Lateglacial to Holocene trace element record (Ba, Mg, Sr) from Corchia Cave (Apuan Alps, central Italy): Paleoenvironmental implications

E Regattieri; G Zanchetta; RN Drysdale; I Isola; JC Hellstrom; L Dallai

Journal article

Lateglacial to Holocene trace element record (Ba, Mg, Sr) from Corchia Cave (Apuan Alps, central Italy): Paleoenvironmental implications

E Regattieri, G Zanchetta, RN Drysdale, I Isola, JC Hellstrom, L Dallai

Journal of Quaternary Science | Published : 2014

DOI: 10.1002/jqs.2712

Abstract

In this study, Mg/Ca, Sr/Ca and Ba/Ca ratios in a Lateglacial to Holocene stalagmite (CC26) from Corchia Cave (central Italy) are compared with stable isotope data to define palaeohydrological changes. For most of the record, the trace element ratios show small absolute variability but similar patterns, which are also consistent with stable isotope variations. Higher trace element-to-calcium values are interpreted as responses to decreasing moisture, inducing changes in the residence time of percolation, producing prior calcite precipitation and/or variations in the hydrological routing. Statistically meaningful levels of covariability were determined using anomalies of Mg/Ca, δ18O and δ13C...

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University of Melbourne Researchers

Russell Drysdale Author

John Hellstrom Author

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Grants

Awarded by ARC

Funding Acknowledgements

Financed by the ARC, grant No. DP110102185. E.R. was supported by a PhD grant of the School of Graduate Studies Galileo Galilei (University of Pisa). We thank the Federazione Speleologica Toscana and Parco Apuane for supporting our Corchia work. We thank C. Day and an anonymous reviewer for suggestions and comments that significantly improved the first version of the manuscript.