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Eclogitic diamonds from variable crustal protoliths in the northeastern Siberian craton: Trace elements and coupled d13C-d18O signatures in diamonds and garnet inclusions

Zedgenizov, Dmitry; Rubatto, Daniela; Shatsky, Vladislav; Ragozin, Alexey; Kalinina, Victoria

Description

Diamonds of eclogitic assemblages are dominant in the placer diamond deposits of the northeastern Siberian platform. In this study we present new trace elements and stable isotopes (δ13C and δ18O) data for alluvial diamonds and their garnet inclusions from this locality. Cr-rich garnets of peridotitic affinity in the studied diamonds have a narrow range of δ18O values from 5.7‰ to 6.2‰, which is largely overlapping with the accepted mantle range. This narrow range suggests that the garnet...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
URI: http://hdl.handle.net/1885/103520
Source: Chemical Geology
DOI: 10.1016/j.chemgeo.2015.12.018

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