Records of Holocene climatic fluctuations and anthropogenic lead input in elemental distribution and radiogenic isotopes (Nd and Pb) in sediments of the Gulf of Lions (Southern France)/ (Record no. 12847)

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fixed length control field 03032nab a2200337 4500
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control field 20220821145716.0
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Personal name Nizou, Jean
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Title Records of Holocene climatic fluctuations and anthropogenic lead input in elemental distribution and radiogenic isotopes (Nd and Pb) in sediments of the Gulf of Lions (Southern France)/
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher, distributor, etc Sage,
Date of publication, distribution, etc 2019.
300 ## - PHYSICAL DESCRIPTION
Pages Vol 29, issue 8, 2019 : (1292-1304 p.).
520 ## - SUMMARY, ETC.
Summary, etc Marine mud belts represent potential continuous high-resolution climatic, environmental and anthropogenic archives. In this study, a geochemical record of the Gulf of Lions mud belt, which receives sediments from the Rhône watershed and to a lesser extent from the Languedoc region, is reported from Core KSGC-31. The effects of natural climatic changes and possible anthropogenic disturbances on Holocene sedimentation were ascertained by analysing sedimentation rates, chemical weathering (Al2O3/K2O) and sediment-source shifts (neodymium isotopic ratios; εNd). Measurements of elemental and isotopic lead were used to trace the source and determine the potential vectors of anthropogenic contaminations over the Holocene. High εNd values, recorded from 9000 to 3000 calibrated annum before present (cal. a BP) and around 1500 and 600 cal. a BP, are interpreted as an increase in sediment transport from the Alpine crystalline massifs to the sea induced by enhanced hydro-sedimentary conditions upstream. During the early and middle Holocene, low and stable weathering conditions were persistent, while the late Holocene was characterized by higher and more fluctuating weathering conditions. Sudden changes in the 206Pb/207Pb ratio observed during the Roman and Medieval periods suggest clear shifts in lead source from a natural Holocene background to late Holocene anthropogenic contaminations. Even though those shifts are coeval with atmospheric lead contaminations from Spain and Germany recorded in several sediment and ice archives, the local origin (the Cévennes) and the fluvial contamination is more likely in these cases. Those findings are contemporaneous with historical mining records in the Cévennes and point to an intensification of the merchant shipping.
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Subject Holocene,
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Subject marine mud belt,
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Subject medieval lead contamination,
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Subject Roman lead contamination,
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Subject sediment source fingerprinting,
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Subject south of France
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Added Entry Personal Name Dennielou, Bernard
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Added Entry Personal Name Révillon, Sidonie
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Added Entry Personal Name Bassetti, Maria-Angela
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Added Entry Personal Name Jouet, Gwenael
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Added Entry Personal Name Berné, Serge
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Added Entry Personal Name Nonnotte, Philippe
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Added Entry Personal Name Céline Liorzou
773 0# - HOST ITEM ENTRY
Host Biblionumber 12756
Host Itemnumber 16504
Place, publisher, and date of publication London: Sage Publication Ltd, 2019.
Title Holocene/
International Standard Serial Number 09596836
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier https://doi.org/10.1177/0959683619846973
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Koha item type Articles
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