Atypical Mo isotope signatures in eastern Mediterranean sediments

Reitz, Anja, Wille, M., Nägler, T. F. and De Lange, G. J. (2007) Atypical Mo isotope signatures in eastern Mediterranean sediments Chemical Geology, 245 (1/2). pp. 1-8. DOI 10.1016/j.chemgeo.2007.06.018.

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Suboxic sapropel S1 sediments of the eastern Mediterranean carry an untypically light δ98/95Mo signal, being even lighter than oxic Mn-enriched sediments and Mn-crusts/nodules, which were previously thought to carry the lightest Mo isotope values. The evaluation and comparison of oxic S1, diagenetically overprinted oxic S1, and suboxic S1 sediments indicates that this light isotope signal is primarily an oxic signal that has been overprinted by secondary diagenetic processes occurring after sediment burial. Such secondary processes bear the potential of additional Mo isotope fractionation in particular in non-steady state diagenetic environments that involve the discontinuous re-location of the redox boundary.

Document Type: Article
Keywords: Molybdenum, Isotopes, Non-steady state diagenesis, Marine sediments
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
Refereed: Yes
DOI etc.: 10.1016/j.chemgeo.2007.06.018
ISSN: 0009-2541
Date Deposited: 03 Dec 2008 16:52
Last Modified: 06 Dec 2017 08:51

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