Carbon isotopes In China natural diamonds. / Zhang, H.-F.; Lu, F X ; Zhao, L; Menzies, Martin; Mattey, Dave; LIang, S.Y.

In: Journal of China University of Geosciences, Vol. 34, No. 1, 2009, p. 37-42.

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Abstract

China's two major natural diamond-producing mines-Shandong Mengyin and Liaoning Fuxian produce a large quantity of high-quality diamonds. EA-IRMS (Isotope Ratio Mass Spectrometry connected with Elemental Analyzer) analyses reveal that these single-crystal diamonds ubiquitously bear carbon isotope zonation. And in both localities, the carbon isotope zonation is more apparent in solid inclusion-bearing diamonds than in non-inclusion diamonds. Carbon isotope nature in Chinese diamonds also demonstrates that these diamonds-forming carbons were derived from mantle, with no equivocal evidence for the involvement of crust carbons derived from the recycling of the surface sediments.
Original languageEnglish
Pages (from-to)37-42
Number of pages6
JournalJournal of China University of Geosciences
Volume34
Issue number1
Publication statusPublished - 2009
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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