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dc.contributor.authorMikhail, Sami
dc.contributor.authorRinaldi, Michele
dc.contributor.authorMare, Eleanor R.
dc.contributor.authorSverjensky, Dimitri
dc.date.accessioned2021-04-01T14:30:06Z
dc.date.available2021-04-01T14:30:06Z
dc.date.issued2021-03-24
dc.identifier273141583
dc.identifier26701bff-61c2-48d7-bf7d-99279d53c04e
dc.identifier000635192400001
dc.identifier85105111599
dc.identifier.citationMikhail , S , Rinaldi , M , Mare , E R & Sverjensky , D 2021 , ' A genetic metasomatic link between eclogitic and peridotitic diamond inclusions ' , Geochemical Perspectives Letters , vol. 17 , pp. 33-38 . https://doi.org/10.7185/geochemlet.2111en
dc.identifier.issn2410-339X
dc.identifier.otherORCID: /0000-0001-5276-0229/work/91685826
dc.identifier.otherORCID: /0000-0003-0531-7755/work/91685901
dc.identifier.urihttps://hdl.handle.net/10023/21754
dc.descriptionFunding for SM, ERM, and MR is provided by NERC standard grant (NE/P012167/1) and UK Space Agency Aurora grant (ST/T001763/1). Funding for DAS is provided by the US DOE (DE-FG-02-96ER-14616) and the US NSF (EAR 1624325 and ACI 1550346).en
dc.description.abstractDiamond inclusions sample the otherwise inaccessible archive of Earth’s deep interior. The geochemical and petrological diversity of diamond inclusions reflects either pre-metasomatic upper mantle heterogeneity or metasomatism coeval with diamond formation. We focus on the origin of lithospheric garnet and clinopyroxene inclusions by simulating metasomatic reactions between eclogitic fluids and mantle peridotites at 5 GPa, 1000 °C, and across a range of redox conditions (logfO2 = −1 to −6 ΔFMQ). Our results demonstrate that fluid-rock interaction can result in the formation of eclogitic, websteritic, and peridotitic silicates from a single fluid during a single diamond-forming metasomatic event. Ergo, the petrogenesis of diamond and their inclusions can be syngenetic, and the petrological diversity of diamond inclusions can reflect metasomatism coeval with diamond formation. Furthermore, during the metasomatism, refractory peridotite can be converted to fertile websterite which could become a pyroxenitic mantle source for oceanic basalts.
dc.format.extent4122205
dc.language.isoeng
dc.relation.ispartofGeochemical Perspectives Lettersen
dc.subjectDiamond formationen
dc.subjectMetasomatismen
dc.subjectPyroxeniteen
dc.subjectGeochemical modellingen
dc.subjectMantle petrologyen
dc.subjectDeep carbon cycleen
dc.subjectGE Environmental Sciencesen
dc.subjectDASen
dc.subject.lccGEen
dc.titleA genetic metasomatic link between eclogitic and peridotitic diamond inclusionsen
dc.typeJournal articleen
dc.contributor.sponsorNERCen
dc.contributor.institutionUniversity of St Andrews. School of Earth & Environmental Sciencesen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.contributor.institutionUniversity of St Andrews. St Andrews Isotope Geochemistryen
dc.identifier.doi10.7185/geochemlet.2111
dc.description.statusPeer revieweden
dc.identifier.grantnumberNE/P012167/1en


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