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• W2519498575 endingPage "328" @default.
• W2519498575 startingPage "315" @default.
• W2519498575 abstract "Abstract Mesozoic intrusions, including MORB-type gabbros, high-Mg diorites, calc-alkaline diorites and granodiorites, were exposed in the Ando microcontinent that is bounded between the Qiangtang and Lhasa terranes. Discoveries of these Mesozoic intrusions have provided new petrogenetic constraints on our understanding of Bangong-Nujiang ocean evolution. Zircon U–Pb dating shows that these intrusions formed in the early-middle Jurassic (174–177 Ma). The gabbros have relatively flat REE distribution patterns, which is analogous to the geochemical features of MORB. Their positive e Nd (t) values (e Nd (t) = 4.4–5.5) are consistent with those of ophiolites along the Bangong-Nujiang suture zone. These gabbros are also characterized by enrichments of fluid-sensitive elements and negative to positive Nb anomalies, indicative of the influence of subduction-related compositions in their mantle source. These features suggest that the gabbros were most likely originated from asthenosphere-derived melts metasomatized by enriched lithospheric mantle during the upwelling. The high-Mg diorites are characterized by typical features of high compatible elements (MgO = 8.3–10.24 wt%, Cr = 400–547 ppm, Ni = 120–152 ppm), high Mg # (70–74) and low Sr/Y ratios. Their high initial 87 Sr/ 86 Sr isotopic ratios and negative e Nd (t) values (− 10.5 to − 10.8), together with their sanukitic characteristics, imply that the high-Mg diorites were probably produced by partial melting of mantle peridotites metasomatized by slab-derived melts and aqueous fluids. The calc-alkaline diorites have relatively high MgO (4.04–5.50 wt%), Cr, Ni contents and Mg # (56–59), as well as high ( 86 Sr/ 87 Sr) i ratios and negative e Nd (t) values (− 7.5 to − 7.3), suggesting that they were most likely formed by partial melting of the Ando basement rocks with significant input of mantle components. The granodiorites are peraluminous and have higher ( 86 Sr/ 87 Sr) i ratios and more negative e Nd (t) values (− 10.6 to − 10.8), similar to those of the granitic gneisses of the Ando basement, suggesting partial melting of the Ando basement. Taking into account the spatial and temporal distribution of the Mesozoic magmatic rocks in the Southern Qiangtang terrane, we suggest that the formation of the Early-Middle Jurassic magmatic “flare-up” in the Southern Qiangtang terrane was related to the asthenospheric upwelling triggered by the roll-back of the subducted Bangong–Nujiang oceanic slab." @default.
• W2519498575 created "2016-09-23" @default.
• W2519498575 creator A5002578230 @default.
• W2519498575 creator A5029512878 @default.
• W2519498575 creator A5030863883 @default.
• W2519498575 creator A5049854737 @default.
• W2519498575 creator A5061481399 @default.
• W2519498575 creator A5068285146 @default.
• W2519498575 creator A5088305376 @default.
• W2519498575 date "2016-11-01" @default.
• W2519498575 modified "2023-10-12" @default.
• W2519498575 title "Middle Jurassic MORB-type gabbro, high-Mg diorite, calc-alkaline diorite and granodiorite in the Ando area, central Tibet: Evidence for a slab roll-back of the Bangong-Nujiang Ocean" @default.
• W2519498575 cites W1064157222 @default.
• W2519498575 cites W1529815382 @default.
• W2519498575 cites W1566514932 @default.
• W2519498575 cites W1569606643 @default.
• W2519498575 cites W1649557696 @default.
• W2519498575 cites W1697907569 @default.
• W2519498575 cites W1959048442 @default.
• W2519498575 cites W1970363584 @default.
• W2519498575 cites W1970890388 @default.
• W2519498575 cites W1971685925 @default.
• W2519498575 cites W1973012528 @default.
• W2519498575 cites W1979705656 @default.
• W2519498575 cites W1990479851 @default.
• W2519498575 cites W1990740187 @default.
• W2519498575 cites W1991712311 @default.
• W2519498575 cites W1996728434 @default.
• W2519498575 cites W1998707404 @default.
• W2519498575 cites W1999406584 @default.
• W2519498575 cites W2003328691 @default.
• W2519498575 cites W2004780129 @default.
• W2519498575 cites W2004993774 @default.
• W2519498575 cites W2005769501 @default.
• W2519498575 cites W2009637151 @default.
• W2519498575 cites W2014935809 @default.
• W2519498575 cites W2018282154 @default.
• W2519498575 cites W2019034794 @default.
• W2519498575 cites W2019748000 @default.
• W2519498575 cites W2020152301 @default.
• W2519498575 cites W2021987309 @default.
• W2519498575 cites W2022859730 @default.
• W2519498575 cites W2023320566 @default.
• W2519498575 cites W2024998721 @default.
• W2519498575 cites W2027305590 @default.
• W2519498575 cites W2032464438 @default.
• W2519498575 cites W2036174339 @default.
• W2519498575 cites W2036803773 @default.
• W2519498575 cites W2038328935 @default.
• W2519498575 cites W2038748953 @default.
• W2519498575 cites W2038775297 @default.
• W2519498575 cites W2041774199 @default.
• W2519498575 cites W2042768776 @default.
• W2519498575 cites W2044921168 @default.
• W2519498575 cites W2045538797 @default.
• W2519498575 cites W2047938785 @default.
• W2519498575 cites W2051402261 @default.
• W2519498575 cites W2052579497 @default.
• W2519498575 cites W2053721096 @default.
• W2519498575 cites W2053761887 @default.
• W2519498575 cites W2054330117 @default.
• W2519498575 cites W2058306817 @default.
• W2519498575 cites W2065520860 @default.
• W2519498575 cites W2067420036 @default.
• W2519498575 cites W2067685960 @default.
• W2519498575 cites W2068157565 @default.
• W2519498575 cites W2068668821 @default.
• W2519498575 cites W2072206013 @default.
• W2519498575 cites W2077291658 @default.
• W2519498575 cites W2082800626 @default.
• W2519498575 cites W2093989613 @default.
• W2519498575 cites W2094985587 @default.
• W2519498575 cites W2095601024 @default.
• W2519498575 cites W2104680596 @default.
• W2519498575 cites W2105269962 @default.
• W2519498575 cites W2106006247 @default.
• W2519498575 cites W2107790246 @default.
• W2519498575 cites W2107841409 @default.
• W2519498575 cites W2110496294 @default.
• W2519498575 cites W2114856901 @default.
• W2519498575 cites W2115518283 @default.
• W2519498575 cites W2116661481 @default.
• W2519498575 cites W2126229897 @default.
• W2519498575 cites W2126790073 @default.
• W2519498575 cites W212707111 @default.
• W2519498575 cites W2127994322 @default.
• W2519498575 cites W2128209044 @default.
• W2519498575 cites W2128624170 @default.
• W2519498575 cites W2130845410 @default.
• W2519498575 cites W2133042542 @default.
• W2519498575 cites W2133179126 @default.
• W2519498575 cites W2135830789 @default.
• W2519498575 cites W2136162288 @default.
• W2519498575 cites W2140732612 @default.
• W2519498575 cites W2144583290 @default.
• W2519498575 cites W2146117929 @default.
• W2519498575 cites W2146171910 @default.
• W2519498575 cites W2149787537 @default.

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