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• W2282831130 endingPage "256" @default.
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• W2282831130 abstract "The Lützow–Holm Complex (LHC) of East Antarctica forms part of the Neoproterozoic–Cambrian high-grade metamorphic segment of the East African–Antarctic Orogen. Here we present new petrological, geochemical, and zircon U–Pb and Lu–Hf isotopic data for meta-igneous rocks including charnockite, felsic gneiss, metagabbro, and mafic granulite from the LHC and evaluate the Neoarchean to Early Paleoproterozoic (ca. 2.5 Ga) and Early Neoproterozoic (ca. 1.0 Ga) arc magmatic events. The trace element geochemical signatures reveal a volcanic arc affinity for the charnockites from Sudare Rocks and Vesleknausen and felsic gneiss from Rundvågshetta, suggesting that the protoliths of these rocks were derived from felsic arc magmas. In contrast, metagabbros from Skallevikshalsen and Austhovde, occurring as boudins in metasediments, show non-arc signatures (within-plate basalt or mid-oceanic ridge basalt). The upper intercept ages of magmatic zircons in charnockite plotted on concordia diagrams yielded 2508 ± 14 Ma (Sudare Rocks) and 2490 ± 18 Ma (Vesleknausen), clearly suggesting a Neoarchean to Early Paleoproterozoic arc magmatic event. A subsequent thermal event during Early Neoproterozoic traced by 206Pb/238U age of oscillatory-zoned core of zircon in mafic granulite from Langhovde (973 ± 10 Ma) is consistent with a similar Early Neoproterozoic magmatic event reported from the LHC, suggesting a second stage of arc magmatism. The timing of peak metamorphism has been inferred from 206Pb/238U mean ages of structureless zircons in metagabbros from Skallevikshalsen and Austhovde, mafic granulite from Langhovde, and felsic gneiss from Rundvågshetta in the range of 551 ± 5.4 to 584 ± 5.0 Ma. Zircon Lu–Hf data of Neoarchean charnockites from Sudare Rocks and Vesleknausen indicate that the protolith magma was sourced from Paleo- to Neoarchean juvenile components mixed with reworked ancient crustal materials. Protolith magmatic rock of the felsic gneiss from Rundvågshetta might have been sourced from reworked Paleoarchean crust. In contrast, metagabbros from Skallevikshalsen and Austhovde were derived from the Paleoproterozoic reworked crust. The results of this study suggest the occurrence of several discrete crustal fragments of ca. 2.5 Ga and ca. 1.0 Ga juvenile magmatic arcs in the southwestern part of the LHC, which amalgamated during the latest Neoproterozoic collisional event related to the final stage of assembly of the Gondwana supercontinent." @default.
• W2282831130 created "2016-06-24" @default.
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• W2282831130 date "2016-10-01" @default.
• W2282831130 modified "2023-10-16" @default.
• W2282831130 title "Neoarchean–Early Paleoproterozoic and Early Neoproterozoic arc magmatism in the Lützow–Holm Complex, East Antarctica: Insights from petrology, geochemistry, zircon U–Pb geochronology and Lu–Hf isotopes" @default.
• W2282831130 cites W1961508529 @default.
• W2282831130 cites W1965679011 @default.
• W2282831130 cites W1966081220 @default.
• W2282831130 cites W1966218310 @default.
• W2282831130 cites W1967005613 @default.
• W2282831130 cites W1967571498 @default.
• W2282831130 cites W1967867454 @default.
• W2282831130 cites W1969859799 @default.
• W2282831130 cites W1971892298 @default.
• W2282831130 cites W1972893584 @default.
• W2282831130 cites W1977263417 @default.
• W2282831130 cites W1977753588 @default.
• W2282831130 cites W1993407228 @default.
• W2282831130 cites W2000249710 @default.
• W2282831130 cites W2000269533 @default.
• W2282831130 cites W2000326123 @default.
• W2282831130 cites W2005257640 @default.
• W2282831130 cites W2005569462 @default.
• W2282831130 cites W2008691821 @default.
• W2282831130 cites W2009251618 @default.
• W2282831130 cites W2010543867 @default.
• W2282831130 cites W2011549988 @default.
• W2282831130 cites W2016681679 @default.
• W2282831130 cites W2018382209 @default.
• W2282831130 cites W2021788085 @default.
• W2282831130 cites W2022859730 @default.
• W2282831130 cites W2025052845 @default.
• W2282831130 cites W2028502448 @default.
• W2282831130 cites W2028864600 @default.
• W2282831130 cites W2034472228 @default.
• W2282831130 cites W2036208401 @default.
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• W2282831130 cites W2041128216 @default.
• W2282831130 cites W2041539208 @default.
• W2282831130 cites W2044175358 @default.
• W2282831130 cites W2046239832 @default.
• W2282831130 cites W2046362351 @default.
• W2282831130 cites W2052785062 @default.
• W2282831130 cites W2054590577 @default.
• W2282831130 cites W2054886656 @default.
• W2282831130 cites W2058741861 @default.
• W2282831130 cites W2059013108 @default.
• W2282831130 cites W2064133236 @default.
• W2282831130 cites W2064834605 @default.
• W2282831130 cites W2068403951 @default.
• W2282831130 cites W2069333276 @default.
• W2282831130 cites W2070944939 @default.
• W2282831130 cites W2074017604 @default.
• W2282831130 cites W2077048854 @default.
• W2282831130 cites W2077474983 @default.
• W2282831130 cites W2083846147 @default.
• W2282831130 cites W2087611505 @default.
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• W2282831130 doi "https://doi.org/10.1016/j.lithos.2016.02.010" @default.
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