In search of the Burdigalian GSSP: new evidence from the Contessa Section (Italy)

Fabbrini, Alessio; Baldassini, Niccolò; Caricchi, Chiara; Foresi, Luca Maria; Sagnotti, Leonardo; Dinarès-Turell, Jaume; Stefano, Agata Di; Lirer, Fabrizio; Menichetti, Marco; Winkler, Aldo; Distefano, Salvatore

doi:10.3301/ijg.2019.07

Cited by 9 publications

(7 citation statements)

References 72 publications

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“…Helicosphaera carteri has been a main component of the helicoliths assemblages since the Early Miocene-e.g., [58,71,72]. On the contrary, the presence of Helicosphaera sellii is traditionally assigned to the early Pliocene.…”

Section: Calcareous Nannofossils In the Tvcz Sectionmentioning

confidence: 99%

“…In the TVCZ Section, they are represented by Amaurolithus primus, A. delicatus, and Nickilithus amplificus. These taxa are present from the base of the section and are characterized by a fluctuating trend.The remarkably highly fluctuating presence of Lithostromation perdurum is noteworthy and already documented within an equivalent stratigraphic interval in the Sorbas Basin[12].According to our results, the TVCZ section should be younger than the first occurrence of Nicklithus amplificus (thus falling within Zone MNN11c of Di Stefano et al[58]), which is considered a sufficiently reliable event in the Messinian, with an attributed age of 6.69 My[62].Helicosphaera carteri has been a main component of the helicoliths assemblages since the Early Miocene-e.g.,[58,71,72]. On the contrary, the presence of Helicosphaera sellii is traditionally assigned to the early Pliocene.…”

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confidence: 99%

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Toward an Astrochronology-Based Age-Model for a Messinian Pre-Evaporitic Succession: The Example of Torrente Vaccarizzo Section in Sicily (Italy)

Maniscalco

Forzese

Barbagallo

et al. 2023

JMSE

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Tectonic, paleoenvironmental, and paleoclimatic unstable conditions preceding the onset of the Messinian Salinity Crisis (MSC) highly affected marine life. Changes in calcareous plankton association are overall registered in the Mediterranean. They consist of a general transition from abundant and well-diversified planktonic associations to strictly oligotypic assemblages that precede their total disappearance at the onset of evaporitic precipitation. In this work, an accurate quantitative analysis of calcareous plankton, both foraminifers and nannofossils, has been carried out in the Torrente Vaccarizzo Section of Sicily (southern Italy). The aim is to independently define a chronostratigraphic pattern of bioevents preceding the MSC in the absence of magnetostratigraphic or radiometric constraints. The fluctuating abundance of the genus Orbulina fits well with the 100 ky Eccentricity maxima, and it is successfully applied to build an astronomically calibrated age-model for the section. On this basis, all the biohorizons have been recalibrated and discussed with regard to the previous literature. Abundant influxes of selected species demonstrated to be of local significance since they are highly affected by paleoenvironmental and paleoclimatic conditions. A chronological sequence of foraminifers and nannofossils events marks the onset of the MSC with a derived age of 5.957 My, which agrees well with previous findings from other Mediterranean sections. This methodology and the new biostratigraphic events may be useful for future studies on pre-evaporitic successions of the Mediterranean.

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Section: Calcareous Nannofossils In the Tvcz Sectionmentioning

confidence: 99%

mentioning

confidence: 99%

Toward an Astrochronology-Based Age-Model for a Messinian Pre-Evaporitic Succession: The Example of Torrente Vaccarizzo Section in Sicily (Italy)

Maniscalco

Forzese

Barbagallo

et al. 2023

JMSE

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“…Possible reasons for this include the limited number of sections that span this time interval without large hiatuses, as evidenced by the absence of base-Burdigalian and base-Langhian Global Boundary Stratotype Sections and Points (GSSPs) (Foresi et al, 2011;Iaccarino et al, 2011;Gradstein et al, 2012;Foresi et al, 2014;Fabbrini et al, 2019;Gradstein et al , 2020).…”

Section: Early To Mid-miocene Climatementioning

confidence: 99%

“…While the details of the climatic events of the OMT, MCO and the MMCT are becoming relatively well known, regional and global climate regimes between the OMT and the MCO (∼23 to ∼17 Ma) are currently poorly investigated despite modern to near-future CO 2 concentrations (Steinthorsdottir et al, 2020). Possible reasons for this include the limited number of sections that span this time interval without large hiatuses, as evidenced by the absence of base-Burdigalian and base-Langhian Global Boundary Stratotype Sections and Points (GSSPs) (Fabbrini et al, 2019;Foresi et al, 2011Foresi et al, , 2014Iaccarino et al, 2011;Gradstein et al, 2012Gradstein et al, , 2020.…”

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confidence: 99%

Early Miocene Intensification of the North African Hydrological Cycle: Multi‐Proxy Evidence From the Shelf Carbonates of Malta

Zammit

Lear

Samankassou

et al. 2022

Paleoceanog and Paleoclimatol

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During the Miocene (23.0–5.3 Ma) North Africa experienced both humid and arid intervals, but the underlying cause of these transitions is unknown. Earth's climate was characterized by a unipolar icehouse with a dynamic Antarctic ice sheet, which may have influenced regional hydrology through atmospheric teleconnections. However, the Miocene also witnessed the restriction of the Mesopotamian Seaway, which may have had significant climatic impacts. The Maltese il‐Blata section (Central Mediterranean) comprises Late Oligocene to Early Miocene marine deposits previously used to constrain the timing of the Mesopotamian Seaway restriction using the εNd tracer. The location of this section also makes it sensitive to climatic changes in the North African region, and biogeochemical changes in the central Mediterranean. Here, we present lithological and geochemical records of the il‐Blata section. We find a marked shift in lithology and an increase in sedimentation rate coeval with the Early Miocene (∼19–20 Ma) restriction of the Mesopotamian Seaway. Concomitant changes in bulk sediment CaCO3, Sr/Ca, K/Al, Ti/Al, Zr/Al, and Si/Ti support a major humid climate transition and associated intensification of river systems over western North Africa. We propose that these changes in North African hydroclimate reflect either a tipping point effect in a gradually warming global climate, or are the result of the initial restriction of the Mesopotamian Seaway, perhaps through consequent changes in Atlantic Meridional Overturning Circulation and the West African Monsoon. We also suggest the restriction of the Mesopotamian Seaway inhibited phosphorite deposition at low latitudes.

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“…Lampedusa lies on the northern edge of the Tunisian continental shelf and represents a small emerged portion of the Pelagian Block [71,[81][82][83]. The Pelagian Block outcrops in south-eastern Sicily (Hyblean foreland) and the onshore and offshore Neogene-Quaternary geodynamic evolution has been widely studied [48,[84][85][86]. The Hyblean Plateau represents the foreland domain of the Apennine-Maghrebine fold and thrust belt in Sicily [87][88][89][90][91][92][93][94] associated with the Mesozoic collision between African and European plates [95].…”

Section: Geological Setting Of the Sicily Channel Italymentioning

confidence: 99%

3D Flooding Maps as Response to Tsunami Events: Applications in the Central Sicilian Channel (Southern Italy)

Distefano

Baldassini

Barbagallo

et al. 2022

JMSE

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The assessment of the vulnerability of a site to tsunami events should take into consideration the geomorphological setting, which is strongly determined by the stratigraphic framework of the area. Lampedusa island is located in the central portion of the Sicilian Channel (Mediterranean Sea, Italy), where a significant incidence of tsunamis (with wave runup above 15 m) caused by earthquakes and submarine landslides has been historically documented. This work shows the geomorphological and stratigraphic differences between the western and south-eastern sectors of Lampedusa island. This update to the geological characterization of the island was used to create 3D flooding maps according to runup steps of 5 m, 10 m, and 15 m, thus showing a homogeneous involvement of the south-eastern sector of Lampedusa. Furthermore, our study aims to provide a geomorphological-stratigraphic base for a mathematical-statistical model to create coastal flooding maps due to tsunami waves. As such, this tool is useful for evaluation of strategic infrastructure for the security of the island and the improvement of risk management in civil protection.

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In search of the Burdigalian GSSP: new evidence from the Contessa Section (Italy)

Abstract: In search of the Burdigalian GSSP: new evidence from the Contessa Section (Italy).

Cited by 9 publications

References 72 publications

Toward an Astrochronology-Based Age-Model for a Messinian Pre-Evaporitic Succession: The Example of Torrente Vaccarizzo Section in Sicily (Italy)

Toward an Astrochronology-Based Age-Model for a Messinian Pre-Evaporitic Succession: The Example of Torrente Vaccarizzo Section in Sicily (Italy)

Early Miocene Intensification of the North African Hydrological Cycle: Multi‐Proxy Evidence From the Shelf Carbonates of Malta

3D Flooding Maps as Response to Tsunami Events: Applications in the Central Sicilian Channel (Southern Italy)

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