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Source assemblage types for cratonic diamonds from X-ray synchrotron diffraction.
- Source :
-
Lithos . Nov2016, Vol. 265, p334-338. 5p. - Publication Year :
- 2016
-
Abstract
- Three single crystals of clinopyroxene trapped within three different gem-quality diamonds from the Udachnaya kimberlite (Siberia, Russia) were analysed in situ by single-crystal synchrotron X-ray diffraction in order to obtain information on their chemical composition and infer source assemblage type. A non-destructive approach was used with high-energy (≈ 60 keV; λ ≈ 0.206 Å) at I15, the extreme-conditions beamline at Diamond Light Source. A dedicated protocol was used to center the mineral inclusions located deep inside the diamonds in the X-ray beam. Our results reveal that two of the inclusions can be associated with peridotitic paragenesis whereas the third is eclogitic. This study also demonstrates that this non-destructive experimental approach is extremely efficient in evaluating the origin of minerals trapped in their diamond hosts. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DIAMONDS
*CRATONS
*X-ray diffraction
*SYNCHROTRONS
*ECLOGITE
*KIMBERLITE
Subjects
Details
- Language :
- English
- ISSN :
- 00244937
- Volume :
- 265
- Database :
- Academic Search Index
- Journal :
- Lithos
- Publication Type :
- Academic Journal
- Accession number :
- 119651777
- Full Text :
- https://doi.org/10.1016/j.lithos.2016.07.037