Atypical Mo isotope signatures in eastern Mediterranean sediments

Reitz, Anja; Wille, Martin; Nägler, Thomas; de Lange, Gert J (2007). Atypical Mo isotope signatures in eastern Mediterranean sediments. Chemical geology, 245(1-2), pp. 1-8. Elsevier 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.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences
08 Faculty of Science > Institute of Geological Sciences > Isotope Geology

UniBE Contributor:

Wille, Martin and Nägler, Thomas

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

0009-2541

Publisher:

Elsevier

Language:

English

Submitter:

Thomas Nägler

Date Deposited:

09 May 2014 20:22

Last Modified:

20 Dec 2014 18:47

Publisher DOI:

10.1016/j.chemgeo.2007.06.018

Uncontrolled Keywords:

Molybdenum; Isotopes; Non-steady state diagenesis; Marine sediments

BORIS DOI:

10.7892/boris.46898

URI:

https://boris.unibe.ch/id/eprint/46898

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