carbonates as tracers for the evolution of the platform-basin system in the Miocene of the northern Apennines (Italy) - Abstract Book - IAS Geneva CHE) - n. volume 1 - pp. da 601 a 601 ISBN: 9788860251237 ISSN: - [Abstract in Atti di convegno (274) - Abstract in Atti di Convegno]
Abstract

The peculiar methane-derived carbonates enclosed in pelitic and marly deposits of the Miocene inner foredeep in the northern Apennines are useful tracers for an evaluation of tectonic and sedimentary processes in the Miocene shelf-slope-basin system in a compressive geodynamic context. The carbonate precipitation is related to emissions of hydrocarbon-rich fluids and it is controlled by: - tectonic events (tectonics constrains the plumbing system, with faults and fractures serving as conduits and channelling water and methane up to the seafloor); - climatic events (carbonate formation seems to correlate with cold periods and sea-level low-stand). The correlation between methane-derived carbonates and climate during the Miocene in the northern Apennines has been suggested by recent results (Fontana et al,. 2013) of a sedimentological and biostratigraphic study of seep-carbonates and the enclosing hemipelagic Vicchio marls. The study suggests a correlation between the carbonate precipitation and the middle Miocene cooling event (Mi3b). The ascent and emission of methane-rich fluids may have been triggered by the pressure drop due to the eustatic fall. A detailed study of the δ18O record of carbonates and δ13C of total organic matter in enclosing marls has been performed in order to verify a correlative trend in correspondence of the climatic cooling event. A palaeocological study has allowed to check the influence of these stressed environmental conditions on benthic foraminifera assemblages. Therefore morphological, textural, biostratigraphic, geochemical studies could allow to characterize seep-carbonates related to climatic event. Results of this study could contribute to the reconstruction of transgressive-regressive events in the adjacent temperate-type carbonate platforms, as well as the definition of modes and rates of the demise of carbonate deposition and the onset of clastic sedimentation. The identification of cold phases and lowering of sea level in slope-basinal deposits and their detailed timing, may be an useful and innovative tool for correlation with coeval shallow-water successions, and for the reconstruction of the evolution of the Miocene platform-basin system in the compressive setting of the northern Apennines.

Giuliana Villa; Chiara Fioroni; Davide Persico; Andrew P. Roberts and Fabio Florindo ( 2014 ) - Middle Eocene to Late Oligocene Antarctic Glaciation/Deglaciation and Southern Ocean productivity - PALEOCEANOGRAPHY - n. volume 29 (3) - pp. da 223 a 237 ISSN: 0883-8305 [Articolo in rivista (262) - Articolo su rivista]
Abstract

[1] During the Eocene-Oligocene transition, Earth cooled significantly from a greenhouse to an icehouse climate. Nannofossil assemblages from Southern Ocean sites enable evaluation of paleoceanographic changes and, hence, of the oceanic response to Antarctic ice sheet evolution during the Eocene and Oligocene. A combination of environmental factors such as sea surface temperature and nutrient availability are recorded by the assemblages of calcifying organisms, and can be interpreted as responses to the following changes. A cooling trend, which started in the Middle Eocene, was interrupted by transient warming during the Middle Eocene Climatic optimum and by several short cooling episodes. The cooling episode at 39.6 Ma preceded a shift toward an interval that was dominated by oligotrophic nannofossil assemblages from ~39.1 to ~36.2 Ma. We suggest that these oligotrophic conditions were associated with increased water mass stratification, low nutrient contents, and high efficiency of the oceanic biological pump that, in turn, promoted sequestration of carbon from surface waters, which favored cooling. After 36.2 Ma, we document a large synchronous surface water productivity turnover with a dominant eutrophic nannofossil assemblage that was accompanied by a pronounced increase in magnetotactic bacterial abundance. This turnover likely reflects a response of coccolithophorids to changed nutrient inputs that was likely related to partial deglaciation of a transient Antarctic ice sheet and/or to iron delivery to the sea surface. Eutrophic conditions were maintained throughout the Oligocene, which was characterized by a nannofossil assemblage shift toward cool conditions at the Eocene–Oligocene transition. Finally, a warm nannofossil assemblage in the Late Oligocene indicates a warming phase.

Fioroni C.; Villa G.; Persico D. ( 2014 ) - Middle Eocene-Lower Oligocene biostratigraphy and paleoceanography of the Western Equatorial Indian Ocean based on Calcareous Nannofossils, ODP Site 711 - Climatic and Biotic Events of the Paleogene 2014 CBEP 2014 - Società Geologica Italiana Roma ITA) - RENDICONTI ONLINE DELLA SOCIETÀ GEOLOGICA ITALIANA - n. volume 31 - pp. da 76 a 77 ISSN: 2035-8008 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

Nannofossil biostratigraphy and paleoceanography Equatorial Indian Ocean

Grillenzoni G.; Conti S.; Fioroni C.; Fontana D.; Salocchi A ( 2014 ) - The evolution of the Miocene platform-basin system in the northern Apennines: what can we learn from seep-carbonates? - 87°Congresso SGI - Società Geologica Italiana Roma ITA) - RENDICONTI DELLA SOCIETÀ GEOLOGICA ITALIANA - n. volume 31, suppl.1 - pp. da 134 a 134 ISSN: 0392-3037 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

Cold seep-carbonates documenting the expulsion of fluids enriched in methane have been identified in a variety of basin margins and tectonic-sedimentary settings. A number of geological factors influences methane seep activity, but primarily regional and local tectonics, mainly at the deformation front of accretionary prism and inner foredeep. Tectonics constrains the fluid circulation system, with faults and fractures serving as conduits and channelling water and methane up to the seafloor. Recent studies suggest that seep-carbonates occurrence is also controlled by climatic changes and their formation seems to correlate with cold periods and sea level low-stand. A drop of the hydraulic pressure on the plumbing system during sea level lowering in glacial phase could increase methane flows at seeps, inducing carbonate precipitation. The correlation between methane-derived carbonates and climate has been recently suggested for the Miocene of the northern Apennines by means of a sedimentological and biostratigraphic study of seep-carbonates and the enclosing hemipelagic marls (Vicchio Formation) (Fontana et al., 2013). The study suggests a correlation between the carbonate precipitation and the middle Miocene glacial cooling event (Mi3b). The triggering of the ascent and emission of methane-rich fluids may be related to the eustatic fall and in turn to the water pressure drop. A detailed stratigraphic and biostratigraphic study of seep-carbonates and enclosing marls in foredeep deposits of the Tuscan-Romagna Apennines has allowed a precise dating of seepage in slope and basinal successions. The analysis of the δ18O and δ13C records of carbonates, δ13Corg excursion of organic matter and TOC on the marls enclosing the authigenic carbonates has been performed in order to verify a correlative trend in correspondence of the climatic cooling event. A paleoecological study on benthic foraminifera assemblages has also allowed to detail these peculiar environments. The events defined from this study in basinal deposits have been correlated with depositional changes and discontinuity surfaces in the adjacent temperate-type carbonate platforms, and have contributed to the definition of modes and rates of the demise of carbonate deposition. The identification of cold phases and lowering of sea level in slope-basinal deposits and their detailed timing, may be a useful tool for correlation between deep depositional setting and coeval shallow-water successions. This approach may also provide important constrains in the reconstruction of the evolution of the Miocene platform-basin system in this complex compressive setting of the northern Apennines. Fontana D., Conti S., Grillenzoni C., Mecozzi S., Petrucci F. & Turco E. 2013. Evidence of climatic control on hydrocarbon seepage in the Miocene of the northern Apennines:

Filippo Panini; Chiara Fioroni; Paola Fregni ( 2013 ) - Le Brecce argillose di Musigliano (Appennino Vogherese – Tortonese): dati stratigrafici preliminari - RENDICONTI ONLINE DELLA SOCIETÀ GEOLOGICA ITALIANA - n. volume 26 - pp. da 21 a 31 ISSN: 2035-8008 [Articolo in rivista (262) - Articolo su rivista]
Abstract

An integrated biostratigraphic study based on foraminifers and calcareous nannofossils has been performed on two chaotic bodies involved within the Epiligurian pelitic sequence outcropping in the Alessandria and Pavia Apennines (M. Penola & M. Vallassa area), allowing to define the age of their emplacement. The investigated deposits mainly consist of strongly tectonized sediments ensuing from the Ligurian substratum mainly through submarine cohesive mud flows and lithic debris. These chaotic bodies have been previously considered (Gelati et al., 1974; Gelati & Vercesi, 1994) as involved within the Antognola Formation and correlated with similar Lower Miocene deposits widespread in Northern Apennines (Canossa Olistostrome, Val Tiepido-Canossa argillaceous Breccias). Dissenting from previous interpretations, our study shows that these chaotic bodies, named here as “Musigliano argillaceous Breccias” were displaced in an interval between Late Eocene and Early Oligocene. In fact, the biostratigraphic analyses of the marlstones under the chaotic bodies indicate they are attributable to the P15 and P16 planktonic foraminifer biozones of Berggren et al., (1995) corresponding to the G. semiinvoluta and T. cerroazulensis biozones of Mancin et al. (2003). The same pelitic rocks are relatable to the MNP19/20 nannofossil biozone of Catanzariti et al. (1997), corresponding to the NP19/20 of Martini (1971). The Epiligurian marlstones and turbiditic mudstones upon the Musigliano argillaceous Breccias fall in the P19 p.p. / P20 (corresponding to the G. ampliapertura biozone, Mancin et al., 2003) corresponding to the MNP23 biozone (Catanzariti et al., 1997) and to the NP23 biozone of Martini(1971). We correlate the pelitic rocks under the Musigliano argillaceous Breccias to the uppermost part of the Monte Piano Marls (“grey lithofacies” according to Mancin & Cobianchi, 2000 and Panini et al., 2002), and the marlstones and turbiditic mudstones upon the sedimentary chaotic bodies to the Ranzano Formation, on the basis of lithologic features and age. The displacement of the Musigliano chaotic breccias marks a strong stratigraphic break in the Epiligurian sequence; it could be related to events (probably of tectonic nature) previously reported as affecting the lower part of the Epiligurian succession and the coeval sequence of the Tertiary Piedmont Basin (Mutti et al., 1995; Catanzariti et al.,1997; Martelli et al., 1998; Ottria et al., 2001). As in the Emilia south-easternmost Apennines, the Oligocene-Lower Miocene Epiligurian sedimentary record seems to be devoid of typical resedimented arenaceous bodies generally characterizing the Ranzano Formation also in the studied area.

Fioroni C.; Villa G.; Persico D.; Jovane L. ( 2013 ) - Middle Eocene-Lower Oligocene nannofossil biostratigraphy and paleoceanography from ODP Site 711 (Equatorial Indian Ocean) - INA14 Abstracts - International Nannoplankton association Reston (VA) GBR) - JOURNAL OF NANNOPLANKTON RESEARCH - n. volume 33 - pp. da 55 a 55 ISSN: 1210-8049 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

Equatorial biostratigraphy

Grillenzoni C.; Conti S.; Fontana D.; Fioroni C. ( 2013 ) - Seep-carbonate case studies as highlights in the evolution of the Miocene of northern Apennines - JOURNAL OF MEDITERRANEAN EARTH SCIENCES - n. volume Special Issue 2013 - pp. da 79 a 81 ISSN: 2037-2272 [Articolo in rivista (262) - Articolo su rivista]
Abstract

In the last year the study of seep-carbonates

Persico D.; Fioroni C.; Villa G. ( 2012 ) - A refined calcareous nannofossil biostratigraphy for the middle Eocene – early Oligocene Southern Ocean ODP sites - PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY - n. volume 335-336 - pp. da 12 a 23 ISSN: 0031-0182 [Articolo in rivista (262) - Articolo su rivista]
Abstract

This work presents the stratigraphic distribution of several species of calcareous nannofossil in themiddle Eocene early - Oligocene from four Ocean Drilling Program (ODP) sites located between60° and 65°S paleolatitude in the Southern Atlantic and Indian Oceans. Useful nannofossil datumsthat should facilitate construction of age-models and contribute to an integrated chronology for theupper Paleogene Southern Ocean sediments from ~ 42 to 33 Ma are summarized. The distributionpatterns of calcareous nannofossils, studied by means of quantitative and semiquantitative methods,provide an improvement of the classical Southern Ocean biozonations, introducing newbiostratigraphically useful biohorizons, and testing their reproducibility within and outside theregion.

G. Bertolini; C. Fioroni ( 2012 ) - Aerial inventory of surficial geological effects induced by the recent Emilia earthquake (Italy): preliminary report. - ANNALS OF GEOPHYSICS - n. volume 55 (4) - pp. da 705 a 711 ISSN: 2037-416X [Articolo in rivista (262) - Articolo su rivista]
Abstract

As a consequence of the two main shocks that recently struck the central alluvial Po Plain (May 20, 2012, ML 5.9, and May 29, 2012, ML 5.8), a great number of surficial geologic disturbances appeared over a wide area (ca. 500 km2), which extended up to 20 km from the epicenters. The affected area includes Mirabello, San Carlo, Sant'Agostino (Province of Ferrara), San Felice, Cavezzo, Concordia (Modena), Moglia and Quistello (Mantova). Most of the surficial effects that were observed during this study were clearly induced (directly or indirectly) by sand liquefaction phenomena, such as sand volcanoes, burst of water and sand from domestic wells, tension cracks, lateral spreading and associated deformation, graben-like fracturing, and sink-holes. Other effects can probably be ascribed simply to the shaking of the ground (e.g., small collapses of irrigation canal walls). Lastly, there were also some features of dubious origin, such as two 'yellow crop spots' that are cited here with reservations. All of these data were surveyed by means of a small airplane that was especially adapted for this purpose. The aim of this study was to furnish a wide-ranging image of the surface deformation over the whole area impacted by these recent earthquakes, as an instrument towards more exhaustive research, both at the scientific and technical levels (e.g., seismic microzonation).

Fioroni C.; Villa G.; Persico D.; Wise S.W.; Pea L. ( 2012 ) - Revised middle Eocene - upper Oligocene calcareous nannofossil biozonation for the Southern Ocean - REVUE DE MICROPALÉONTOLOGIE - n. volume 55 (2) - pp. da 53 a 70 ISSN: 0035-1598 [Articolo in rivista (262) - Articolo su rivista]
Abstract

Calcareous Nannofossils are widely utilized in biostratigraphic studies of Cenozoic sediments.In recent years large datasets have been acquired, and several bioevents showed to be unreliable whencorrelated over distant areas. New biostratigraphic investigations of middle Eocene-upper Oligocenedeep-sea cores have highlighted problem areas in the currently used calcareous nannofossil zonalschemes for the Southern Ocean for this time interval. Quantitative analysis on sediments from sevensites from this area, characterized by abundant, diverse, and moderately to well-preserved nannofloralassemblages, have enabled a revision of the existing zonation for the Southern Ocean, and thedevelopment of a high-resolution zonal scheme for the middle Eocene-upper Oligocene. Eleven zonesand six subzones are introduced or emended to replace the ten zones and two subzones of the Wei andWise (1990a) and Wei and Thierstein (1991) zonations, with the identification of several newbiohorizons. New age calibrations are provided improving regional correlations and evaluating thereliability of the identified events for supraregional correlations. Comparisons are made between theproposed zonation and the existing schemes, both on nannofossils from different geographic areas, andon foraminifers from southern high latitude.

Bettelli G.; Panini F.; Fioroni C.; Nirta G.; Remitti F.; Vannucchi P.; Carlini M. ( 2012 ) - Revisiting the Geology of the "Sillaro Line", Northern Apennines, Italy - RENDICONTI ONLINE DELLA SOCIETÀ GEOLOGICA ITALIANA - n. volume 22 - pp. da 14 a 17 ISSN: 2035-8008 [Articolo in rivista (262) - Articolo su rivista]
Abstract

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C. Fioroni; G. Villa; D. Persico; S.W. Wise; L. Pea ( 2011 ) - Revised middle Eocene - upper Oligocene calcareous nannofossil biozonation for the Southern Ocean - Epitome - EPITOME - n. volume 4 - pp. da 260 a 260 ISSN: 1972-1552 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

Revision of the existing biostratigraphic schemes for the Southern Ocean

G.Villa; C. Fioroni; D. Persico ( 2010 ) - Middle Eocene – Late Oligocene paleoceanographic changes inferred by calcareous nannofossils from Kerguelen Plateau and Maud Rise (Antarctica) - JOURNAL OF NANNOPLANKTON RESEARCH - n. volume - - pp. da 112 a 112 ISSN: 1210-8049 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

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C. Fioroni; P. Fregni; R. Guidetti; A. Pederzoli; L. Pini; P. Veronesi ( 2010 ) - Progetto integrato sull'evoluzione come concetto unificante delle Scienze Naturali: tematiche diverse ma interagenti. - New trends in Science and Technology Education: Selected Papers - CLUEB Bologna ITA) - n. volume 1 - pp. da 105 a 121 ISBN: 9788849133929 ISSN: - [Contributo in Atti di convegno (273) - Relazione in Atti di Convegno]
Abstract

-Numerosi sono gli argomenti che si possono prestare all’integrazione fra discipline scientifiche e in special modoquelle afferenti alle scienze della natura che risultano imprescindibili l’una dall’altra.Poiché l’evoluzione fornisce importanti nozioni e spiega i meccanismi fondamentali per la comprensione delmondo naturale, i curricula didattici e gli insegnanti dovrebbero enfatizzare la sua importanza come concettounificante delle Scienze Naturali per la poliedricità di argomenti coinvolti.Vista la rilevanza della tematica si è sentita la necessità di elaborare una proposta didattica che costituisse unapossibile risposta al problema presentato.

C. Fioroni; G. Villa; D. Persico; S.W. Wise; L. Pea ( 2010 ) - Revised Eocene-Oligocene calcareous nannofossil biozonation for the Southern Ocean - JOURNAL OF NANNOPLANKTON RESEARCH - n. volume - - pp. da 48 a 49 ISSN: 1210-8049 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

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Bertolini G.; Fioroni C. ( 2009 ) - Il paesaggio geologico dei gessi triassici - MEMORIE DELL'ISTITUTO ITALIANO DI SPELEOLOGIA. SERIE GEOLOGICA E GEOFISICA - n. volume 22 - pp. da 9 a 22 ISSN: - [Articolo in rivista (262) - Articolo su rivista]
Abstract

This paper presents a virtual excursion “inside” the landscape of the Triassic Gypsum Formation and the upperSecchia Valley. It proposes an aerial view that, through different viewpoints, allows the observer to recogniseelements of the landscape that are difficult to see from the ground, such as the long faults shapingthe steep slopes and the largest landslides of the Emilia-Romagna Apennines. The broad bed of the Secchiariver flows in a straight course for 5.5 kilometres between towering rock-faces of white, pink and lightgray gypsum, rising up 200 metres in some point. Triassic Gypsum contains a number of different lithologies:gypsum, anhydrites, dolomite and quartzite, which form a distorted rock structure with fragments of layersthat present ruptures and folding. They were deposited during the Upper Triassic (215-200 million years ago)and therefore are the oldest rock outcrops in the Emilia-Romagna Apennines. The linear shape of the mainversants is interrupted by lateral valleys drawn by the tectonics, such as the Sologno and The Dorgola valleys.These numerous morphological features make this landscape unique within the Apennines. The steepgradients, coupled with instability brought about by karstic phenomena, make this a suggestive but highlyinhospitable area.

Fioroni C.; Fregni P.; Guidetti R.; Pederzoli A.; Pini L.; Veronesi P. ( 2009 ) - L'evoluzione come concetto unificante delle Scienze Naturali - New Trends in Science and Technology Education: Abstract Booklet - Scuola di specializzazione per l'insegnamento secondario Modena ITA) - n. volume - - pp. da 18 a 19 ISBN: 978 ISSN: - [Abstract in Atti di convegno (274) - Abstract in Atti di Convegno]
Abstract

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BERTOLINI; G.; FIORONI; C. ( 2008 ) - Evidenze geologiche di variazioni climatiche oloceniche. - IL GEOLOGO DELL'EMILIA-ROMAGNA - n. volume 29 - pp. da 15 a 18 ISSN: - [Articolo in rivista (262) - Articolo su rivista]
Abstract

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FIORONI C.; PERSICO D.; PEA L.; PALANDRI S.; VILLA G. ( 2008 ) - High resolution Late Eocene - Late Oligocene biostratigraphy from Site 1090 (Agulhas Ridge, South Atlantic) - JOURNAL OF NANNOPLANKTON RESEARCH - n. volume - - pp. da 56 a 56 ISSN: 1210-8049 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

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PEA L.; FIORONI C.; PERSICO D.; PALANDRI S.; VILLA G. ( 2008 ) - Late Eocene - late Oligocene nannofossil paleoecology at Site 1090 (Agulhas Ridge, South Atlantic) - JOURNAL OF NANNOPLANKTON RESEARCH - n. volume - - pp. da 91 a 92 ISSN: 1210-8049 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

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VILLA, G.; FIORONI, C.; PEA, L.; BOHATY, S.; PERSICO, D. ( 2008 ) - Middle Eocene-late Oligocene climate variability: Calcareous nannofossil response at Kerguelen Plateau, Site 748 - MARINE MICROPALEONTOLOGY - n. volume 69 - pp. da 173 a 192 ISSN: 0377-8398 [Articolo in rivista (262) - Articolo su rivista]
Abstract

A major deterioration in global climate occurred through the Eocene–Oligocene time interval,characterized by long-term cooling in both terrestrial and marine environments. During thislong-term cooling trend, however, recent studies have documented several short-livedwarmingand cooling phases. In order to further investigate high-latitude climate during these events, wedeveloped a high-resolution calcareous nannofossil record from ODP Site 748 Hole B for theinterval spanning the late middle Eocene to the late Oligocene (~42 to 26 Ma). The primarygoals of this study were to construct a detailed biostratigraphic record and to use nannofossilassemblage variations to interpret short-term changes in surface-water temperature andnutrient conditions. The principal nannofossil assemblage variations are identified using atemperate-warm-water taxa index (Twwt), from which three warming and five cooling eventsare identified within the middle Eocene to the earliest Oligocene interval. Among these climatictrends, the cooling event at ~39 Ma (Cooling Event B) is recorded here for the first time.Variations in fine-fraction δ18O values at Site 748 are associated with changes in the Twwt index,supporting the idea that significant short-term variability in surface-water conditions occurredin the Kerguelen Plateau area during the middle and late Eocene. Furthermore, ODP Site 748calcareous nannofossil paleoecology confirms the utility of these microfossils forbiostratigraphic, paleoclimatic, and paleoceanographic reconstructions at Southern Oceansites during the Paleogene.

FIORONI C.; FREGNI P. ( 2008 ) - Percorsi divulgativi per una nuova didattica delle Scienze della Terra - ATTI E MEMORIE. ATTI - ACCADEMIA NAZIONALE DI SCIENZE LETTERE E ARTI DI MODENA - n. volume 10 - pp. da 77 a 78 ISSN: 1724-0182 [Articolo in rivista (262) - Articolo su rivista]
Abstract

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VILLA G.; FIORONI C.; PEA L.; BOHATY S.; PERSICO D. ( 2007 ) - Climatic variations in Eocene - Oligocene nannofossil assemblages (Kerguelen Plateau) - EPITOME - n. volume 2 - pp. da 271 a 271 ISSN: 1972-1552 [Contributo in Atti di convegno (273) - Relazione in Atti di Convegno]
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FIORONI C.; FREGNI P. ( 2007 ) - Il fiume: un percorso didattico per la divulgazione delle scienze della natura. - - - Regione Emilia Romagna Bologna ITA) - n. volume - - pp. da 309 a 312 ISBN: 978 ISSN: - [Abstract in Atti di convegno (274) - Abstract in Atti di Convegno]
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FREGNI P.; FIORONI C. ( 2007 ) - La città: un laboratorio didattico per la divulgazione delle Scienze. - - - Regione Emilia Romagna Bologna ITA) - n. volume - - pp. da 86 a 91 ISBN: 978 ISSN: - [Contributo in Atti di convegno (273) - Relazione in Atti di Convegno]
Abstract

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FREGNI P.; FIORONI C. ( 2007 ) - Modena: an open air workshop for teaching Earth Sciences and for integration with other subjecs. - EPITOME - n. volume 2 - pp. da 375 a 375 ISSN: 1972-1552 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

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GASPERI G; PRETI. D; BETTELLI G; F. PANINI; C. FIORONI; P. FREGNI; S.C. VAIANI ( 2006 ) - Carta Geologica d’Italia a scala 1:50.000. Foglio N. 219 “Sassuolo”. [Cartografia (294) - Cartografia]
Abstract

(Ed. 2005)

PANINI F.; FIORONI C. ; FREGNI P. ( 2006 ) - Geologia dell'area di Varzi (Appennino vogherese): note preliminari. - ATTI TICINENSI DI SCIENZE DELLA TERRA - n. volume 45(2004) - pp. da 43 a 59 ISSN: 0394-0691 [Articolo in rivista (262) - Articolo su rivista]
Abstract

The geological survey of the Ligurids and the overlying epi-Ligurian Sequence outcropping in the Varzi zone (Oltrepo Pavese, Voghera Apennines) has brought to the acquisition of new stratigraphic and structural data in an area whose geological cartography goes back to about thirty years. The studied area is set behind an important tectonic line (Villavernia-Varzi Line) dividing the northern Apennines from the deposits of the Tertiary Piedmont Basin. The outcropping Ligurids are referable to the Cassio tectonic unit and belonging both to the Cretaceous “basal complexes” or pre-Flysch formations, and to the stratigraphically overlying upper Cretaceous-Paleogene turbiditic succession (Cassio-Viano or Val Tresinaro Sequence). Particularly, some outcrops, in the past included inside the “Chaotic pluriformational Complex” or attributed to the Pagliaro Shales, are correlable to the Viano Shales overlying the Mt. Cassio Flysch with a conformable and transitional boundary in the Emilia Apennines.The stratigraphic features of the epi-Ligurian Sequence show very close analogies with those present in many areas of the Emilia Apennines. The lower Eocene-Oligocene and lowermost Miocene part of the succession shows, besides the Monte Piano Marls, the Ranzano Fm. and the Antognola Fm., also a thick body of matrix-supported argillaceous polygenic breccias derived from mud and debris flows of Ligurian mainly shaly rocks. This body is correlable to the similar deposits that in the Emilia Apennines have been joined under the name of Baiso argillaceous Breccias, middle-late Eocene in age, approximately corresponding to the sedimentation span of time of the Monte Piano Marls. The uppermost part of the epi-Ligurian Sequence (Miocene in age) is represented by the Contignaco and Pantano Formations widely outcropping also in the Emilia Apennines and made of relatively fine-grained clastic deposits respectively with a siliceous and carbonatic dominant feature. Finally, both on Contignaco and Pantano Fms. prevailing clastic shelf deposits awarded to the Mt. Vallassa Sandstones outcrop. Their badly defined age (middle?-upper? Miocene) and their stratigraphic position suggest a questionable correlation either with the upper Miocene Termina Formation or with the middle Miocene inner shelf deposits belonging to the Bismantova Group of the Emilia Apennines.On the basis of their attitude, a strong structural difference between the lower (pre-Miocene) and the upper part of the epi-Ligurian Sequence is clear. The first one is partly involved in an overturned synclinal and it generally shows tectonic contacts among the formations and meaningful stratigraphical differences among neighboring zones. The second shows, on the whole, a more simple attitude (monoclinalic), usually plunging to N-NW and preserved stratigraphic boundaries. This suggests that also this sector of the Voghera Apennines has been interested, as in other areas of the Oltrepo Pavese and of the Emilia Apennines, by Oligocene and/or late Oligocene-early Miocene deforming phase. This late Oligocene-early Miocene tectonic phase has been connected to the widespread deposition of thick chaotic deposits of Ligurian materials (Val Tiepido-Canossa argillaceous Breccias) within the epi-Ligurian basin. A second meaningful Miocene (late Serravallian - early Tortonian?) deforming phase (mainly characterized by the development of a moderate brittle tectonics) is documented by the stratigraphic discontinuity at the base of the Mt. Vallassa Sandstones.

FIORONI C.; BERTOLINI G. ( 2006 ) - L’alluvione tardo medievale di Rubiera (RE). Abstract Convegno Nazionale Geosed, Modena, settembre 2006. - GeoSed2006 - GeoSed Modena ITA) - n. volume - - pp. da 54 a 56 ISBN: 978 ISSN: - [Abstract in Atti di convegno (274) - Abstract in Atti di Convegno]
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GASPERI G; PRETI G; G. BETTELLI; PANINI F; PIZZIOLO M; BONAZZI U; FIORONI C; FREGNI P; VAIANI S. C ( 2006 ) - Note illustrative della Carta Geologica d'Italia alla scala 1: 50.000. Foglio 219 "Sassuolo". APAT, Regione Emilia Romagna - S.EL.CA. FIRENZE ITA) - pp. da 1 a 196 ISBN: 978 ISSN: - [Monografia o trattato scientifico (276) - Monografia/Trattato scientifico]
Abstract

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Persico D.; Villa G.; Fioroni C.; Pea L. ( 2006 ) - Response to Eocene-Oligocene nannofossils to southern ocean temperature variation. - JOURNAL OF NANNOPLANKTON RESEARCH - n. volume - - pp. da 78 a 79 ISSN: 1210-8049 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

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F. PANINI; FIORONI C.; FREGNI P.; PIZZIOLO M. ( 2005 ) - Carta geologica dell'Appennino emiliano-romagnolo a scala 1:10.000 - Sezione 219150 "S. Dalmazio" (Edizione 2003) [Cartografia (294) - Cartografia]
Abstract

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F. PANINI; BONAZZI U.; FIORONI C.; FREGNI P. ( 2005 ) - Carta geologica dell'Appennino emiliano-romagnolo a scala 1:10.000 - Sezione 219160 "Guiglia" (Edizione 2003) [Cartografia (294) - Cartografia]
Abstract

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BONAZZI U; C. FIORONI; FREGNI P; PIZZIOLO M; PRETI D ( 2005 ) - Carta Geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Foglio n. 219010 “Scandiano”. Regione Emilia Romagna, S.EL.CA. Firenze. [Cartografia (294) - Cartografia]
Abstract

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BONAZZI U; C. FIORONI; FREGNI P; GASPERI G; PIZZIOLO M; PRETI D ( 2005 ) - Carta Geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Foglio n. 219060 “Sassuolo”. Regione Emilia Romagna, S.EL.CA. Firenze. [Cartografia (294) - Cartografia]
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BONAZZI U; FIORONI C.; FREGNI P. ( 2005 ) - Carta Geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Foglio n.219150 “Castellarano”. Regione Emilia Romagna, S.EL.CA. Firenze. [Cartografia (294) - Cartografia]
Abstract

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GASPERI G; BETTELLI G; F. PANINI; U. BONAZZI; C. FIORONI; P. FREGNI; S.C. VAIANI ( 2005 ) - Carta geologica e Note illustrative della Carta Geologica d’Italia a scala 1:50.000. Foglio N. 219 “Sassuolo”, - S.EL.CA. FIRENZE ITA) - pp. da 0 a 195 ISBN: 9780000000002 ISSN: - [Monografia o trattato scientifico (276) - Monografia/Trattato scientifico]
Abstract

Vedi introduzione nel file Note illustrative

VILLA G.; FIORONI C.; PERSICO D. ( 2005 ) - Middle Eocene climatic optimum as recognized by calcareous nannofossils at Kerguelen Plateau, Site 748. Convegno Fist, 21-23 settembre 2005 (poster) Epitome, 01.0079, geoitalia2005. - EPITOME - n. volume 1 - pp. da 22 a 22 ISSN: 1972-1552 [Abstract in rivista (266) - Abstract in Rivista]
Abstract

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S. Conti; D. Fontana; A. Gubertini; G. Sighinolfi; F. Tateo; C. Fioroni; P. Fregni ( 2004 ) - A multidisciplinary study of middle Miocene seep-carbonates from the northern Apennines foredeep (Italy). - SEDIMENTARY GEOLOGY - n. volume 169 - pp. da 1 a 19 ISSN: 0037-0738 [Articolo in rivista (262) - Articolo su rivista]
Abstract

Several pelitic intervals are intercalated at various levels within the marly-arenaceous turbiditic successions of the middle Miocene northern Apennine foredeep. They range in thickness from 30 to 200 m, and represent sedimentation on top of ephemeral structural highs related to blind faults. Sediments are made up of hemipelagites and fine-grained turbidites, and include C-13-depleted carbonates, related to the rising of methane-rich fluids (hydrocarbon seep-carbonates). Large portions of pelitic intervals are involved in chaotic masses by soft sediment deformation (slumps, slides, intraformational breccias), revealing an intense sediment instability during middle Miocene. A stratigraphic, mineralogic and geochemical study was conducted on two of these pelitic intervals (Castagno d´Andrea, Mt Citerna) in order to reconstruct carbonate development, the composition of fluids, and to document the connections between fluid seepage and syndepositional tectonics. This multidisciplinary approach has allowed us to discriminate between the two examined pelitic intervals in terms of age, depositional rates and conditions, organic carbon and post-depositional processes. Seep-carbonates are characterized by chemosymbiotic fossil communities, autoclastic fractures and brecciation; carbonate bodies show complex facies relationships, as indicative of different stages in chemoherm growth. The compositional study evidences the peculiar chemistry of chemoherm carbonates (calcite low in Mg and Sr) compared with carbonates in associated enclosing pelites and with modern chemoherms, in general. The non-carbonate components within the chemoherms are enriched in detrital minerals and depleted in phyllosilicates with respect to the enclosing pelites. The mineralogical changes in the clay component within the brecciated unit of the Castagno d´Andrea chemoherms suggest authigenic precipitation of the Mg-rich phases. Isotopic analyses show the distinct carbon signature in the chemoherms from the two examined intervals (Castagno d´Andrea chemoherms more depleted, from - 15.8parts per thousand up to - 41.3parts per thousand PDB, than Mt Citema, from - 5.2parts per thousand up to - 16.7parts per thousand), and the transitional C-13-depletion trend observed moving from chemoherms to the enclosing pelites (moderately depleted) and Te (Bouma sequence) turbidites (in the range of marine carbonates). A slight but significant enrichment in delta(18)O (up to +1.4% PDB);is observed for all chemoherms when compared to values of carbonate phases present in enclosing pelites. Geochemical data indicate that the brecciated facies of seep-carbonates are related to an explosive release of gaseous fluids probably associated with the rise of deep hypersaline fluids.

BETTELLI G; CONTI S; FIORONI C; FREGNI P; GIBELLINI R; PANINI F.; VANNUCCHI P ( 2004 ) - Criteri e metodi di rilevamento delle rocce caotiche in aree campione: l'area tra Abbadia S. Salvatore e Piancastagnaio (Toscana meridionale). Carta Geologica alla scala 1:10000. [Cartografia (294) - Cartografia]
Abstract

Risorsa Elettronica

BETTELLI G; CONTI S; FIORONI C; FREGNI P; MONDANI C; F. PANINI; VANNUCCHI P ( 2004 ) - Criteri e metodi di rilevamento delle rocce caotiche in aree campione: l'area tra i Fiumi Sinello e Osento (Molise). Carta Geologica alla scala 1:10000. [Cartografia (294) - Cartografia]
Abstract

Risorsa Elettronica

BETTELLI G.; CONTI S.; FIORONI C.; FREGNI P.; MONDANI C.; PANINI F.; VANNUCCHI P. ( 2003 ) - Carta Geologica alla scala 1:50.000 dell'area compresa tra Borgo Priolo e Ruino. [Cartografia (294) - Cartografia]
Abstract

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PANINI F.; BETTELLI G. & PIZZIOLO M. con contributi di AMOROSI A.; BASOLI R.; BONAZZIU.; BORSETTI A. M.; CAPITANI M.; FIORONI C.; FREGNI P.; FONTANA D.; MANTOVANI UGUZZONI M. P. ( 2003 ) - Carta Geologica Regionale alla scala 1:25.000 della Regione Emilia-Romagna, "Monghidoro"- 237 SE. Foglio 237 "Sasso Marconi". [Cartografia (294) - Cartografia]
Abstract

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PANINI F.; BETTELLI G. & PIZZIOLO M. con contributi di AMOROSI A.; BASOLI R.; BONAZZI U.; BORSETTI A. M.; CAPITANI M.; FIORONI C.; FREGNI P.; FONTANA D.; MANTOVANI UGUZZONI M. P. ( 2003 ) - Carta Geologica Regionale alla scala 1:25.000 della Regione Emilia-Romagna, "Sasso Marconi- 237 NE. Foglio 237 "Sasso Marconi". [Cartografia (294) - Cartografia]
Abstract

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PANINI F.; BETTELLI G.; PIZZIOLO M. con contributi di AMOROSI A.; BASOLI R.; BONAZZI U.; BORSETTI A. M.; CAPITANI M.; FIORONI C.; FREGNI P.; FONTANA D.; MANTOVANI UGUZZONI M. P. ( 2003 ) - Carta Geologica Regionale alla scala 1:25.000 della Regione Emilia-Romagna, "Savigno- 237 NO. Foglio 237 "Sasso Marconi" [Cartografia (294) - Cartografia]
Abstract

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PANINI F.; G. BETTELLI; PIZZIOLO M.; CON CONTRIBUTI DI; AMOROSI A.; BASOLI R.; BONAZZI U.; BORSETTI A. M.; CAPITANI M.; FIORONI C.; FREGNI P.; FONTANA D.; MANTOVANI UGUZZONI M. P. ( 2003 ) - Carta Geologica Regionale alla scala 1:25.000 della Regione Emilia-Romagna, "Vergato"- 237 SO. Foglio 237 "Sasso Marconi". S.EL.CA Firenze [Cartografia (294) - Cartografia]
Abstract

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G. Bettelli; S. Conti; C. Fioroni; P. Fregni; C. Mondani; F. Panini; P. Vannucchi ( 2003 ) - Criteri e metodi di rilevamento delle rocce caotiche in aree campione: l’area tra i fiumi Sinello e Osento [Cartografia (294) - Cartografia]
Abstract

rilevamento geologico di arre campione, utili alla definizione di rocce caotiche

P. Fregni; F. Panini; D. Corradini; C. Fioroni; S. Lugli; M. Ansaloni ( 2003 ) - I depositi tardo-messiniani di Savignano sul Panaro (Appennino modenese) - ATTI TICINENSI DI SCIENZE DELLA TERRA - n. volume 44 - pp. da 57 a 73 ISSN: 0394-0691 [Articolo in rivista (262) - Articolo su rivista]
Abstract

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F. PANINI; G. BETTELLI; M. PIZZIOLO e con contributi di A. AMOROSI; R. BASOLI; U. BONAZZI; AM BORSETTI; M. CAPITANI; C. FIORONI; D. FONTANA; P. FREGNI; M.P. MANTOVANI UGUZZONI ( 2002 ) - Carta Geologica d’Italia a scala 1:50.000. Foglio N. 237 “Sasso Marconi”. [Cartografia (294) - Cartografia]
Abstract

S.EL.CA., Firenze, Italy

Bettelli G.; Panini F.; Pizziolo M. e con contributi di;: Amorosi A.; Bonazzi U.; Fazzini P.; Fioroni C.; Fregni P. ; Mantovani Uguzzoni M.P. ( 2002 ) - Carta Geologica d’Italia a scala 1:50,000. Foglio 236 “Pavullo” [Cartografia (294) - Cartografia]
Abstract

carta geologica progetto CARG

Panini F.; Fioroni C.; Fregni P.; Bonacci M. ( 2002 ) - Le rocce caotiche dell’Oltrepo pavese: note illustrative della carta geologica dell’Appennino vogherese tra Borgo Priolo e Ruino - ATTI TICINENSI DI SCIENZE DELLA TERRA - n. volume 43 - pp. da 83 a 109 ISSN: 0394-0691 [Articolo in rivista (262) - Articolo su rivista]
Abstract

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G. Bettelli; F. Panini; M. Pizziolo; U. Bonazzi; M. Capitani; P. Fazzini; C. Fioroni; P. Fregni; G. Gasperi ( 2002 ) - Note illustrative alla Carta Geologica d’Italia a scala 1:50.000. Foglio N. 236 “Pavullo” [Cartografia (294) - Cartografia]
Abstract

Note illustrative

PANINI F; BETTELLI G; PIZZIOLO M; BONAZZI U; CAPITANI M; GASPERI G; FIORONI C; P. FREGNI ( 2002 ) - Note illustrative alla Carta Geologica d’Italia a scala 1:50.000. Foglio N. 237 “Sasso Marconi”. [Cartografia (294) - Cartografia]
Abstract

Note illustrative

G. Bettelli; M. Boccaletti; U. Cibin; F. Panini; C. Poccianti; S. Rosselli; F. Sani; R. Catanzariti; C. Fioroni; E. Fornaciari; P. Fregni; A. Di Giulio; M. Benvenuti; P. Gasperini; L. Martelli ( 2002 ) - Note illustrative della Carta Geologica d’Italia alla scala 1:50.000. Foglio 252 – "Barberino del Mugello" [Cartografia (294) - Cartografia]
Abstract

note illustrative

BETTELLI G.; PANINI F.; PIZZIOLO M.; con contributi di; AMOROSI A.; BONAZZI U.; FAZZINI P.; FIORONI C.; FREGNI P .; MANTOVANI UGUZZONI M. P. ( 2001 ) - Carta Geologica Regionale alla scala 1:25.000 della Regione Emilia-Romagna, "Montese"- 236 SE. Foglio 236 "Pavullo nel Frignano". [Cartografia (294) - Cartografia]
Abstract

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BETTELLI G.; PANINI F.; PIZZIOLO M.; con contributi di ;AMOROSI A.; BONAZZI U.; FAZZINI P.; FIORONI C.; FREGNI P .; MANTOVANI UGUZZONI M. P. ( 2001 ) - Carta Geologica Regionale alla scala 1:25.000 della Regione Emilia-Romagna, "Pavullo nel Frignano"- 236 NE. Foglio 236 "Pavullo nel Frignano". S.EL.CA Firenze [Cartografia (294) - Cartografia]
Abstract

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BETTELLI G.; PANINI F.; PIZZIOLO M. con contributi di AMOROSI A.; BONAZZI U.; FAZZINI P.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M. P. ( 2001 ) - Carta Geologica Regionale alla scala 1:25.000 della Regione Emilia-Romagna"Fanano"- 236 SO. Foglio 236 "Pavullo nel Frignano". [Cartografia (294) - Cartografia]
Abstract

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BETTELLI G.; PANINI F.; PIZZIOLO M. con contributi di AMOROSI A.; BONAZZI U.; FAZZINI P.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M. P. ( 2001 ) - Carta Geologica Regionale alla scala 1:25.000 della Regione Emilia-Romagna"Lama Mocogno"- 236 NO. Foglio 236 "Pavullo nel Frignano". [Cartografia (294) - Cartografia]
Abstract

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F. Panini; C. Fioroni; G. Bettelli; C. Mondani ( 2001 ) - L'unità stratigrafico-strutturale Samoggia (Liguridi esterne) dell'Appennino bolognese-modenese: dati stratigrafici e considerazioni paleogeografiche. - ATTI TICINENSI DI SCIENZE DELLA TERRA - n. volume 42 - pp. da 153 a 174 ISSN: 0394-0691 [Articolo in rivista (262) - Articolo su rivista]
Abstract

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g. Bettelli; m. Bonacci; S. Conti; P. Fregni; C. fioroni; R. Gibellini; c. Mondani; F. Panini; p. Vannucchi ( 2000 ) - Metodi e tecniche di rilevamento delle rocce caotiche appenniniche - Riassunti - Centro di Studi per la Geodinamica alpina e Quaternaria Milano ITA) - pp. da 26 a 26 ISBN: 978 ISSN: - [Contributo in Atti di convegno (273) - Relazione in Atti di Convegno]
Abstract

La ricerca si propone di definire i criteri di rilevamento (principi) ed i metodi pratici (tecniche) utilizzabili nella cartografia di rocce sedimentarie prive di una coerenza interna a causa dell’assenza di superfici di stratificazione lateralmente continue. Questo è stato possibile tramite l’esperienza maturata nel rilevamento di vasti settori dell’Appennino Settentrionale e attraverso lo studio di tre aree campione ubicate in differenti contesti geotettonici dell’Appennino (Toscana meridionale, Appennino vogherese e Abruzzo meridionale). Nello studio delle rocce caotiche deve essere tenuto distinto il problema che riguarda la genesi della loro struttura/tessitura da quello che riguarda la loro attuale giacitura. Devono essere individuati, pertanto, dei criteri utili a riconoscere in modo oggettivo i meccanismi responsabili della struttura/tessitura caotica, e dei criteri che permettano di ricavare le modalità con le quali la stessa roccia ha acquisito la sua attuale giacitura.Alla scala dell’affioramento i caratteri oggettivi che permettono di attribuire la genesi di una roccia caotica a meccanismi sedimentari o tettonici sono: l’associazione litologica, la tessitura e la struttura mesoscopica.Gli elementi diagnostici utili a riconoscere i meccanismi che hanno portato una roccia ad acquisire una giacitura caotica sono: l’estensione e lo spessore; la natura dei contatti; le relazioni con le rocce circostanti; il fatto che rappresenti un corpo che include altri corpi stratigraficamente incompatibili o che costituisca un corpo estraneo dal punto di vista stratigrafico; l’esistenza di stili strutturali contrastanti; la presenza di collocazioni stratigrafiche anomale; l’esistenza di caratteristiche paleoambientale incongruenti.L’insieme dei criteri e degli elementi diagnostici elencati permette di distinguere i seguenti tipi di rocce caotiche: brecce sedimentarie (depositi di debris e mud flow); tettoniti in situ o primarie; associazioni di tettoniti e brecce sedimentarie; tettoniti dislocate da meccanismi sedimentari o tettoniti secondarie.Le tecniche ed i criteri individuati hanno dimostrato una validità generale, applicabile nei vari domini geotettonici dell’Appennino, indipendentemente dall’entità delle deformazioni tettoniche. Essi rappresentano quindi uno strumento fondamentale non solo per migliorare la qualità della rappresentazione cartografica ma anche per ottenere informazioni di carattere stratigrafico e strutturale, indispensabili a descrivere la storia geologica di una regione caratterizzata dalla presenza di rocce sedimentarie stratigraficamente incoerenti.

Bertacchini M.; Bettelli G.; Bonazzi U.; Capedri S.; Capitani M.; Castaldini D.; Conti S.; Corradini D.; Fioroni C.; Fontana D.; Fregni P.; Gasperi G.; Giusti C.; Lugli S.; Marchetti M.; Panini F.; Panizza M.; Pellegrini M.; Piacente S.; Rossi A.; Soldati M.; Tosatti G. ( 1999 ) - I Beni Geologici della Provincia di Modena - Artioli Editore MODENA ITA) - pp. da 1 a 104 ISBN: 9788877920638 ISSN: - [Monografia o trattato scientifico (276) - Monografia/Trattato scientifico]
Abstract

Sono presentati, sotto forma di schede, i beni geologici (o geositi) censiti nella Provincia di Modena. Le schede sono state aggregate in cinque paragrafi: Beni geomorfologici, Fluidi sotterranei, Esposizioni di valore stratigrafico e strutture sedimentarie, Esposizioni di strutture tettoniche, Ofioliti. Si è cercato di privilegiare da un lato una guida scientifica alla geologia della Provincia e dall'altro di segnalare un alto numero di siti allo scopo di salvaguardare il più possibile l'ambiente modenese, caratterizzato, in molte sue parti, da un'intensa e continua antropizzazione.

S. CONTI; FIORONI C.; GASPERI G.; GIUSTI C.; MARCHETTI M. ( 1999 ) - 50 - Le discordanze e le forme calanchive nella successione neogenica - quaternaria, affiorante nella valle del Rio del Petrolio - I beni geologici della Provincia di Modena - ARTIOLI Modena ITA) - pp. da 56 a 57 ISBN: 9788877920638 ISSN: - [Contributo in volume (Capitolo o Saggio) (268) - Capitolo/Saggio]
Abstract

Gli affioramenti occupano la piccola valle del Rio del Petrolio

BERTOLINI G; BETTELLI G.; BONAZZI U; FIORONI C; FREGNI P; MANTOVANI UGUZZONI M.P; PANINI F; PIZZIOLO M. ( 1997 ) - Carta geologica dell'Appennino emiliano-romagnolo 1:10.000. Sezione N. 237070" Marzabotto”. Regione Emilia Romagna, S.EL.CA. Firenze. [Cartografia (294) - Cartografia]
Abstract

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Fioroni C.; Fontana D.; Panini F.; Parmeggiani F. ( 1996 ) - La successione Monte Venere - Monghidoro nell'Appennino modenese e bolognese - ATTI E MEMORIE - ACCADEMIA NAZIONALE DI SCIENZE LETTERE ED ARTI DI MODENA - n. volume 15 - pp. da 223 a 257 ISSN: 1124-2493 [Articolo in rivista (262) - Articolo su rivista]
Abstract

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CAVAZZUTI M.; FIORONI C.; FREGNI P.; PANINI F.; PIZZIOLO M ( 1995 ) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 236160 “Bombiana”. [Cartografia (294) - Cartografia]
Abstract

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PANINI F.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P. ( 1994 ) - Carta Geologica dell'Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 237110 "Rioveggio". [Cartografia (294) - Cartografia]
Abstract

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AMOROSI A.; CAVAZZUTI M.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P.; PANINI F.; PIZZIOLO M. ( 1994 ) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 237140 “Monteacuto Ragazza”. [Cartografia (294) - Cartografia]
Abstract

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CAVAZZUTI M.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P.; PANINI F. ( 1994 ) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 237160 “Loiano”. [Cartografia (294) - Cartografia]
Abstract

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PANINI F.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P.; PIZZIOLO M. ( 1994 ) - Carta Geologica dell'Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N.237100 "Vergato". [Cartografia (294) - Cartografia]
Abstract

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BETTELLI G.; CUOGHI A.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P.; PANINI F.; PIZZIOLO M. ( 1993 ) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 237010 “Savigno”. [Cartografia (294) - Cartografia]
Abstract

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BETTELLI G.; CUOGHI A.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P.; PANINI F.; PIZZIOLO M. ( 1993 ) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 237020 “Montepastore”. [Cartografia (294) - Cartografia]
Abstract

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BERTOLINI G.; BETTELLI G.;BONAZZI U.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P.; PANINI F.; PIZZIOLO M. ( 1993 ) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 237060 “Vedegheto”. [Cartografia (294) - Cartografia]
Abstract

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BETTELLI G.; CIBIN U.; FIORONI C.; PANINI F.; PLESI G. ( 1992 ) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 250040 “Fiumalbo”. [Cartografia (294) - Cartografia]
Abstract

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BETTELLI G.; FIORONI C.; PANINI F.; PIZZIOLO M. ( 1992 ) - Carta geologica dell'Appennino emiliano-romagnolo 1:10.000. Sezione N. 235120 " Boccassuolo". Regione Emilia Romagna, S.EL.CA. Firenze [Cartografia (294) - Cartografia]
Abstract

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Bettelli G.; Fioroni C.; Fregni P.; Panini F. ( 1992 ) - Nuovi dati stratigrafici sulla successione epiligure eo-oligocenica della Val Setta (Appennino bolognese) - Atti Secondo Seminario Cartografia Geologica - MEMORIE DESCRITTIVE DELLA CARTA GEOLOGICA D'ITALIA - n. volume XLVI - pp. da 221 a 227 ISSN: 0536-0242 [Contributo in Atti di convegno (273) - Relazione in Atti di Convegno]
Abstract

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BETTELLI G.;BONAZZI U.; CAVAZZUTI M.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P.; PANINI F. ( 1991 ) - BETTELLI G.,BONAZZI U., CAVAZZUTI M., FIORONI C., FREGNI P., MANTOVANI UGUZZONI M.P. & PANINI F. (1991) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 236070 “Pavullo”. [Cartografia (294) - Cartografia]
Abstract

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BETTELLI G.; BERTOLINI G.; BONAZZI U.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P.; PANINI F. ( 1991 ) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 236030 “Coscogno”. [Cartografia (294) - Cartografia]
Abstract

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BETTELLI G.; BERTOLINI G.; BONAZZI U.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P.; PANINI F. ( 1991 ) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 236040 “Rocca Malatina”. [Cartografia (294) - Cartografia]
Abstract

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BETTELLI G.;BONAZZI U.; CAVAZZUTI M.; FIORONI C.; FREGNI P.; MANTOVANI UGUZZONI M.P.; PANINI F. ( 1991 ) - Carta geologica dell’Appennino emiliano-romagnolo alla scala 1:10.000. Sezione N. 236080 “Zocca”. [Cartografia (294) - Cartografia]
Abstract

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FIORONI C. ; PANINI F. ( 1989 ) - Documentazione biostratigrafica sul Miocene delle sinclinali del Pigneto e di Montebaranzone (Appennino modenese). - MEMORIE DELLA SOCIETA' GEOLOGICA ITALIANA - n. volume 39 - pp. da 297 a 318 ISSN: 0375-9857 [Articolo in rivista (262) - Articolo su rivista]
Abstract

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