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- W4324025858 abstract "The most intense arc magmatism in the Gangdese arc occurred during the Palaeocene–Eocene, which is widespread across the entire southern Lhasa subterrane with Palaeocene–Eocene I‐type intrusive rocks and Linzizong volcanic successions. What drives the voluminous magmatism remains enigmatic. New geochronological and geochemical data on Late Cretaceous‐Palaeocene magmatic activity from Bumeicun, southern Tibet enables recognition of this distinct magmatic flare‐up event that we ascribe to Neo‐Tethyan Oceanic slab rollback. Bumeicun, located in the southern margin of Gangdese magmatic arc, exposes volcanic and plutonic rocks with close spatial–temporal links, and a wide range of silica content (53.0–74.7 wt.%). Zircon U–Pb dating result shows that the rocks form at 65.24 ± 0.77–67.65 ± 0.31 Ma. The Bumeicun igneous rocks are characterized by relative enrichment of large‐ion lithophile elements, depletion of high field‐strength elements (HFSEs) and enrichment of light rare earth elements, showing typical arc features. These rocks also show positive zircon ε Hf ( t ) value (+8.70 to+19.68), which are ascribed to the partial melting of arc mantle wedges. Followed by a succession of melt extraction and fractional crystallization, the coeval intermediate‐felsic volcanic and plutonic rocks in Bumeicun are formed. Previous researches note that Gangdese magmatic arc had a period of magmatic quiescence in the Late Cretaceous, and a subsequent burst of magmatism occurred in the P‐E. Our proposal of slab rollback model is consistent with the distinctly high zircon saturation temperatures (Tzr: 730–827°C) of Bumeicun magmatism. In addition, the slab rollback led to the Gangdese arc magmatism migration from north to south from the Cretaceous to the Eocene." @default.
- W4324025858 created "2023-03-14" @default.
- W4324025858 creator A5009523738 @default.
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- W4324025858 creator A5044825799 @default.
- W4324025858 creator A5047413394 @default.
- W4324025858 creator A5066486652 @default.
- W4324025858 date "2023-03-13" @default.
- W4324025858 modified "2023-10-12" @default.
- W4324025858 title "Late <scp>Cretaceous‐Palaeocene</scp> arc magmatism in Bumeicun, Gangdese, southern Tibet: Products of slab rollback of <scp>Neo‐Tethyan</scp> Ocean?" @default.
- W4324025858 cites W1570343793 @default.
- W4324025858 cites W1602057685 @default.
- W4324025858 cites W1751028115 @default.
- W4324025858 cites W1968408236 @default.
- W4324025858 cites W1969818811 @default.
- W4324025858 cites W1971685925 @default.
- W4324025858 cites W1974957554 @default.
- W4324025858 cites W1977795491 @default.
- W4324025858 cites W1977922407 @default.
- W4324025858 cites W1979705656 @default.
- W4324025858 cites W1982133624 @default.
- W4324025858 cites W1984806097 @default.
- W4324025858 cites W1986765303 @default.
- W4324025858 cites W1989238422 @default.
- W4324025858 cites W1989829455 @default.
- W4324025858 cites W1990327655 @default.
- W4324025858 cites W1997425408 @default.
- W4324025858 cites W1997438303 @default.
- W4324025858 cites W2004433109 @default.
- W4324025858 cites W2004780129 @default.
- W4324025858 cites W2008787240 @default.
- W4324025858 cites W2010132341 @default.
- W4324025858 cites W2010253617 @default.
- W4324025858 cites W2010771079 @default.
- W4324025858 cites W2013857416 @default.
- W4324025858 cites W2019748000 @default.
- W4324025858 cites W2020471886 @default.
- W4324025858 cites W2022382004 @default.
- W4324025858 cites W2023320566 @default.
- W4324025858 cites W2023558113 @default.
- W4324025858 cites W2024585020 @default.
- W4324025858 cites W2025750942 @default.
- W4324025858 cites W2027225510 @default.
- W4324025858 cites W2027411519 @default.
- W4324025858 cites W2030023077 @default.
- W4324025858 cites W2030661236 @default.
- W4324025858 cites W2040029696 @default.
- W4324025858 cites W2040383206 @default.
- W4324025858 cites W2042722986 @default.
- W4324025858 cites W2044921168 @default.
- W4324025858 cites W2046935420 @default.
- W4324025858 cites W2046961523 @default.
- W4324025858 cites W2047634242 @default.
- W4324025858 cites W2049451277 @default.
- W4324025858 cites W2054368497 @default.
- W4324025858 cites W2054564274 @default.
- W4324025858 cites W2054624167 @default.
- W4324025858 cites W2061896955 @default.
- W4324025858 cites W2062218969 @default.
- W4324025858 cites W2062828467 @default.
- W4324025858 cites W2063013976 @default.
- W4324025858 cites W2071213199 @default.
- W4324025858 cites W2076395812 @default.
- W4324025858 cites W2082181291 @default.
- W4324025858 cites W2083330810 @default.
- W4324025858 cites W2086884322 @default.
- W4324025858 cites W2089507620 @default.
- W4324025858 cites W2090695609 @default.
- W4324025858 cites W2091441425 @default.
- W4324025858 cites W2092836793 @default.
- W4324025858 cites W2096276260 @default.
- W4324025858 cites W2097944562 @default.
- W4324025858 cites W2098677480 @default.
- W4324025858 cites W2102290079 @default.
- W4324025858 cites W2103541815 @default.
- W4324025858 cites W2103999221 @default.
- W4324025858 cites W2108971421 @default.
- W4324025858 cites W2110129020 @default.
- W4324025858 cites W2114125023 @default.
- W4324025858 cites W2115518283 @default.
- W4324025858 cites W2116346512 @default.
- W4324025858 cites W2116527388 @default.
- W4324025858 cites W2117979886 @default.
- W4324025858 cites W2119169399 @default.
- W4324025858 cites W2128209044 @default.
- W4324025858 cites W2131506862 @default.
- W4324025858 cites W2131545507 @default.
- W4324025858 cites W2135830789 @default.
- W4324025858 cites W2138522501 @default.
- W4324025858 cites W2139788788 @default.
- W4324025858 cites W2144173818 @default.
- W4324025858 cites W2145398769 @default.
- W4324025858 cites W2148928597 @default.
- W4324025858 cites W2154628848 @default.
- W4324025858 cites W2169766597 @default.
- W4324025858 cites W2227505540 @default.
- W4324025858 cites W2266136631 @default.
- W4324025858 cites W2292226813 @default.