The loess deposits of Buca Dei Corvi section (Central Italy): Revisited

Gabriella Boretto; Giovanni Zanchetta; Lorenzo Ciulli; Monica Bini; Anthony Fallick; Marco Lezzerini; Andre Carlo Colonese; Irene Zembo; Luca Trombini; Eleonora Rigattieri; Giavanni Sarti

doi:10.1016/j.catena.2017.01.001

The loess deposits of Buca Dei Corvi section (Central Italy): Revisited

Gabriella Boretto, Giovanni Zanchetta, Lorenzo Ciulli, Monica Bini, Anthony Fallick, Marco Lezzerini, Andre Carlo Colonese, Irene Zembo, Luca Trombini, Eleonora Rigattieri, Giavanni Sarti

Archaeology

Research output: Contribution to journal › Article › peer-review

Abstract

Loess deposits have been described in the past for the upper section of Buca Dei Corvi succession (Central Italy).
In this paper the depositswere re-analysed to clarify the depositional environment and to attempt a paleoclimate
reconstruction. Two radiocarbon dates on pedogenic carbonate constrain the ages to the Late Glacial, and are consistent with previous OSL dating of the top of the succession. The non-marine mollusc assemblage shows typical character of cold and dry climatic conditions, testified by strong oligotypical composition. Mineralogy and geochemistry of the sediments indicate the abundant presence of exotic quartz mineral which can be explained only by wind transport. Probably,wind transportwas also responsible of deposition of carbonatewhich then dissolved and re-precipitated producing pedogenic concretions. Stable isotopes (13C/12C and 18O/16O ratios) of the concretions are consistent with a climate drier than present conditions, with an environment characterized by sparse vegetation.

Original language	English
Pages (from-to)	225-237
Journal	Catena
Volume	151
Early online date	6 Jan 2017
DOIs	https://doi.org/10.1016/j.catena.2017.01.001
Publication status	Published - Apr 2017

Bibliographical note

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10.1016/j.catena.2017.01.001

BORETTO ET AL., 2017_CATENA
© 2016 Elsevier B.V. All rights reserved.
Accepted author manuscript, 1.4 MBLicence: CC BY-NC-ND

Cite this

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title = "The loess deposits of Buca Dei Corvi section (Central Italy): Revisited",

abstract = "Loess deposits have been described in the past for the upper section of Buca Dei Corvi succession (Central Italy).In this paper the depositswere re-analysed to clarify the depositional environment and to attempt a paleoclimatereconstruction. Two radiocarbon dates on pedogenic carbonate constrain the ages to the Late Glacial, and are consistent with previous OSL dating of the top of the succession. The non-marine mollusc assemblage shows typical character of cold and dry climatic conditions, testified by strong oligotypical composition. Mineralogy and geochemistry of the sediments indicate the abundant presence of exotic quartz mineral which can be explained only by wind transport. Probably,wind transportwas also responsible of deposition of carbonatewhich then dissolved and re-precipitated producing pedogenic concretions. Stable isotopes (13C/12C and 18O/16O ratios) of the concretions are consistent with a climate drier than present conditions, with an environment characterized by sparse vegetation.",

author = "Gabriella Boretto and Giovanni Zanchetta and Lorenzo Ciulli and Monica Bini and Anthony Fallick and Marco Lezzerini and Colonese, {Andre Carlo} and Irene Zembo and Luca Trombini and Eleonora Rigattieri and Giavanni Sarti",

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AU - Boretto, Gabriella

AU - Zanchetta, Giovanni

AU - Ciulli, Lorenzo

AU - Bini, Monica

AU - Fallick, Anthony

AU - Lezzerini, Marco

AU - Colonese, Andre Carlo

AU - Zembo, Irene

AU - Trombini, Luca

AU - Rigattieri, Eleonora

AU - Sarti, Giavanni

PY - 2017/4

Y1 - 2017/4

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AB - Loess deposits have been described in the past for the upper section of Buca Dei Corvi succession (Central Italy).In this paper the depositswere re-analysed to clarify the depositional environment and to attempt a paleoclimatereconstruction. Two radiocarbon dates on pedogenic carbonate constrain the ages to the Late Glacial, and are consistent with previous OSL dating of the top of the succession. The non-marine mollusc assemblage shows typical character of cold and dry climatic conditions, testified by strong oligotypical composition. Mineralogy and geochemistry of the sediments indicate the abundant presence of exotic quartz mineral which can be explained only by wind transport. Probably,wind transportwas also responsible of deposition of carbonatewhich then dissolved and re-precipitated producing pedogenic concretions. Stable isotopes (13C/12C and 18O/16O ratios) of the concretions are consistent with a climate drier than present conditions, with an environment characterized by sparse vegetation.

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