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dc.contributor.authorRubin, A. E.
dc.contributor.authorHuber, H.
dc.date.accessioned2021-02-12T21:17:38Z
dc.date.available2021-02-12T21:17:38Z
dc.date.issued2005-01-01
dc.identifier.citationRubin, A. E., & Huber, H. (2005). A weathering index for CK and R chondrites. Meteoritics & Planetary Science, 40(8), 1123-1130.
dc.identifier.issn1945-5100
dc.identifier.doi10.1111/j.1945-5100.2005.tb00178.x
dc.identifier.urihttp://hdl.handle.net/10150/656026
dc.description.abstractWe present a new weathering index (wi) for the metallic-Fe-Ni-poor chondrite groups (CK and R) based mainly on transmitted light observations of the modal abundance of crystalline material that is stained brown in thin sections: wi-0, <5 vol%; wi-1, 5-25 vol%; wi-2, 25-50 vol%; wi-3, 50-75 vol%; wi-4, 75-95 vol%; wi-5, >95 vol%; wi-6, significant replacement of mafic silicates by phyllosilicates. Brown staining reflects mobilization of oxidized iron derived mainly from terrestrial weathering of Ni-bearing sulfide. With increasing degrees of terrestrial weathering of CK and R chondrites, the sulfide modal abundance decreases, and S, Se, and Ni become increasingly depleted. In addition, bulk Cl increases in Antarctic CK chondrites, probably due to contamination from airborne sea mist.
dc.language.isoen
dc.publisherThe Meteoritical Society
dc.relation.urlhttps://meteoritical.org/
dc.rightsCopyright © The Meteoritical Society
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectcomposition of meteorites
dc.subjectCK carbonaceous chondrite meteorites
dc.subjectR chondrite meteorites
dc.subjectweathering
dc.titleA weathering index for CK and R chondrites
dc.typeArticle
dc.typetext
dc.identifier.journalMeteoritics & Planetary Science
dc.description.collectioninformationThe Meteoritics & Planetary Science archives are made available by the Meteoritical Society and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume40
dc.source.issue8
dc.source.beginpage1123
dc.source.endpage1130
refterms.dateFOA2021-02-12T21:17:39Z


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