Matches in SemOpenAlex for { <https://semopenalex.org/work/W2769652801> ?p ?o ?g. }
- W2769652801 endingPage "429" @default.
- W2769652801 startingPage "409" @default.
- W2769652801 abstract "Abstract The granitic rocks of the Tarim large igneous province (LIP) are temporally and spatially related to mafic intrusions. However, their tectonic setting and genetic relationship are debated. Here, we report geochemical, and zircon U–Pb–Hf isotopic results for three alkali feldspar granitic plutons in the Halajun area, western margin of the Tarim Block. Zircon U–Pb ages suggest these plutons were emplaced at 268–275 Ma, coeval with the neighbouring mafic–ultramafic complexes and syenitic rocks. These granitic rocks have high contents of SiO 2 , alkalis, Rb, Th, Zr and REE (except Eu), and high ratios of FeO*/MgO and Ga/Al, and show strong depletions in Ba, Sr, Eu, which are commonly observed in the A1-type granites. Zircon Hf isotopes reveal a limited range of ε Hf ( t ) values from −1.0 to +3.5 for different samples from three granitic plutons, obviously higher than those (mostly <0) of the mafic rocks. This distinct difference, along with a Daly gap and small volume of mafic rocks, argues against extreme fractionation of mafic magma as the main origin of the A1-type granites. Instead the A1-type granites were most likely derived from partial melting of newly underplated rocks triggered by the upwelling asthenosphere, followed by extensive fractionation. These A1-type granites were emplaced within an anorogenic setting during the late stage of the Tarim LIP, which possibly lasts for more than 30 Ma. The Piqiang mafic–ultramafic complex directly stemmed from asthenospheric mantle and Halajun A1-type granites represent two manners of vertical crustal growth." @default.
- W2769652801 created "2017-12-04" @default.
- W2769652801 creator A5005963443 @default.
- W2769652801 creator A5014429187 @default.
- W2769652801 creator A5018404473 @default.
- W2769652801 creator A5032764121 @default.
- W2769652801 creator A5059148953 @default.
- W2769652801 creator A5065482772 @default.
- W2769652801 creator A5079815054 @default.
- W2769652801 creator A5082515399 @default.
- W2769652801 creator A5083508445 @default.
- W2769652801 date "2017-11-20" @default.
- W2769652801 modified "2023-10-01" @default.
- W2769652801 title "Derivation of A1-type granites by partial melting of newly underplated rocks related with the Tarim mantle plume" @default.
- W2769652801 cites W1514994218 @default.
- W2769652801 cites W1965829694 @default.
- W2769652801 cites W1968403777 @default.
- W2769652801 cites W1971601845 @default.
- W2769652801 cites W1974356108 @default.
- W2769652801 cites W1974499954 @default.
- W2769652801 cites W1976304054 @default.
- W2769652801 cites W1977410051 @default.
- W2769652801 cites W1977650828 @default.
- W2769652801 cites W1980000874 @default.
- W2769652801 cites W1981207838 @default.
- W2769652801 cites W1982093108 @default.
- W2769652801 cites W1984945854 @default.
- W2769652801 cites W1987792768 @default.
- W2769652801 cites W1990619959 @default.
- W2769652801 cites W1992563879 @default.
- W2769652801 cites W2001030594 @default.
- W2769652801 cites W2005236071 @default.
- W2769652801 cites W2006824932 @default.
- W2769652801 cites W2007412714 @default.
- W2769652801 cites W2010432538 @default.
- W2769652801 cites W2012787043 @default.
- W2769652801 cites W2015207803 @default.
- W2769652801 cites W2016998014 @default.
- W2769652801 cites W2017587656 @default.
- W2769652801 cites W2019940244 @default.
- W2769652801 cites W2022681256 @default.
- W2769652801 cites W2022859730 @default.
- W2769652801 cites W2024920534 @default.
- W2769652801 cites W2029705499 @default.
- W2769652801 cites W2033683037 @default.
- W2769652801 cites W2039485407 @default.
- W2769652801 cites W2039887495 @default.
- W2769652801 cites W2040473333 @default.
- W2769652801 cites W2041989597 @default.
- W2769652801 cites W2042537339 @default.
- W2769652801 cites W2042803182 @default.
- W2769652801 cites W2044401903 @default.
- W2769652801 cites W2044911516 @default.
- W2769652801 cites W2045092985 @default.
- W2769652801 cites W2046961523 @default.
- W2769652801 cites W2050582708 @default.
- W2769652801 cites W2051060113 @default.
- W2769652801 cites W2051273227 @default.
- W2769652801 cites W2056064301 @default.
- W2769652801 cites W2057876276 @default.
- W2769652801 cites W2059250966 @default.
- W2769652801 cites W2060461428 @default.
- W2769652801 cites W2061896955 @default.
- W2769652801 cites W2062920764 @default.
- W2769652801 cites W2066028168 @default.
- W2769652801 cites W2070437901 @default.
- W2769652801 cites W2070645355 @default.
- W2769652801 cites W2073045566 @default.
- W2769652801 cites W2073886299 @default.
- W2769652801 cites W2076691428 @default.
- W2769652801 cites W2080325016 @default.
- W2769652801 cites W2081309949 @default.
- W2769652801 cites W2087593865 @default.
- W2769652801 cites W2089425747 @default.
- W2769652801 cites W2090206242 @default.
- W2769652801 cites W2094985587 @default.
- W2769652801 cites W2100252388 @default.
- W2769652801 cites W2100268729 @default.
- W2769652801 cites W2101042887 @default.
- W2769652801 cites W210382330 @default.
- W2769652801 cites W2107541721 @default.
- W2769652801 cites W2109153037 @default.
- W2769652801 cites W2109323385 @default.
- W2769652801 cites W2112109341 @default.
- W2769652801 cites W2120370873 @default.
- W2769652801 cites W2124044757 @default.
- W2769652801 cites W2128784443 @default.
- W2769652801 cites W2133042542 @default.
- W2769652801 cites W2137126784 @default.
- W2769652801 cites W2140093647 @default.
- W2769652801 cites W2147064838 @default.
- W2769652801 cites W2152384549 @default.
- W2769652801 cites W2157716405 @default.
- W2769652801 cites W2164468447 @default.
- W2769652801 cites W2164517911 @default.
- W2769652801 cites W2165104619 @default.
- W2769652801 cites W2270265925 @default.
- W2769652801 cites W2302502500 @default.