Water-sulfur-rich, oxidised adakite magmas are likely porphyry copper progenitors [PDF]
Scientific Reports, 2023 The world’s largest current Cu resource is volcanic arc-hosted, porphyry copper deposits. Whether unusual parental magmas or fortuitous combinations of processes accompanying emplacement of common parental arc magmas (e.g., basalt) is required for ore ...
Timothy S. J. Leong +2 more
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Understanding subduction infancy to mature subduction in Southwest Japan via the self-consistent formation of a weak slab interface [PDF]
Scientific Reports, 2023 The weak slab interface controls long-term subduction dynamics. A weak hydrous layer at the slab interface promotes mechanical decoupling between the forearc mantle and the subducting slab and converts a hot forearc mantle to a cold mantle.
Changyeol Lee, YoungHee Kim
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Petrogenesis and geodynamic implication of the newly recorded Cryogenian Suwaj adakitic magmatism at the eastern Arabian-Shield [PDF]
Scientific ReportsRecent reconnaissance geochemical investigations have unveiled Cryogenian magmatism linked to the compressional accretionary phase, contributing to the growth of the Afif Terrane in the eastern Arabian Shield. The Cryogenian Suwaj intrusive suite, within
Mahmoud M. Hassan +10 more
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An overview of adakite petrogenesis
Science Bulletin, 2006 The term adakite was originally proposed to define silica-rich, high Sr/Y and La/Yb volcanic and plutonic rocks derived from melting of the basaltic portion of oceanic crust subducted beneath volcanic arcs. It was also initially believed that adakite only occurs in convergent margins where young and thus still hot oceanic slabs are being subducted, but
Paterno R Castillo
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Unraveling the diversity of Arc volcanism and deep low-frequency tremors in Southwest Japan from numerical modeling [PDF]
Scientific ReportsDifferences in slab dehydration and fluid transport influence the distribution of magmatism and deep low-frequency tremors in subduction zones. Southwest Japan, particularly Kyushu and Shikoku/Chugoku, exhibits significant along-arc variation in the ...
Goeun Ha, Changyeol Lee, YoungHee Kim
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Protracted late Paleozoic volcanic arc activity along the Northeast Asian continental margin [PDF]
Scientific ReportsNortheast Asia is a complex tectonic collage bounded by Paleozoic–Mesozoic internal and peripheral orogens, whose distribution and continuity are obscured by later deformation and magmatic overprinting.
Hyeong Soo Kim +6 more
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Petrography, geochemistry and petrogenesis of high-silica Adakitic rocks from Bayram Abad area in the northwest Neyshabour (Northeast of Iran) [PDF]
پترولوژی, 2021 The volcanic rocks of Bayram Abad area, located 12 km northwest of Neyshabour, are dominated by the Paleogene units composing of dacite and andesite rocks.
mohammad ebrahim fazel valipour
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Evolution of the volcanic mechanism in the central part of the Urumieh-Dokhtar magmatic arc
Journal of Economic Geology, 2021 Introduction Cenozoic volcanic activities in the Urumieh-Dokhtar Magmatic Arc (UDMA) have occurred in three main pulses of Eocene, upper Oligocene-Pliocene, and Pio-Quaternary (Dilek et al., 2010, Sayari, 2015).
Mohammad Sayari , Mortaza Sharifi
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Geosciences, 2022 Adakites are Y- and Yb-depleted, SiO2- and Sr-enriched rocks with elevated Sr/Y and La/Yb ratios originally thought to represent partial melts of subducted metabasalt, based on their association with the subduction of young ( 20 ppm) arc basalts in ...
Pavel Kepezhinskas +3 more
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Crust-Mantle Interaction Controls the Formation of High-Mg Adakitic Rocks: Evidence from Early Cretaceous Intrusive Complexes in Luxi Terrane, North China Craton [PDF]
Lithosphere, 2023 High-Mg adakite rocks preserve crucial information about the crust-mantle interactions during the magma evolution. The Luxi Terrane, southeastern North China Craton, stores a set of Early Cretaceous high-Mg adakite rocks; nevertheless, their petrogenesis
Songyan Liu +6 more
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