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Cipollari, P.
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Cipollari, P.
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- PublicationRestrictedEasternmost Mediterranean evidence of the Zanclean flooding event and subsequent surface uplift: Adana Basin, southern Turkey(2012)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ;Cipollari, P.; Università Roma Tre ;Cosentino, D.; Università Roma Tre ;Radeff, G.; Università Roma Tre ;Schildgen, T. F.; Universitat Potsdam, Potsdam, Germany ;Faranda, C.; Università Roma Tre ;Grossi, F.; Università Roma Tre ;Gliozzi, E.; Università Roma Tre ;Smedile, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Gennari, R.; Università di Parma ;Darbas, G.; Sutcu imam Universitesi, Kahramanmaras, Turkey ;Dudas, F. O.; Institute of Technology, Cambridge, USA ;Gurbuz, K.; Cukurova Universitesi, Adana, Turkey ;Nazik, A.; Cukurova Universitesi, Adana, Turkey ;Hechtler, H.; Deutsches GeoForschungsZentrum (GFZ), Potsdam, Germany; ; ; ; ; ; ; ; ; ; ; ; ; According to the literature, the Adana Basin, at the easternmost part of the Mediterranean Basin in southern Turkey, records the Pliocene stage with shallow-marine to fluvial deposits. Our micropalaeontological analysis of samples from the Adana Basin reveal Late Lago–Mare biofacies with Paratethyan ostracod assemblages pertaining to the Loxocorniculina djafarovi zone. Grey clays rich in planktonic foraminifera lie above the Lago–Mare deposits. Within the grey clays, the continuous occurrence of the calcareous nannofossil Reticulofenestra zancleana and the base of the Reticulofenestra pseudoumbilicus paracme points to an Early Zanclean age (5.332–5.199 Ma). Both ostracod and benthic foraminifera indicate epibathyal and bathyal environments. 87Sr/86Sr measurements on planktonic and benthic foraminifera fall below the mean global ocean value for the Early Zanclean, indicating potentially insufficient mixing of low 87Sr/86Sr Mediterranean brackish ‘Lago–Mare’ water with the global ocean in the earliest Pliocene.We utilize the ages and palaeodepths of the marine sediments together with their modern elevations to determine uplift rates of the Adana Basin of 0.06 to 0.13 mm a21 since 5.2–5.3 Ma (total uplift of 350–650 m) from surface data, and 0.02–0.13 mm a21 since c. 1.8 Ma (total uplift of 30–230 m) from subsurface data.363 39 - PublicationRestrictedOrbitally forced paleoenvironmental and paleoclimate changes in the late postevaporitic Messinian of the central Mediterranean Basin(2012)
; ; ; ; ; ; ; ; ;Cosentino, D.; Dipartimento di Scienze Geologiche, Università degli Studi Roma Tre, Largo San Leonardo Murialdo, 1-00146 Rome, Italy ;Bertini, A.; Dipartimento di Scienze della Terra, Università degli Studi di Firenze, Via G. La Pira, 4-50121 Firenze, Italy ;Cipollari, P.; Dipartimento di Scienze Geologiche, Università degli Studi Roma Tre, Largo San Leonardo Murialdo, 1-00146 Rome, Italy ;Florindo, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Gliozzi, E.; Dipartimento di Scienze Geologiche, Università degli Studi Roma Tre, Largo San Leonardo Murialdo, 1-00146 Rome, Italy ;Grossi, F.; Dipartimento di Scienze Geologiche, Università degli Studi Roma Tre, Largo San Leonardo Murialdo, 1-00146 Rome, Italy ;Lo Mastro, S.; Dipartimento di Scienze Geologiche, Università degli Studi Roma Tre, Largo San Leonardo Murialdo, 1-00146 Rome, Italy ;Sprovieri, M.; Istituto per l’Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Via del Mare 3, 91021 Torretta Granitola, Mazara (TP), Italy; ; ; ; ; ; ;Paleoenvironmental and paleoclimate changes that occurred during the late postevaporitic stage of the Mediterranean Basin in the Messinian foreland domain of the Adriatic region offer a new perspective on the relationship between orbital forcing and climate response. The magnetic susceptibility record of the Fonte dei Pulcini A section (Maiella Mountains, Italy) allows us to orbitally tune the record between 5.394 and 5.336 Ma and to temporally constrain the paleoenvironmental and paleoclimate changes evidenced by quantitative paleontological (palynomorphs, ostracods, and calcareous nannofossils), stable isotope (δ18O and δ13C), and X-ray diffraction (XRD) analyses. The base of the Fonte dei Pulcini A section is characterized by Paratethyan ostracods and dinocysts, which point to the late Messinian Lago-Mare biofacies (Loxocorniculina djafarovi zone) of the Mediterranean Messinian stratigraphy. From paleontological and geochemical (δ18O) analyses, there is no evidence of a marine incursion in the Fonte dei Pulcini A section. The major changes in terms of paleodepth, paleosalinity, evaporation versus precipitation, aridity versus humidity, and reworking processes occurred in the upper part of the Fonte dei Pulcini A section, during the last Messinian insolation cycle (i-cycle 511/512), which is characterized by high-amplitude oscillations. In contrast, the lower part of the Fonte dei Pulcini A section, which was deposited during relatively low-amplitude insolation cycles, is characterized by more stable environmental conditions. Comparing summer insolation with the paleoenvironmental changes at the Fonte dei Pulcini A section, we identify delays of several thousands of years between orbital forcing and climate response.2236 31 - PublicationRestricted‘‘Earliest Zanclean age for the Colombacci and uppermost Di Tetto formations of the « latest Messinian » northern Apennines: New palaeoenvironmental data from the Maccarone section (Marche Province, Italy)’’ by Popescu et al. (2007) Geobios 40 (359–373)(2008)
; ; ; ; ; ; ; ; ; ; ; ; ;Roveri, M.; Dipartimento di Scienze della Terra, Università di Parma, Via G.P. Usberti, 157/A, 43100 Parma, Italy ;Bertini, A.; Dipartimento di Scienze della Terra, Università di Firenze, Via La Pira 4, 50121 Firenze, Italy ;Cipollari, P.; Dipartimento di Scienze Geologiche, Università Roma-Tre, L.go S. Leonardo Murialdo 1, 00146 Roma, Italy ;Cosentino, D.; Dipartimento di Scienze Geologiche, Università Roma-Tre, L.go S. Leonardo Murialdo 1, 00146 Roma, Italy ;Di Stefano, A.; Dipartimento di Scienze Geologiche, Università di Catania, Corso Italia 55, 95129 Catania, Italy ;Florindo, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Gennari, R.; Dipartimento di Scienze della Terra, Università di Parma, Via G.P. Usberti, 157/A, 43100 Parma, Italy ;Gliozzi, E.; Dipartimento di Scienze Geologiche, Università Roma-Tre, L.go S. Leonardo Murialdo 1, 00146 Roma, Italy ;Grossi, F.; Dipartimento di Scienze Geologiche, Università Roma-Tre, L.go S. Leonardo Murialdo 1, 00146 Roma, Italy ;Iaccarino, S.; Dipartimento di Scienze della Terra, Università di Parma, Via G.P. Usberti, 157/A, 43100 Parma, Italy ;Lugli, S.; Dipartimento di Scienze della Terra, Università di Modena e Reggio Emilia, Piazza S. Eufemia 19, 41100 Modena, Italy ;Manzi, V.; Dipartimento di Scienze della Terra, Università di Parma, Via G.P. Usberti, 157/A, 43100 Parma, Italy; ; ; ; ; ; ; ; ; ; ; Two possible alternative interpretations of the claimed Zanclean age (Popescu et al., 2007) of two historical lithostratigraphic units of the Northern Apennines, usually referred to as Late Messinian in age and recording the so called Lagomare final event of the Messinian salinity crisis (MSC), are here discussed. The wrong age attribution of the Colombacci and "tetto" Fms. is ruled out based on data from the Maccarone and other sections showing that the Colombacci-Argille Azzurre Fm. boundary is basin wide synchronous and coincident with the Miocene-Pliocene boundary as far as it has been formally defined in the Eraclea Minoa GSSP. Alternatively, the opportunity of emending the Zanclean GSSP to a stratigraphically lower horizon recording the first evidence of marine influences in the Mediterranean following the MSC peak, seems not suitable, as (1) the marine signature of uppermost Messinian deposits is weak and still controversial and (2) no significant bio- and magnetostratigraphic events, well chronologically defined and recognizable at a global scale appear to be available to such a purpose.259 23 - PublicationRestrictedAge of the Corsica–Sardinia rotation and Liguro–Provençal Basin spreading: new paleomagnetic and Ar/Ar evidence(2002-04-01)
; ; ; ; ; ; ; ;Speranza, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Villa, I. M.; Isotopengeologie, Erlachstrasse 9a, 3012 Berne, Switzerland ;Sagnotti, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Florindo, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Cosentino, D.; Dipartimento di Scienze Geologiche, Università di Roma Tre, Largo S. L. Murialdo 1, 00146 Rome, Italy ;Cipollari, P.; Dipartimento di Scienze Geologiche, Università di Roma Tre, Largo S. L. Murialdo 1, 00146 Rome, Italy ;Mattei, M.; Dipartimento di Scienze Geologiche, Università di Roma Tre, Largo S. L. Murialdo 1, 00146 Rome, Italy; ; ; ; ; ; The age of spreading of the Liguro–Provençal Basin is still poorly constrained due to the lack of boreholes penetrating the whole sedimentary sequence above the oceanic crust and the lack of a clear magnetic anomaly pattern. In the past, a consensus developed over a fast (20.5–19 Ma) spreading event, relying on old paleomagnetic data from Oligo–Miocene Sardinian volcanics showing a drift-related 30° counterclockwise (CCW) rotation. Here we report new paleomagnetic data from a 10-mthick lower–middle Miocene marine sedimentary sequence from southwestern Sardinia. Ar/Ar dating of two volcanoclastic levels in the lower part of the sequence yields ages of 18.94±0.13 and 19.20±0.12 Ma (lower–mid Burdigalian). Sedimentary strata below the upper volcanic level document a 23.3±4.6° CCW rotation with respect to Europe, while younger strata rapidly evolve to null rotation values. A recent magnetic overprint can be excluded by several lines of evidence, particularly by the significant difference between the in situ paleomagnetic and geocentric axial dipole (GAD) field directions. In both the rotated and unrotated part of the section, only normal polarity directions were obtained. As the global magnetic polarity time scale (MPTS) documents several geomagnetic reversals in the Burdigalian, a continuous sedimentary record would imply that (unrealistically) the whole documented rotation occurred in few thousands years only. We conclude that the section contains one (or more) hiatus(es), and that the minimum age of the unrotated sediments above the volcanic levels is unconstrained. Typical back-arc basin spreading rates translate to a duration ≥3 Ma for the opening of the Liguro–Provençal Basin. Thus, spreading and rotation of Corsica–Sardinia ended no earlier than 16 Ma (early Langhian). A 16–19 Ma, spreading is corroborated by other evidences, such as the age of the breakup unconformity in Sardinia, the age of igneous rocks dredged west of Corsica, the heat flow in the Liguro–Provençal Basin, and recent paleomagnetic data from Sardinian sediments and volcanics. Since Corsica was still rotating/drifting eastward at 16 Ma, it presumably induced significant shortening to the east, in the Apennine belt. Therefore, the lower Miocene extensional basins in the northern Tyrrhenian Sea and margins can be interpreted as synorogenic "intra-wedge" basins due to the thickening and collapse of the northern Apennine wedge.512 55 - PublicationRestrictedThe Miocene tectono-sedimentary evolution of the southern Tyrrhenian Sea: stratigraphy, structural and paleomagnetic data from the on-shore Amantea basin (Calabrian Arc, Italy)(2002)
; ; ; ; ; ; ; ;Mattei, M.; Dipartimento di Scienze Geologiche, Università di ‘‘Roma Tre’’, Largo San Leonardo Murialdo 1, 00146 Rome, Italy ;Cipollari, P.; Dipartimento di Scienze Geologiche, Università di ‘‘Roma Tre’’, Largo San Leonardo Murialdo 1, 00146 Rome, Italy ;Cosentino, D.; Dipartimento di Scienze Geologiche, Università di ‘‘Roma Tre’’, Largo San Leonardo Murialdo 1, 00146 Rome, Italy ;Argentieri, A.; Dipartimento di Scienze Geologiche, Università di ‘‘Roma Tre’’, Largo San Leonardo Murialdo 1, 00146 Rome, Italy ;Rossetti, F.; Dipartimento di Scienze Geologiche, Università di ‘‘Roma Tre’’, Largo San Leonardo Murialdo 1, 00146 Rome, Italy - Provincia di Roma-Servizio Geologico, Difesa del Suolo, Rome, Italy ;Speranza, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Di Bella, L.; Dipartimento di Scienze della Terra, Università La Sapienza, Rome, Italy; ; ; ; ; ; We report on new stratigraphic, palaeomagnetic and anisotropy of magnetic susceptibility (AMS) results from the Amantea basin, located on-shore along the Tyrrhenian coast of the Calabrian Arc (Italy). The Miocene Amantea Basin formed on the top of a brittlely extended upper plate, separated from a blueschist lower plate by a low-angle top-to-the-west extensional detachment fault. The stratigraphic architecture of the basin is mainly controlled by the geometry of the detachment fault and is organized in several depositional sequences, separated by major unconformities. The first sequence (DS1) directly overlaps the basement units, and is constituted by Serravallian coarse-grained conglomerates and sandstones. The upper boundary of this sequence is a major angular unconformity locally marked by a thick palaeosol (type 1 sequence boundary). The second depositional sequence DS2 (middle Tortonian-early Messinian) is mainly formed by conglomerates, passing upwards to calcarenites, sandstones, claystones and diatomites. Finally, Messinian limestones and evaporites form the third depositional sequence (DS3). Our new biostratigraphic data on the Neogene deposits of the Amantea basin indicate a hiatus of 3 Ma separating sequences DS1 and DS2. The structural architecture of the basin is characterized by faulted homoclines, generally westward dipping, dissected by eastward dipping normal faults. Strike-slip faults are also present along the margins of the intrabasinal structural highs. Several episodes of syn-depositional tectonic activity are marked by well-exposed progressive unconformities, folds and capped normal faults. Three main stages of extensional tectonics affected the area during Neogene-Quaternary times: (1) Serravallian low-angle normal faulting; (2) middle Tortonian high-angle syn-sedimentary normal faulting; (3) Messinian-Quaternary high-angle normal faulting. Extensional tectonics controlled the exhumation of high-P/low-T metamorphic rocks and later the foundering of the Amantea basin, with a constant WNW-ESE stretching direction (present-day coordinates), defined by means of structural analyses and by AMS data. Palaeomagnetic analyses performed mainly on the claystone deposits of DSl show a post-Serravallian clockwise rotation of the Amantea basin. The data presented in this paper constrain better the overall timing, structure and kinematics of the early stages of extensional tectonics of the southern Tyrrhenian Sea. In particular, extensional basins in the southern Tyrrhenian Sea opened during Serravallian and evolved during late Miocene. These data confirm that, at that time, the Amantea basin represented the conjugate extensional margin of the Sardinian border, and that it later drifted south-eastward and rotated clockwise as a part of the Calabria-Peloritani terrane.195 28