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dc.contributor.authorBroadley, M. B.
dc.contributor.authorKagi, H.
dc.contributor.authorBurgess, R.
dc.contributor.authorZedgenizov, D.
dc.contributor.authorMikhail, Sami
dc.contributor.authorAlmayrac, M.
dc.contributor.authorRagozin, A.
dc.contributor.authorPomazansky, B.
dc.contributor.authorSumino, H.
dc.identifier.citationBroadley , M B , Kagi , H , Burgess , R , Zedgenizov , D , Mikhail , S , Almayrac , M , Ragozin , A , Pomazansky , B & Sumino , H 2018 , ' Plume-lithosphere interaction, and the formation of fibrous diamonds ' , Geochemical Perspectives Letters , vol. 8 , pp. 26-30 .
dc.identifier.otherPURE: 256085651
dc.identifier.otherPURE UUID: 54a01f2b-4faf-4087-b520-c1bc249cd76e
dc.identifier.otherScopus: 85057454372
dc.identifier.otherORCID: /0000-0001-5276-0229/work/49052231
dc.identifier.otherWOS: 000450301600003
dc.descriptionThis work was financially supported though a JSPS international research fellowship PE 14721 (to MWB) and JSPS KAKENHI grant numbers JP 26287139 and JP15KK0150 (to HS). The work of DAZ and ALR was supported by Russian science foundation (16-17-10067). RB acknowledges funding from the NERC (NE/M000427/1). SM acknowledges funding from the NERC (NE/PO12167/1).en
dc.description.abstractFluid inclusions in diamond provide otherwise inaccessible information on the origin and nature of carbonaceous fluid(s) in the mantle. Here we evaluate the role of subducted volatiles in diamond formation within the Siberian cratonic lithosphere. Specifically, we focus on the halogen (Cl, Br and I) and noble gas (He, Ne and Ar) geochemistry of fluids trapped within cubic, coated and cloudy fibrous diamonds from the Nyurbinskaya kimberlite, Siberia. Our data show Br/Cl and I/Cl ratios consistent with involvement of altered oceanic crust, suggesting subduction-derived fluids have infiltrated the Siberian lithosphere. 3He/4He ranging from 2 to 11 RA, indicates the addition of a primordial mantle component to the SCLM. Mantle plumes may therefore act as a trigger to re-mobilise subducted carbon-rich fluids from the sub-continental lithospheric mantle, and we argue this may be an essential process in the formation of fluid-rich diamonds, and kimberlitic magmatism.
dc.relation.ispartofGeochemical Perspectives Lettersen
dc.rightsCopyright © The Authors. Published by the European Association of Geochemistry under Creative Commons License CC BY-NC-ND 4.0. This work is distributed under the Creative Commons Attribution Non-Commercial No-Derivatives 4.0 License, which permits unrestricted distribution provided the original author and source are credited. The material may not be adapted (remixed, transformed or built upon) or used for commercial purposes without written permission from the author. Additional information is available at
dc.subjectDiamond formationen
dc.subjectMantle plumeen
dc.subjectNoble gasen
dc.subjectQE Geologyen
dc.subjectQD Chemistryen
dc.titlePlume-lithosphere interaction, and the formation of fibrous diamondsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
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.description.statusPeer revieweden

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