Microstructural and rheological contrasts between dunite, harzburgite and pyroxenite

9aDKPhasewmixingKofKolivineKandKorthopyroxeneDDD

jUHKFarlaLKRDJDMDLKKaratoLKSDLKandKCaiLKZDKProc. Nat. Acad. Sci. 9cU8j9HKBruijnLKHDCDRDKandKSkemerLKPDKGeophys. Res. Lett.K9cU5Kj8HKLawlisLKPhDKthesisLKDepDKofKGeosciencesLKPennDKStateKUnivDLStateKCollegeLKPaDKUää:

j5HKLinckensLKJDLKBruijnLKHDCDRDLKSkemerLKPDKEarth Planet. Sci. Lett.K9cU5j6HKLinckensLKJDKetKalDKJ. Geophys. Res.K9cUUjIHKHirthLKGDKandKKohlstedtLKDDKInsideKtheSubductionKFactoryLKGeophys. Monogr. Ser.LK9cc8K

References7

Robert Farla1 1KBayerischesKGeoinstitutLKUniversitätKBayreuthLKä655bKBayreuthLKGermanyKwwKEmail7KrobertDfarlaWuniwbayreuthDdeK

UDKIntroduction7odelsF predictingF theF strengthF ofF theF lithosphereF failF toF produceF substantialF weakeningFnecessaryF forF plateF tectonicF convection°F HdditionalF mechanismsF areF necessaryF thatF canFleadF toF weakeningDF mostF likelyF inF theF formF ofF localizingF deformationF asF seenF inF nature°F?ecentFexperimentalFstudiesFEe°g°FIarlaFetFal°FP6G×-FreportFtantalizingFcluesFthatFaFsecondFphaseF Eorthopyroxene-F canF helpF localizeF deformationF viaF dynamicF recrystallizationF andFphaseF mixing°F ThisF studyF expandsF theF deformationF conditionsF toF furtherF investigateF theFrheologicalFroleFofFpyroxenesFinFtheFductileFlowerFlithosphereCasthenosphereFofFtheFVarthFwithFimplicationsFforFperidotite9pyroxeniteFshearFzones°F

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