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Petrogenesis and tectonic setting of the Shiduolong skarn Pb-Zn deposit in the East Kunlun Orogenic Belt: Constraints from whole-rock geochemical, zircon U-Pb and Hf isotope analyses

文献类型：期刊论文

作者Wang, Yongbin1; Guo, Yunpeng1,2; Zeng, Qingdong1,2; Guo, Lixiang1,2
刊名GEOLOGICAL JOURNAL
出版日期2018-05-01
卷号53期号:3页码:1022-1038
关键词East Kunlun Orogenic Belt Hf isotopes Shiduolong zircon U-Pb age
ISSN号0072-1050
DOI10.1002/gj.2941
文献子类Article
英文摘要The Shiduolong Pb-Zn deposit, located in the East Kunlun Orogenic Belt, is a medium-scale skarn deposit (0.4 Mt metal reserves with a grade of 1.46% Pb and 4.38% Zn). The mineralization occurs along the contact zone between Carboniferous marbles and Triassic quartz diorite and granodiorite. Zircon LA-ICP-MS dating indicates that the Shiduolong quartz diorite is coeval with the granodiorite (245Ma). Whole-rock geochemical analysis shows that both phases are high-K calc-alkaline metaluminous (A/CNK<1) I-type granites with similar rare earth (REE) element contents and (La/Yb)(N) values, indicating that they formed via crystal fractionation from a common parental magma. However, the granodiorite has higher SiO2 contents, lower total Fe2O3, TiO2, MgO, Sr, and Ba contents, and more negative Eu anomalies than the quartz diorites, suggesting that the granodiorite experienced stronger fractional crystallization during magmatic evolution. The zircon epsilon(Hf)(t) values of the quartz diorite range from -3.3 to 1.6. The two-stage model ages (T-DM2) vary from 1,175 to 1,487Ma. Hf isotope data indicate that the magma of the quartz diorite was mainly derived from partial melting of Mesoproterozoic lower crustal materials with contributions from mantle-derived magmas. Combined with the regional tectonic and magmatic activities, we propose that the Shiduolong Pb-Zn deposit might have formed during the hydrothermal event associated with the release of magmatic water from the granodiorite-quartz diorite intrusions, which were generated by the subduction of the Paleo-Tethys oceanic slab in the Early Triassic.
WOS关键词MAFIC MICROGRANULAR ENCLAVES ; TIBET PLATEAU IMPLICATIONS ; K CALC-ALKALINE ; QINGHAI PROVINCE ; LU-HF ; GRANITIC-ROCKS ; PALEO-TETHYS ; O ISOTOPES ; NW CHINA ; GEOCHRONOLOGY
WOS研究方向Geology
语种英语
WOS记录号WOS:000431643300016
出版者WILEY
资助机构Postdoctoral Science Foundation of China(2015 M581165) ; Postdoctoral Science Foundation of China(2015 M581165) ; National Natural Science Foundation of China(41502090) ; National Natural Science Foundation of China(41502090) ; Scholarship Program for Visiting Scholars(201604910054) ; Scholarship Program for Visiting Scholars(201604910054) ; Postdoctoral Science Foundation of China(2015 M581165) ; Postdoctoral Science Foundation of China(2015 M581165) ; National Natural Science Foundation of China(41502090) ; National Natural Science Foundation of China(41502090) ; Scholarship Program for Visiting Scholars(201604910054) ; Scholarship Program for Visiting Scholars(201604910054) ; Postdoctoral Science Foundation of China(2015 M581165) ; Postdoctoral Science Foundation of China(2015 M581165) ; National Natural Science Foundation of China(41502090) ; National Natural Science Foundation of China(41502090) ; Scholarship Program for Visiting Scholars(201604910054) ; Scholarship Program for Visiting Scholars(201604910054) ; Postdoctoral Science Foundation of China(2015 M581165) ; Postdoctoral Science Foundation of China(2015 M581165) ; National Natural Science Foundation of China(41502090) ; National Natural Science Foundation of China(41502090) ; Scholarship Program for Visiting Scholars(201604910054) ; Scholarship Program for Visiting Scholars(201604910054)
源URL[http://ir.iggcas.ac.cn/handle/132A11/88288]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Wang, Yongbin
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Yongbin,Guo, Yunpeng,Zeng, Qingdong,et al. Petrogenesis and tectonic setting of the Shiduolong skarn Pb-Zn deposit in the East Kunlun Orogenic Belt: Constraints from whole-rock geochemical, zircon U-Pb and Hf isotope analyses[J]. GEOLOGICAL JOURNAL,2018,53(3):1022-1038.
APA Wang, Yongbin,Guo, Yunpeng,Zeng, Qingdong,&Guo, Lixiang.(2018).Petrogenesis and tectonic setting of the Shiduolong skarn Pb-Zn deposit in the East Kunlun Orogenic Belt: Constraints from whole-rock geochemical, zircon U-Pb and Hf isotope analyses.GEOLOGICAL JOURNAL,53(3),1022-1038.
MLA Wang, Yongbin,et al."Petrogenesis and tectonic setting of the Shiduolong skarn Pb-Zn deposit in the East Kunlun Orogenic Belt: Constraints from whole-rock geochemical, zircon U-Pb and Hf isotope analyses".GEOLOGICAL JOURNAL 53.3(2018):1022-1038.

入库方式： OAI收割

来源：地质与地球物理研究所

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