Intraplate adakite-like rocks formed by differentiation of mantle-derived mafic magmas: A case study of Eocene intermediate-felsic porphyries in the Machangqing porphyry Cu-Au mining district, SE Tibetan plateau
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Asian Earth Sciences"
DOI: 10.1016/j.jseaes.2020.104364
Abstract: Abstract Intraplate intermediate-felsic adakite-like rocks are widely considered to be generated via partial melting of the mafic lower crust. However, the genesis of phenocrysts of mafic minerals from some adakite-like rocks suggests that they can… read more here.
Keywords: fractional crystallization; mafic magmas; felsic porphyries; crystallization ... See more keywords
Genetic links between granitic and related dioritic rocks in Liaodong Peninsula, China: Sr–Nd–Hf–O isotopic evidence
Sign Up to like & getrecommendations! Published in 2020 at "Lithos"
DOI: 10.1016/j.lithos.2020.105368
Abstract: Abstract Syenogranite and related dioritic rocks (dioritic microgranular enclaves and quartz diorite) from the Early Cretaceous Shihuzhen–Jiudaogou pluton, NE China, were studied to investigate the formation and evolution of the granitic magma driven by the… read more here.
Keywords: 86sr ratios; derived magma; related dioritic; mantle derived ... See more keywords
Crustal anatexis and mantle-derived magmas forming Neoarchean A-type granitoids in Carajás Province, northern Brazil: Petrological evidence and tectonic control
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DOI: 10.1016/j.precamres.2019.105585
Abstract: Abstract Neoarchean hybrid granitoids from the Vila Uniao suite are located in the central portion of the Canaa dos Carajas domain, Carajas Province (Amazonian craton, Brazil), and suggest that magma mixing events played an important… read more here.
Keywords: type granitoids; anatexis mantle; province; evidence ... See more keywords
Mantle-derived helium in foreland basins in Xinjiang, Northwest China
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DOI: 10.1016/j.tecto.2016.11.015
Abstract: Abstract Hydrocarbon-rich natural gases from the Tarim, Junggar, Turpan-Hami and Santanghu basins in Xinjiang, Northwest China have measured 3He/4He ratios from 0.01 to 0.6 times higher than the atmospheric value, indicating 0–7% helium derived from… read more here.
Keywords: basins xinjiang; xinjiang northwest; mantle derived; derived helium ... See more keywords
Zircon and allanite U-Pb ID-TIMS ages of vaugnerites from the Calzadilla pluton, Salamanca (Spain): dating mantle-derived magmatism and post-magmatic subsolidus overprint
Sign Up to like & getrecommendations! Published in 2017 at "Geologica Acta"
DOI: 10.1344/geologicaacta2017.15.4.9
Abstract: Basic to intermediate high-K, high-Mg mantle-derived rocks occur throughout the Iberian Massif and are particularly important in the Tormes Dome, where vaugnerites form several stocks and small plutons. One of the largest and geochemically most… read more here.
Keywords: subsolidus overprint; zircon allanite; calzadilla pluton; mantle derived ... See more keywords