Redox preconditioning deep cratonic lithosphere for kimberlite genesis - evidence from the central Slave Craton

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10371260" target="_blank" >RIV/00216208:11310/17:10371260 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1038/s41598-017-00049-3" target="_blank" >http://dx.doi.org/10.1038/s41598-017-00049-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-017-00049-3" target="_blank" >10.1038/s41598-017-00049-3</a>

Result language

angličtina

Original language name

Redox preconditioning deep cratonic lithosphere for kimberlite genesis - evidence from the central Slave Craton

Original language description

We present the first oxygen fugacity (fO(2)) profile through the cratonic lithospheric mantle under the Panda kimberlite (Ekati Diamond Mine) in the Lac de Gras kimberlite field, central Slave Craton, northern Canada. Combining this data with new and existing data from garnet peridotite xenoliths from an almost coeval kimberlite (A154-N) at the nearby Diavik Diamond Mine demonstrates that the oxygen fugacity of the Slave cratonic mantle varies by several orders of magnitude as a function of depth and over short lateral distances. The lower part of the diamond-bearing Slave lithosphere (&gt; 120-130 km deep) has been oxidized by up to 4 log units in fO(2), and this is clearly linked to metasomatic enrichment. Such coupled enrichment and oxidation was likely caused by infiltrating carbonatebearing, hydrous, silicate melts in the presence of diamond, a process proposed to be critical for &quot;preconditioning&quot; deep lithospheric mantle and rendering it suitable for later generation of kimberlites and other SiO2-undersaturated magmas.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10505 - Geology

Project

<a href="/en/project/GA13-06958S" target="_blank" >GA13-06958S: Mineral and textural signatures recording pre-exhumation and pre-collision history of the HP/UHPM rocks in orogenic zone</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

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Volume of the periodical

7

Issue of the periodical within the volume

February 2017

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

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UT code for WoS article

000396939700001

EID of the result in the Scopus database

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