Geology and mineralization of the Tiegelongnan supergiant porphyry-epithermal Cu(Au, Ag) deposit(10 Mt) in western Tibet, China: A review  

作　　者：Huan-huan Yang Qin Wang Yan-bo Li Bin Lin Yang Song Yi-yun Wang Wen He Hong-wei Li She Li Jian-li Li Chang-cheng Liu Shi-bin Feng Tang Xin Xue-lian Fu Xin-juan Liang Qi Zhang Bei-qi Wang Yang Li 

机构地区：[1]MNR Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,China [2]College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China [3]No.5 Geological Brigade of the Tibet Bureau of Geology and Mineral Exploration and Development,Golmud 816000,China [4]Chengdu Center of China Geological Survey,Ministry of Natural Resources,Chengdu 610081,China [5]Chinalco Tibet Mining Co.,Ltd.,Lhasa 850000,China [6]School of Earth Sciences and Resources,China University of Geosciences(Beijing),Beijing 100083,China

出　　处：《China Geology》2022年第1期136-159,共24页中国地质（英文）

基　　金：funded by the National Natural Science Foundation of China(42002103);the Technical Service for Quality Monitoring of Mineral Exploration in Tiegelongnan Mining Area,Duolong Ore district,Gaize County,Tibet(XZJL-JS-2021-004);the Chinese Geological Survey(DD20190167);the Basal Research Fund of Chinese Academy of Geological Sciences(KK2017)。

摘　　要：The Tiegelongnan Cu(Au,Ag)deposit in central Tibet contains more than 10 Mt of copper ranking 29 th in the world.It is characterized by typical porphyry-epithermal alteration and mineralization.In order to improve the understanding of porphyry-epithermal copper deposit in Tibet,new zircon U-Pb age and sulfur isotope data along with published data in the Tiegelongnan are presented to investigate the formation and preservation mechanism.Ore-related intrusive rocks in the Tiegelongnan including Early Cretaceous(about 120 Ma)granodiorite porphyry and diorite porphyry are closely related to the northward subduction of Bangongco-Nujiang ocean.Sulfur mainly comes from deep magma,and ore-forming fluid is affected by both magmatic and meteoric water.The metallogenic setting of Tiegelongnan is consistent with those of Andean porphyry copper deposits in South America.The cover of the Meiriqiecuo Formation volcanic rocks,Lhasa-Qiangtang collision and India-Eurasian collision have significance in the preservation and uplift of the deposit.The formation,preservation and discovery of Tiegelongnan play an important role in exploration of ancient porphyry-epithermal deposits in Tibet.

关 键 词：Giant porphyry-epithermal copper deposit Mineralization and alteration Formation and preservation mechanism Tiegelongnan Duolong ore district Early Cretaceous Mineral exploration engineering Bangongco-Nujiang metallogenic belt TIBET 

分 类 号：P612[天文地球—矿床学]