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U-Pb ages and Hf-O isotopes of zircons from Late Paleozoic mafic-ultramafic units in the southern Central Asian Orogenic Belt: Tectonic implications and evidence for an Early-Permian mantle plume

Su, Ben-Xun; Qin, Ke-Zhang; Sakyi, Patrick Asamoah; Li, Xian-hua; Yang, Yue-Heng; Sun, He; Tang, Dong-Mei; Liu, Ping-Ping; Xiao, Qing-Hua; Malaviarachchi, Sanjeewa


U-Pb age and Hf-O isotope data of zircons from the mafic-ultramafic complexes and their related rhyolites and granites in the Eastern Tianshan and Beishan regions were obtained by SIMS and LA-ICPMS. The Hf-O isotopic composition and Hf model age of the zircons are closely related to their tectonic setting and formation age. The zircons from the mafic-ultramafic complexes in the Bogeda-Haerlike and Jueluotage belts have higher εHf(t) (+8-+17) and lower δ18O (+4‰-+6‰), whereas most of the zircons...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Gondwana Research
DOI: 10.1016/


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