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Investigation of climate change and history of lead deposition using soil archives

Pampura, Tatiana and Demkin, Vitaly A. and Probst, Anne Investigation of climate change and history of lead deposition using soil archives. (2008) Mineralogical Magazine, vol. 7 (n° 1). pp. 341-343. ISSN 0026-461X

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Official URL: http://dx.doi.org/10.1180/minmag.2008.072.1.341

Abstract

Our study focused on the investigation of climate change and the fate of lead in soils from the Low Volga region of Russia over 3500 years. We used a comparative analysis of the modern soils and palaeosols preserved under burial mounds, which date back to the Middle Ages and the Early Iron and Bronze Ages. A climate reconstruction showed periodic changes, with the most humid climate conditions occurring during Golden Horde period. However, we could not find any consistent changes in Pb concentration and profile distribution following the climate change. We observed a clear difference in Pb isotopic ratios between the lower and upper horizons both for the modern and buried profiles, reflecting the influence of atmospheric lead depositions. However, there is no statistically significant difference in Pb isotopic ratios between the upper horizons of buried and modern soils (except modern soils collected in the vicinity of a motorway). This means that either anthropogenic input due to long range air transport was insignificant, or that airborne anthropogenic lead and natural airborne lead have similar isotopic composition.

Item Type:Article
Additional Information:Thanks to The Mineralogical Society editor. The definitive version is available at http://www.minersoc.org/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > Russian academy of sciences (RUSSIA)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By: Florence Amor
Deposited On:25 Jun 2010 14:16

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