Source assemblage types for cratonic diamonds from X-ray synchrotron diffraction

F. Nestola; M. Alvaro; M. N. Casati; H. Wilhelm; A. K. Kleppe; A. P. Jephcoat; M. C. Domeneghetti; J. W. Harris

doi:10.1016/j.lithos.2016.07.037

Source assemblage types for cratonic diamonds from X-ray synchrotron diffraction

F. Nestola, M. Alvaro, M. N. Casati, H. Wilhelm, A. K. Kleppe, A. P. Jephcoat, M. C. Domeneghetti, J. W. Harris

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

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.

Original language	English
Pages (from-to)	334-338
Number of pages	5
Journal	LITHOS
Volume	265
DOIs	https://doi.org/10.1016/j.lithos.2016.07.037
Publication status	Published - Nov 15 2016

Keywords

Clinopyroxene
Diamond
Eclogite
Peridotite
Synchrotron

ASJC Scopus subject areas

Geology
Geochemistry and Petrology

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10.1016/j.lithos.2016.07.037

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title = "Source assemblage types for cratonic diamonds from X-ray synchrotron diffraction",

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 {\AA}) 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.",

keywords = "Clinopyroxene, Diamond, Eclogite, Peridotite, Synchrotron",

author = "F. Nestola and M. Alvaro and Casati, {M. N.} and H. Wilhelm and Kleppe, {A. K.} and Jephcoat, {A. P.} and Domeneghetti, {M. C.} and Harris, {J. W.}",

note = "Funding Information: The work has been supported by the ERC Starting Grant to FN (grant agreement no 307322 ). The authors wish to acknowledge beamline I15 at Diamond Synchrotron Light Source where the data were collected during the experiment EE7616. MA has been supported by the S.I.R.-M.I.U.R. grant MILE DEEp (grant number RBSI140351 ). The Diamond Trading Company (a member of the DeBeers Group of Companies) is thanked for the donation of the diamonds to JWH. Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

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doi = "10.1016/j.lithos.2016.07.037",

language = "English",

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journal = "LITHOS",

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T1 - Source assemblage types for cratonic diamonds from X-ray synchrotron diffraction

AU - Nestola, F.

AU - Alvaro, M.

AU - Casati, M. N.

AU - Wilhelm, H.

AU - Kleppe, A. K.

AU - Jephcoat, A. P.

AU - Domeneghetti, M. C.

AU - Harris, J. W.

N1 - Funding Information: The work has been supported by the ERC Starting Grant to FN (grant agreement no 307322 ). The authors wish to acknowledge beamline I15 at Diamond Synchrotron Light Source where the data were collected during the experiment EE7616. MA has been supported by the S.I.R.-M.I.U.R. grant MILE DEEp (grant number RBSI140351 ). The Diamond Trading Company (a member of the DeBeers Group of Companies) is thanked for the donation of the diamonds to JWH. Publisher Copyright: © 2016 Elsevier B.V.

PY - 2016/11/15

Y1 - 2016/11/15

N2 - 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.

AB - 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.

KW - Clinopyroxene

KW - Diamond

KW - Eclogite

KW - Peridotite

KW - Synchrotron

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Source assemblage types for cratonic diamonds from X-ray synchrotron diffraction

Abstract

Keywords

ASJC Scopus subject areas

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