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您的检索式：作者名="GENG Xinxia"
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| 1 | A review of the geological characteristics and geodynamic setting of Late Paleozoic porphyry copper deposits in the Junggar region, Xinjiang Uygur Autonomous Region, Northwest China显示文摘 | Fuquan Yang Jingwen Mao Franco Pirajno Shenghao Yan Guoren Liu Gang Zhou Zhixin Zhang Feng Liu Xinxia Geng Chunli Guo | 2011 | Journal of Asian Earth Sciences2011，，： | 1 |
| 2 | Geology and geochemistry of the Qiaoxiahala Fe-Cu-Au deposit, Junggar region, northwest China显示文摘 | Li Qiang Zhang Zhixin Geng Xinxia | 2014 | Ore Geology Reviews2014，57，： | 1 |
| 3 | Geochronology and Geochemistry of the Early Paleozoic Ore-host Volcanic Sequence in the Kalatag Area,East Tianshan,NW China:Implications for the Tectonic Evolution显示文摘The East Tianshan contains many late Paleozoic magmatic and polymetallic deposits.Recent studies demonstrate that the early Paleozoic volcanic rocks discovered in the northern region of East Tianshan can be subdivided into the Daliugou,Hongliuxia and Kalatag formations.Here,we report zircon U-Pb ages of volcanic rocks and quartz diorite porphyry,together with whole-rock geochemical and Sr-Nd isotope data of early Paleozoic volcanic rocks,in order to investigate their petrogenesis and geodynamic setting.Zircon U-Pb analyses of the rocks suggest that the Kalatag Formation formed at ca.438-413 Ma.Geochemical characteristics of the early Paleozoic volcanic rocks exhibit typical subduction-related features.They have high Mg^(#)(44-75),positiveε_(Nd)(t)values(0.25-7.88),low^(87)Sr/^(86)Sr ratios(0.70457 to 0.70588)and young two-stage Hf isotope model ages(551-446 Ma),consistent with a depleted mantle origin with limited crustal contamination.The basaltic andesite and andesite have relatively high MgO contents(6.1-9.4 wt%),suggesting that they belong to high-magnesian andesites.They were most likely derived from the partial melting of mantle peridotite caused by the addition of fluids released by subducted oceanic slab.Based on regional geology,geochemical characteristics and previous studies,we infer that the southward subduction of the Junggar Ocean slab resulted in the generation of early Paleozoic volcanic rocks and arc setting-related metallogenic systems in the Kalatag area. | ZHANG Zhenlong YANG Fuquan ZHOU Taofa GENG Xinxia ZHANG Zhixin YANG Chengdong QIU Zhanlin | 2023 | Acta Geologica Sinica(English Edition)2023，97，5： | 0 |
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