东昆仑哈日扎-那更康切尔银矿区花岗岩年代学、地球化学及岩石成因
摘要
Several large silver deposits occur in the East Kunlun Orogen but their tectonic setting and related Paleo-Tethyan evolution are highly debated.Geochronological and geochemical works on the granites and porphyritic granites in the Harizha-Nagengkangqieer silver deposits of the East Kunlun Orogen were made in this study.LA-ICP-MS zircon U-Pb dating shows that the Harizha granites were emplaced at 255 Ma and the porphyritic granites in both areas between 220 Ma and 224 Ma.Late Permian Harizha granites have high SiO 2 and K 2 O+Na 2 O but low CaO and MgO contents with enriched light rare earth elements, depleted heavy rare earth elements and high field strength elements, negative Eu anomalies, high 基金项目：
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Zhongyuan Ma, Jiaxing Chai, Zhang Aikui, 等. 东昆仑哈日扎-那更康切尔银矿区花岗岩年代学、地球化学及岩石成因[J]. Earth Science-Journal of China University of Geosciences, 2024.
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