Trace element distributions in soils developed in loess deposits from northern France

Autor: C. Schvartz, Nicolas Proix, Hervé Fourrier, Denis Baize, Thibault Sterckeman, Jean Carignan, Francis Douay
Rok vydání: 2005
Předmět:
Zdroj: European Journal of Soil Science. 57:392-410
ISSN: 1351-0754
DOI: 10.1111/j.1365-2389.2005.00750.x
Popis: A pedo-geochemical survey was carried out in the Nord-Pas de Calais region (France) on soils developed in loess deposits. Total concentrations of Al, Fe and 18 trace elements, as well as common soil characteristics, were determined in samples from 52 surface and 97 deep horizons developed in these loess deposits. The Pb isotopic composition was determined in two sola. The composition of deep horizons, compared with that of the upper continental crust, with that of horizons developed from 21 other sedimentary rocks from the region and with that of loess from various parts of the world, confirms that loess from the Nord-Pas de Calais region derives from multi-recycled and well-mixed ancient sedimentary rocks. Correlation analysis shows that least mobile (i.e. ionic potential (Z/r) is between 3 and 7) geogenic elements (Bi, Co, Cr, Cu, In, Ni, Pb, Sn, Tl, V, Zn) are associated with the fraction
Databáze: OpenAIRE