Activity of isotopes of U, Th and Pa versus depth in bottom sediments from Core ML1_66
Arslanov, K A;Barash, Max S;Kuznetsov, Yury V
Description
A sediment core from the European Basin with alternation of biogenic calcareous oozes and terrigenous sediments is studied by several methods. Isotopic age is determined by 230Th-ex and 231Pa-ex and by the radiocarbon method. Surface water paleotemperatures are reconstructed from complexes of planktic foraminifera and oxygen isotope ratios in their shells, and the ratio of biogenic and terrigenous components are investigated. Stages 1-8 of the oxygen-isotope scale are identified. Fluctuations in paleooceanic conditions in the area of coring are discussed.
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Publication Details
Subfield
Geochemistry and Petrology
Field
Earth and Planetary Sciences
Domain
Physical Sciences
Confidence Score
49%
Source
Scholar Data Model
Keywords
DEPTH, sediment/rockDepth, top/minDepth, bottom/maxUranium-238Uranium-238, standard deviationUranium-234Uranium-234, standard deviationThorium-230 excessThorium-230 excess, standard deviationProtactinium-231 excessProtactinium-231 excess, standard deviationCalcium carbonateIronThorium-230 excess, decay-correctedThorium-230 excess, decay-corrected, standard deviationProtactinium-231 excess, decay-correctedGravity corerRadiometric countingCalculatedWet chemistryArchive of Ocean Data (ARCOD)