Mineralogy, geochemistry, and zircon U-Pb-Hf isotopes of the Paleoproterozoic granulite-facies metamorphic rocks from the Aketashitage area, southeastern Tarim Craton
Precambrian Research(2019)
Abstract
•The granulite-facies metamorphic rocks have a large spread in metamorphic ages (2036–1962 Ma).•Zircon Hf isotopes suggest a long-lived reworking of the preexisting crust.•The source of the granulite-facies metamorphic rocks is likely the garnet-bearing middle crust.•The Dunhuang Block was possibly an active continental margin during the Paleoproterozoic.
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Key words
Garnet-biotite gneiss,Mafic granulite,Zircon U-Pb ages and Hf isotopes,Dunhuang Block,Active continental margins
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