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

Boretto, G. et al. (2017) The loess deposits of Buca Dei Corvi section (Central Italy): Revisited. CATENA, 151, pp. 225-237. (doi: 10.1016/j.catena.2017.01.001)

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Loess deposits have been described in the past for the upper section of Buca Dei Corvi succession (Central Italy). In this paper the deposits were 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 transport was also responsible of deposition of carbonate which 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.

Item Type:Articles
Additional Information:This research has been funded by University of Pisa (Fondi di Ateneo, Leader G. Zanchetta). GB thanks the Ministero degli Affari Esteri of Italy for supporting her research with a six-months grant. SUERC is funded by a Consortium of Scottish Universities and NERC
Glasgow Author(s) Enlighten ID:Fallick, Professor Anthony
Authors: Boretto, G., Zanchetta, G., Ciulli, L., Bini, M., Fallick, A. E., Lezzerini, M., Colonese, A. C., Zembo, I., Trombino, L., Regattieri, E., and Sarti, G.
College/School:College of Science and Engineering > Scottish Universities Environmental Research Centre
Journal Name:CATENA
ISSN (Online):1872-6887
Published Online:06 January 2017

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