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• W2017806419 abstract "Abstract The Neoproterozoic mafic intrusions of the Hannan massif at the northwestern margin of the Yangtze Block in South China are composed mainly of OIB-type gabbros and subduction-related mafic intrusions. Here we present the petrology, geochemistry and zircon U–Pb geochronology of these intrusions. The gabbros are characterized by enrichment of LILE and highly differentiated HFSE patterns, suggesting their deviation from an OIB mantle source. The gabbroic melts were generated by about 5–10% partial melting of a garnet + spinel lherzolite, and crystallized at ca. 898 ± 10 Ma. The subduction-related intrusions include the Wangjiangshan gabbro-diorite suite, Xijiaba gabbros, and Youshui diabases and the gabbros associated with ultramafic rocks. The diorites and gabbros in Wangjiangshan are characterized by a depletion of Nb–Ta, P and Ti with a flat distribution of most of the LILE and HFSE except for the markedly large variations in the positive anomalies displayed by Ba, K, Pb and Zr. These features reflect limited degrees of crustal contamination associated with a subduction-related magma process. The melts of the Wangjiangshan intrusions were derived from a spinel lherzolite mantle source by diverse degrees (5–20%) of partial melting, and crystallized at ca. 784.3 ± 6.0 Ma. The geochemical signatures including depletion in Nb–Ta, Zr, P and Ti, and slight differentiation of HFSE without crustal contamination suggest that the Xijiaba gabbros were formed in a mantle wedge setting at ca. 798.7 ± 4.6 Ma. These rocks were derived from ca. 10% partial melting of a garnet + spinel lherzolite. The Youshui diabases display enrichment of Rb, Ba, U, Pb and Sr, and depletion of Nb, Ta, P and Ti, suggesting that their magma source was significantly modified by subduction material. These diabases crystallized at ca. 794.7 ± 5.2 Ma from melts produced by about 20% partial melting of a garnet + spinel lherzolite mantle source. The associated gabbros crystallized at 751.5 ± 6.3 Ma and show variable enrichments of Rb, Ba, U, Pb and Sr, depletion of Nb and Ta, and positive Eu and P anomalies. These characters reflect variable degrees (5–30%) of partial melting from a garnet + spinel lherzolite in a mantle wedge source. The OIB type intrusions suggest the possible involvement of a mantle plume at ca. 900 Ma related to the breakup of South China from the Neoproterozoic Rodinia supercontinent. In contrast, the other intrusions suggest the existence of a subduction system along the western or northwestern margin of the Yangtze Block around 840–750 Ma. Such an active subduction system developed immediately after the breakup of Rodinia, implying that either the Yangtze Block was located at the edge of the Rodinia supercontinent, or that the breakup of Rodinia did not occur simultaneously in all the regions." @default.
• W2017806419 created "2016-06-24" @default.
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• W2017806419 date "2011-08-01" @default.
• W2017806419 modified "2023-09-28" @default.
• W2017806419 title "Neoproterozoic subduction tectonics of the northwestern Yangtze Block in South China: Constrains from zircon U–Pb geochronology and geochemistry of mafic intrusions in the Hannan Massif" @default.
• W2017806419 cites W1759011698 @default.
• W2017806419 cites W1879830714 @default.
• W2017806419 cites W1964856459 @default.
• W2017806419 cites W1970182272 @default.
• W2017806419 cites W1973191271 @default.
• W2017806419 cites W1973944753 @default.
• W2017806419 cites W1976308098 @default.
• W2017806419 cites W1976979379 @default.
• W2017806419 cites W1978484550 @default.
• W2017806419 cites W1979854640 @default.
• W2017806419 cites W1980252116 @default.
• W2017806419 cites W1981970533 @default.
• W2017806419 cites W1983212361 @default.
• W2017806419 cites W1984334602 @default.
• W2017806419 cites W1985667662 @default.
• W2017806419 cites W1986336642 @default.
• W2017806419 cites W1992117512 @default.
• W2017806419 cites W1997774186 @default.
• W2017806419 cites W1999766920 @default.
• W2017806419 cites W2001551552 @default.
• W2017806419 cites W2002986995 @default.
• W2017806419 cites W2004428335 @default.
• W2017806419 cites W2005078833 @default.
• W2017806419 cites W2005239218 @default.
• W2017806419 cites W2006981888 @default.
• W2017806419 cites W2009805159 @default.
• W2017806419 cites W2009859519 @default.
• W2017806419 cites W2011176927 @default.
• W2017806419 cites W2013451364 @default.
• W2017806419 cites W2014495917 @default.
• W2017806419 cites W2015088208 @default.
• W2017806419 cites W2016005363 @default.
• W2017806419 cites W2022859730 @default.
• W2017806419 cites W2034843577 @default.
• W2017806419 cites W2035224483 @default.
• W2017806419 cites W2037941752 @default.
• W2017806419 cites W2038904473 @default.
• W2017806419 cites W2041314988 @default.
• W2017806419 cites W2048240400 @default.
• W2017806419 cites W2053548789 @default.
• W2017806419 cites W2059027044 @default.
• W2017806419 cites W2061330424 @default.
• W2017806419 cites W2065297279 @default.
• W2017806419 cites W2077112971 @default.
• W2017806419 cites W2078887974 @default.
• W2017806419 cites W2085102081 @default.
• W2017806419 cites W2087494921 @default.
• W2017806419 cites W2089038963 @default.
• W2017806419 cites W2089421065 @default.
• W2017806419 cites W2095601024 @default.
• W2017806419 cites W2108538927 @default.
• W2017806419 cites W2122545777 @default.
• W2017806419 cites W2127888210 @default.
• W2017806419 cites W2138522501 @default.
• W2017806419 cites W2139788788 @default.
• W2017806419 cites W2152292599 @default.
• W2017806419 cites W2162868035 @default.
• W2017806419 cites W2172079182 @default.
• W2017806419 cites W2317096966 @default.
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• W2017806419 doi "https://doi.org/10.1016/j.precamres.2011.05.002" @default.
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