The origin of volatiles in the Emeishan large igneous province, China: Constraints from chemical and C–He–Ar isotopic compositions of volatiles in picrites and basalts

The Emeishan large igneous province (LIP) consists of Permian flood basalts and coeval intrusive rocks with compositions varying from mafic–ultramafic rocks to syenites and granites. The volatiles in the Emeishan LIP are dominated by H2O with high H2, indicating that the plume‐derived magma was gene...

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Veröffentlicht in:	Geological journal (Chichester, England) England), 2021-07, Vol.56 (7), p.3626-3643
Hauptverfasser:	Tang, Qingyan, Bao, Jian, Su, Tianbao, Xu, Shihai, Zhang, Jiahe, Song, Hong
Format:	Artikel
Sprache:	eng
Schlagworte:	Basalt Carbon dioxide Composition Contamination Continental crust Degassing Emeishan large igneous province He–Ar isotopes Homology Hydrogen sulfide Isotope ratios Isotopes Lava Magma Methane Oceanic crust Olivine Organic carbon Permian picrite Pyroxenes Ratios Rocks Saturation Sediments Sulfur Sulfur dioxide sulphide‐bearing ore deposit Sulphur Ultramafic materials Ultramafic rocks Volatile compounds Volatiles
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