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The magmatic-hydrothermal-mineralized center of Bairong-Bairongxi porphyry Cu-Mo district at the Gangdese belt, southern Tibet

文献类型：期刊论文

作者Zou XinYu4,5,6; Qin KeZhang4,5,6; Li GuangMing4,5,6; Zhang XiPing3; Zhao JunXing4,6; Zhang PeiPei2; Zhang XiaNan4,6; Zhang JinShu1
刊名ACTA PETROLOGICA SINICA
出版日期2019
卷号35期号:7页码:2026-2044
关键词Brong-Bairongxi porphyry Cu-Mo district Zircon U-Pb age Molybdenite Re-Os age Hydrothermal alteration Magmatic intrusion series Miocene Gangdese porphyry copper belt
ISSN号1000-0569
DOI10.18654/1000-0569/2019.07.06
英文摘要The Bairong-Bairongxi porphyry Cu-Mo district is located in the middle part of Gangdese porphyry copper belt in southern Tibet, China. It has sparse mineralization, complicated magmatic intrusions, no central alteration zonation and no typical ore-related porphyry. Therefore, 'where is the magmatic-hydrothermal-mineralized center of Bairong-Bairongxi' is becoming the key of further studies. To address this issue, based on detailed geological survey and drills records, combined with the observation of microscope, zircon U-Pb dating and molybdenite Re-Os dating analysis, we concluded the following points: (1) The Bairong-Bairongxi is not two separated ore districts but belongs to an united porphyry mineralization system; (2) The magmatic sequences include biotite monzonitic granite, monzonitic granite porphyry (13.9 +/- 0.2Ma), granodiorite porphyry (13.8 +/- 0.2Ma), dacite porphyry (12.6 +/- 0.4Ma) and lamprophyre (11.1 +/- 0.2Ma); (3) The Re-Os age of molybdenite is from 13.35 +/- 0.19Ma to 13.82 +/- 0.20Ma; (4) The magmatic-hydrothermal-mineralized center is in its central regions; (5) Most of drillings are located in the argillic alteration zone but deep drillings revealed medium-high temperature veinlets, indicating the alteration has its origin in the deep. As mentioned above, Bairong-Bairongxi is in the top of a Cu-Mo porphyry system with clear magmatic-hydrothermal-mineralized center, and has great potential in Cu-Mo mineralization in the deep. This work gives an overview picture of Bairong-Bairongxi porphyry Cu-Mo district and is helpful for further exploration and studies.
WOS关键词ZIRCON U-PB ; LHASA TERRANE ; GEOCHRONOLOGICAL CONSTRAINTS ; ISOTOPIC COMPOSITIONS ; HF ISOTOPES ; ROCKS ; DEPOSIT ; ND ; SUBDUCTION ; ORIGIN
WOS研究方向Geology
语种英语
WOS记录号WOS:000491151100006
出版者SCIENCE PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/93876]  
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Qin KeZhang
作者单位1.Tibet Univ, Lassa 850000, Peoples R China
2.Yunnan Copper Co Ltd, Kunming 650000, Yunnan, Peoples R China
3.China Copper Co Ltd, Beijing 100082, Peoples R China
4.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zou XinYu,Qin KeZhang,Li GuangMing,et al. The magmatic-hydrothermal-mineralized center of Bairong-Bairongxi porphyry Cu-Mo district at the Gangdese belt, southern Tibet[J]. ACTA PETROLOGICA SINICA,2019,35(7):2026-2044.
APA Zou XinYu.,Qin KeZhang.,Li GuangMing.,Zhang XiPing.,Zhao JunXing.,...&Zhang JinShu.(2019).The magmatic-hydrothermal-mineralized center of Bairong-Bairongxi porphyry Cu-Mo district at the Gangdese belt, southern Tibet.ACTA PETROLOGICA SINICA,35(7),2026-2044.
MLA Zou XinYu,et al."The magmatic-hydrothermal-mineralized center of Bairong-Bairongxi porphyry Cu-Mo district at the Gangdese belt, southern Tibet".ACTA PETROLOGICA SINICA 35.7(2019):2026-2044.

入库方式： OAI收割

来源：地质与地球物理研究所

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