Matches in SemOpenAlex for { <https://semopenalex.org/work/W2895539153> ?p ?o ?g. }
- W2895539153 endingPage "620" @default.
- W2895539153 startingPage "601" @default.
- W2895539153 abstract "We present new geochemistry, geochronology, whole-rock Sr-Nd-Pb, and zircon Hf isotopic data from the Zhongba pluton in the western part of the Gangdese magmatic belt (GMB) and discuss its melt evolution within the collisional tectonic framework of southern Tibet. Our U-Pb zircon dating of the Zhongba plutonic rocks has constrained the timing of their emplacement at 38 Ma. The Zhongba granitoids are enriched in light rare earth elements, large-ion lithophile elements, and Pb and are depleted in high-field-strength elements. They show enriched Sr isotopes, low εNd(t) values, and fairly radiogenic Pb isotopic signatures. They have negative zircon εHf(t) values and ancient crustal model ages of 1483–1180 Ma. These geochemical and isotopic characteristics, combined with the literature data, suggest mixing of different magma types, derived from partial melting of juvenile southern Lhasa crust and ancient Indian continental crust, to produce hybrid magmas of the Zhongba granitoids. We propose that asthenospheric upwelling caused by the breakoff of the northward-subducting Neotethyan oceanic lithosphere provided the heat and material flux to trigger partial melting of the overlying Lhasa arc lithosphere and subducted sediments of the ancient Indian crust. Similar geochemical and isotopic signatures of the coeval Kailas and Zedong granitoids within the GMB indicate that this slab breakoff–induced mid- to late Eocene magmatism was a syncollisional and orogen-parallel magmatic event. The Zhongba pluton and its contemporaneous equivalents thus provide the geochronological and isotopic evidence for the earliest melt flux derived from the subducted continental crust and sediments of India into the melt regime of Cenozoic magmatism in southern Tibet." @default.
- W2895539153 created "2018-10-12" @default.
- W2895539153 creator A5000607739 @default.
- W2895539153 creator A5001810569 @default.
- W2895539153 creator A5008171524 @default.
- W2895539153 creator A5018805989 @default.
- W2895539153 creator A5036298246 @default.
- W2895539153 creator A5048447214 @default.
- W2895539153 creator A5062382250 @default.
- W2895539153 creator A5073451708 @default.
- W2895539153 date "2018-11-01" @default.
- W2895539153 modified "2023-10-15" @default.
- W2895539153 title "Geochemical and Isotopic Characterization of Middle Eocene Hybrid Magmatism in the Gangdese Belt (Tibet) and Its Ancient Indian Crustal Fingerprint" @default.
- W2895539153 cites W1521262137 @default.
- W2895539153 cites W1528695685 @default.
- W2895539153 cites W1543727081 @default.
- W2895539153 cites W1607805073 @default.
- W2895539153 cites W1760379286 @default.
- W2895539153 cites W1971685925 @default.
- W2895539153 cites W1973012528 @default.
- W2895539153 cites W1973219404 @default.
- W2895539153 cites W1974184983 @default.
- W2895539153 cites W1974467019 @default.
- W2895539153 cites W1976467450 @default.
- W2895539153 cites W1977073296 @default.
- W2895539153 cites W1977922407 @default.
- W2895539153 cites W1981207838 @default.
- W2895539153 cites W1983524649 @default.
- W2895539153 cites W1985574668 @default.
- W2895539153 cites W1999924690 @default.
- W2895539153 cites W2000938697 @default.
- W2895539153 cites W2002325302 @default.
- W2895539153 cites W2005769501 @default.
- W2895539153 cites W2010457088 @default.
- W2895539153 cites W2010771079 @default.
- W2895539153 cites W2013113281 @default.
- W2895539153 cites W2020973699 @default.
- W2895539153 cites W2022859730 @default.
- W2895539153 cites W2024256007 @default.
- W2895539153 cites W2025750942 @default.
- W2895539153 cites W2027225510 @default.
- W2895539153 cites W2027934726 @default.
- W2895539153 cites W2030661236 @default.
- W2895539153 cites W2030843089 @default.
- W2895539153 cites W2033011597 @default.
- W2895539153 cites W2041837766 @default.
- W2895539153 cites W2043189416 @default.
- W2895539153 cites W2047578041 @default.
- W2895539153 cites W2052574706 @default.
- W2895539153 cites W2052839102 @default.
- W2895539153 cites W2053459594 @default.
- W2895539153 cites W2054368497 @default.
- W2895539153 cites W2054590577 @default.
- W2895539153 cites W2055356153 @default.
- W2895539153 cites W2056886054 @default.
- W2895539153 cites W2059761402 @default.
- W2895539153 cites W2060838133 @default.
- W2895539153 cites W2068038089 @default.
- W2895539153 cites W2069682878 @default.
- W2895539153 cites W2072795227 @default.
- W2895539153 cites W2076395812 @default.
- W2895539153 cites W2081673195 @default.
- W2895539153 cites W2083226499 @default.
- W2895539153 cites W2083330810 @default.
- W2895539153 cites W2085292995 @default.
- W2895539153 cites W2086308255 @default.
- W2895539153 cites W2086557360 @default.
- W2895539153 cites W2087593865 @default.
- W2895539153 cites W2094727526 @default.
- W2895539153 cites W2096276260 @default.
- W2895539153 cites W2097671688 @default.
- W2895539153 cites W2102081901 @default.
- W2895539153 cites W2105488103 @default.
- W2895539153 cites W2110129020 @default.
- W2895539153 cites W2112077113 @default.
- W2895539153 cites W2114730569 @default.
- W2895539153 cites W2115108800 @default.
- W2895539153 cites W2115518283 @default.
- W2895539153 cites W2116346512 @default.
- W2895539153 cites W2116527388 @default.
- W2895539153 cites W2128624170 @default.
- W2895539153 cites W2136388350 @default.
- W2895539153 cites W2137478736 @default.
- W2895539153 cites W2138522501 @default.
- W2895539153 cites W2140736107 @default.
- W2895539153 cites W2141391066 @default.
- W2895539153 cites W2141659671 @default.
- W2895539153 cites W2142145377 @default.
- W2895539153 cites W2143603242 @default.
- W2895539153 cites W2146287513 @default.
- W2895539153 cites W2148928597 @default.
- W2895539153 cites W2152867125 @default.
- W2895539153 cites W2160412587 @default.
- W2895539153 cites W2161702350 @default.
- W2895539153 cites W2162271255 @default.
- W2895539153 cites W2163661859 @default.
- W2895539153 cites W2164723659 @default.
- W2895539153 cites W2167264625 @default.