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• W4283161656 endingPage "18" @default.
• W4283161656 startingPage "1" @default.
• W4283161656 abstract "Molybdenum isotope is a diagnostic tracer for crustal and mantle components in arc magmatism. However, the mechanism of Mo isotopic variation in arc magmas is still debated, e.g., input of different subduction components into the mantle wedge versus isotopic fractionation during dehydration of subducted slab. Here we present whole-rock Mo-Sr-Nd-Hf-Pb isotopic data for the Continental Arc Basalt (CAB) and Back Arc Basalt (BAB) from Java, Indonesia, to investigate the role of slab inputs in Mo isotopic variation of the Sunda arc magmatism. The CAB samples have variable K 2 O contents (0.44–2.49 wt%) and are mainly classified as calc-alkaline series, while the BAB samples are shoshonitic with markedly high K 2 O contents (2.12–6.90 wt%) relative to the CABs. The Java CABs and BABs have similar Mo isotopic compositions (δ 98/95 Mo = −0.65 to −0.07‰ and −0.66 to −0.07‰, respectively, relative to NIST SRM3134), suggesting that such a significant Mo isotopic variation should not be caused solely by the isotopic fractionation during the subduction. Instead, δ 98/95 Mo values of the Java basalts positively correlate with Pb isotopic ratios. This implies that the Mo isotopic variations in the Java arc rocks should result from the metasomatism in the mantle wedge by hybrid agents, including varying proportions of melts from subducted sediments (with heavy Mo isotope) and melts from the subducted altered upper oceanic crust (SAOC) (with light Mo isotope). The light Mo isotope of the Java arc rocks, compared with the Mariana arc basalts, suggests that melts from the SAOC have much lighter Mo isotopic compositions than the components from the lower oceanic crust. Thus, Mo isotope has great potential to distinguish the components from the subducted upper and lower oceanic crust. The Java CABs show along-arc variations in Mo-Sr-Nd-Hf-Pb isotopes, which is related closely with the thermal status of the subducted slab. Upwelling of the asthenosphere due to the slab tearing beneath the Java arc might have enhanced the partial melting of subducted sediments nearby the slab window. The complicated subduction system in the Sunda arc has strongly controlled the geochemical composition of arc magmas, which changes with input of different subduction components into the mantle wedge along arc." @default.
• W4283161656 created "2022-06-21" @default.
• W4283161656 creator A5012288706 @default.
• W4283161656 creator A5037732173 @default.
• W4283161656 creator A5050734459 @default.
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• W4283161656 creator A5068285146 @default.
• W4283161656 creator A5071699768 @default.
• W4283161656 creator A5079668924 @default.
• W4283161656 date "2022-09-01" @default.
• W4283161656 modified "2023-10-17" @default.
• W4283161656 title "Molybdenum isotopic constraint from Java on slab inputs to subduction zone magmatism" @default.
• W4283161656 cites W1034999313 @default.
• W4283161656 cites W107967088 @default.
• W4283161656 cites W1524978295 @default.
• W4283161656 cites W1534749586 @default.
• W4283161656 cites W1557082721 @default.
• W4283161656 cites W1615298503 @default.
• W4283161656 cites W1636995053 @default.
• W4283161656 cites W1757258416 @default.
• W4283161656 cites W1828329906 @default.
• W4283161656 cites W1950511920 @default.
• W4283161656 cites W1965410050 @default.
• W4283161656 cites W1971413741 @default.
• W4283161656 cites W1988521845 @default.
• W4283161656 cites W1989475913 @default.
• W4283161656 cites W1990479851 @default.
• W4283161656 cites W1990804700 @default.
• W4283161656 cites W1991363467 @default.
• W4283161656 cites W1995564745 @default.
• W4283161656 cites W1997153215 @default.
• W4283161656 cites W2000174130 @default.
• W4283161656 cites W2000681610 @default.
• W4283161656 cites W2004462387 @default.
• W4283161656 cites W2007488516 @default.
• W4283161656 cites W2008073536 @default.
• W4283161656 cites W2011973230 @default.
• W4283161656 cites W2012291299 @default.
• W4283161656 cites W2013564328 @default.
• W4283161656 cites W2013785398 @default.
• W4283161656 cites W2014832120 @default.
• W4283161656 cites W2026634075 @default.
• W4283161656 cites W2032800272 @default.
• W4283161656 cites W2035283420 @default.
• W4283161656 cites W2035664841 @default.
• W4283161656 cites W2040029696 @default.
• W4283161656 cites W2042451718 @default.
• W4283161656 cites W2051462690 @default.
• W4283161656 cites W2053907914 @default.
• W4283161656 cites W2053964247 @default.
• W4283161656 cites W2056035061 @default.
• W4283161656 cites W2059146037 @default.
• W4283161656 cites W2066423423 @default.
• W4283161656 cites W2074440625 @default.
• W4283161656 cites W2075921071 @default.
• W4283161656 cites W2076360315 @default.
• W4283161656 cites W2076521818 @default.
• W4283161656 cites W2078840355 @default.
• W4283161656 cites W2080843712 @default.
• W4283161656 cites W2087547487 @default.
• W4283161656 cites W2087663351 @default.
• W4283161656 cites W2091144504 @default.
• W4283161656 cites W2092557111 @default.
• W4283161656 cites W2093394213 @default.
• W4283161656 cites W2093814937 @default.
• W4283161656 cites W2102062459 @default.
• W4283161656 cites W2104015130 @default.
• W4283161656 cites W2108597026 @default.
• W4283161656 cites W2109071061 @default.
• W4283161656 cites W2111006863 @default.
• W4283161656 cites W2113213369 @default.
• W4283161656 cites W2117509084 @default.
• W4283161656 cites W2121609548 @default.
• W4283161656 cites W2121755657 @default.
• W4283161656 cites W2128862285 @default.
• W4283161656 cites W2148372410 @default.
• W4283161656 cites W2156107051 @default.
• W4283161656 cites W2166679308 @default.
• W4283161656 cites W2171694098 @default.
• W4283161656 cites W2325019720 @default.
• W4283161656 cites W2390359510 @default.
• W4283161656 cites W2400886993 @default.
• W4283161656 cites W2512217421 @default.
• W4283161656 cites W2528318859 @default.
• W4283161656 cites W2560591723 @default.
• W4283161656 cites W2775302579 @default.
• W4283161656 cites W2793626260 @default.
• W4283161656 cites W2944908090 @default.
• W4283161656 cites W2979429794 @default.
• W4283161656 cites W2980407547 @default.
• W4283161656 cites W3010275127 @default.
• W4283161656 cites W3044757877 @default.
• W4283161656 cites W3048341792 @default.
• W4283161656 cites W3153985153 @default.
• W4283161656 cites W3156469452 @default.
• W4283161656 cites W3169884959 @default.
• W4283161656 cites W4200587986 @default.
• W4283161656 doi "https://doi.org/10.1016/j.gca.2022.06.009" @default.

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