Hotspot volcanism and highly siderophile elements

TitleHotspot volcanism and highly siderophile elements
Publication TypeJournal Article
Year of Publication2013
AuthorsDay JMD
JournalChemical Geology
Volume341
Pagination50-74
Date Published2013/03
Type of ArticleReview
ISBN Number0009-2541OW JE, 1995, EARTH AND PLANETARY SCIENCE LETTERS, V133, P411
Accession NumberWOS:000317163200004
Keywordsarchean lithospheric mantle; core-mantle interaction; Highly siderophile elements, Osmium isotopes, Hotspot volcanism, Mantle geochemistry, Ocean island basalt, Continental flood basalt; ionization mass-spectrometry; isotope; large igneous; ley s, 1992, lithos, v28, p187; midocean ridge basalts; oceanic island basalts; os isotope systematics; platinum-group-element; province; pt-re-os; rhenium-osmium
Abstract

--Highly siderophile element (HSE) abundances and Os isotopes are powerful tools for understanding hotspot volcanism.

--There is strong evidence for recycling of oceanic lithosphere into some hotspot volcanics (OIB and CFB).

--Higher degree melting leads to larger contribution from peridotite relative to more fusible materials (e.g., pyroxenite).

--Osmium isotopes allow tracing of high (Pt+Re)/Os sources in volcanic rocks and possible core-mantle interactions.

--Solar System-wide volcanism ubiquitously derive from mantles with chondrite-relative HSE abundances.

DOI10.1016/j.chemgeo.2012.12.010
Short TitleChem. Geol.
Student Publication: 
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