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Evidence for rhenium enrichment in the mantle wedge from submarine arc-like volcanic glasses (Papua New Guinea)

Sun, Weidong; Arculus, Richard; Bennett, Victoria; Eggins, Stephen; Binns, Raymond A.

Description

The low Re abundance in arc-type volcanic rocks characterized by high 187Os/188Os ratios is an unsolved puzzle of the 187Re-187OS isotope system, leaving a significant gap in our understanding of the evolution of the upper mantle-continental crust system. Here we report new observations of high Re concentrations in fresh, submarine-erupted-i.e., relatively undegassed-island arc-like volcanic glasses dredged from the eastern Manus Basin, offshore Papua New Guinea. These observations, together...[Show more]

dc.contributor.authorSun, Weidong
dc.contributor.authorArculus, Richard
dc.contributor.authorBennett, Victoria
dc.contributor.authorEggins, Stephen
dc.contributor.authorBinns, Raymond A.
dc.date.accessioned2015-12-13T23:12:05Z
dc.date.available2015-12-13T23:12:05Z
dc.identifier.issn0091-7613
dc.identifier.urihttp://hdl.handle.net/1885/87882
dc.description.abstractThe low Re abundance in arc-type volcanic rocks characterized by high 187Os/188Os ratios is an unsolved puzzle of the 187Re-187OS isotope system, leaving a significant gap in our understanding of the evolution of the upper mantle-continental crust system. Here we report new observations of high Re concentrations in fresh, submarine-erupted-i.e., relatively undegassed-island arc-like volcanic glasses dredged from the eastern Manus Basin, offshore Papua New Guinea. These observations, together with previously published reports of high Re concentrations in arc-type melt inclusions, indicate that undegassed arc-type volcanic rocks and the mantle wedge are enriched in Re. Consequently, the Re concentration in the continental crust is likely to be as high as ∼2 ppb, much higher than previously estimated. The low Re concentrations in subaerial arc-type volcanic rocks are probably due to Re loss during magma degassing.
dc.publisherGeological Society of America Inc
dc.sourceGeology
dc.subjectKeywords: Volcanic glasses; Catchments; Isotopes; Oxygen; Rhenium; Volcanic rocks; Submarine geology; continental crust; enrichment; geochemistry; rhenium; submarine feature; volcanic glass; Pacific Ocean; Papua New Guinea Continental-crust composition; Cu/Re; Manus Basin; Rhenium enrichment; Submarine arc-type volcanic glasses; Yb/Re
dc.titleEvidence for rhenium enrichment in the mantle wedge from submarine arc-like volcanic glasses (Papua New Guinea)
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume31
dc.date.issued2003
local.identifier.absfor040304 - Igneous and Metamorphic Petrology
local.identifier.ariespublicationMigratedxPub17355
local.type.statusMetadata only
local.contributor.affiliationSun, Weidong, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationArculus, Richard, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBennett, Victoria, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationEggins, Stephen, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBinns, Raymond A, CSIRO Exploration and Mining
local.bibliographicCitation.issue10
local.bibliographicCitation.startpage845
local.bibliographicCitation.lastpage848
local.identifier.doi10.1130/G19832.1
dc.date.updated2015-12-12T08:30:18Z
local.identifier.scopusID2-s2.0-0242497219
CollectionsANU Research Publications

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