Trace elements in marine and fresh-water argillaceous sediments

Details Trace elements in marine and fresh-water argillaceous sediments Trace elements in marine and fresh-water argillaceous sediments

Jun 1963

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1963gecoa..27..669p&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 27, Issue 6, pp.669-694

Mathematics

Logic

9

Scientific paper

The trace elements B, Co, Cr, Cu, Ga, Ni, Pb, V and Zn were studied in 66 samples of both modern and ancient marine and fresh-water argillaceous sediments to determine their value as environmental discriminators. Samples of each group were widely scattered geographically and represent widely varying source areas, climates, tectonic conditions and rates of sedimentation. B, Cr, Cu, Ga, Ni and V are significantly more abundant in marine than in fresh-water argillaceous sediments. A discriminant function based on B and V alone and derived from 33 modern sediments decisively separated the modern marine and modern fresh-water sediments. When this discriminant function was applied to ancient sediments whose environment of deposition had been independently established by geologic evidence, 28 out of 33 sediments were correctly classified. Similar results were obtained using six elements with graphical methods.

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