Geology and mineralization of the Daheishan supergiant porphyry molybdenum deposit(1.65 Bt),Jilin,China:A review  

作　　者：Nan Ju Di Zhang Guo-bin Zhang Sen Zhang Chuan-tao Ren Yun-sheng Ren Hui Wang Yue Wu Xin Liu Lu Shi Rong-rong Guo Qun Yang Zhen-ming Sun Yu-jie Hao 

机构地区：[1]Shenyang Center,China Geological Survey,Ministry of Natural Resources(Northeast Geological S&T Innovation Center),Shenyang 110034,China [2]Mining College,Liaoning Technical University,Fuxin 123000,China [3]Cores and Samples Centre of Natural Resources,China Geological Survey,Ministry of Natural Resources,Langfang 065200,China [4]Mudanjiang Natural Resources Survey Center,China Geological Survey,Ministry of Natural Resource,Mudanjiang 157000,China [5]Institute of Disaster Prevention,Langfang 065200,China [6]College of Earth Sciences,Jilin University,Changchun 130000,China [7]School of Earth Science and Resources,Chang'an University,Xi'an 710000,China [8]School of Resources and Civil Engineering,Northeastern University,Shenyang 110031,China [9]School of Prospecting&Surveying Engineering,Changchun Institute of Technology,Changchun 130000,China

出　　处：《China Geology》2023年第3期494-530,共37页中国地质（英文）

基　　金：This study was jointly funded by a project of the National Natural Science Foundation of China(42102087);a project of the China Postdoctoral Science Foundation(2022M712966);a key special project of the Ministry of Science and Technology of China(2021QZKK0304).

摘　　要：The Daheishan supergiant porphyry molybdenum deposit(also referred to as the Daheishan deposit)is the second largest molybdenum deposit in Asia and ranks fifth among the top seven molybdenum deposits globally with total molybdenum reserves of 1.65 billion tons,an average molybdenum ore grade of 0.081%,and molybdenum resources of 1.09 million tons.The main ore body is housed in the granodiorite porphyry plutons and their surrounding inequigranular granodiorite plutons,with high-grade ores largely located in the ore-bearing granodiorite porphyries in the middle-upper part of the porphyry plutons.Specifically,it appears as an ore pipe with a large upper part and a small lower part,measuring about 1700 m in length and width,extending for about 500 m vertically,and covering an area of 2.3 km^(2).Mineralogically,the main ore body consists of molybdenite,chalcopyrite,and sphalerite horizontally from its center outward and exhibits molybdenite,azurite,and pyrite vertically from top to bottom.The primary ore minerals include pyrite and molybdenite,and the secondary ore minerals include sphalerite,chalcopyrite,tetrahedrite,and scheelite,with average grades of molybdenum,copper,sulfur,gallium,and rhenium being 0.081%,0.033%,1.67%,0.001%,and 0.0012%,respectively.The ore-forming fluids of the Daheishan deposit originated as the CO_(2)-H_(2)O-NaCl multiphase magmatic fluid system,rich in CO_(2)and bearing minor amounts of CH4,N2,and H2S,and later mixed with meteoric precipitation.In various mineralization stages,the ore-forming fluids had homogenization temperatures of>420℃‒400℃,360℃‒350℃,340℃‒230℃,220℃‒210℃,and 180℃‒160℃and salinities of>41.05%‒9.8%NaCleqv,38.16%‒4.48%NaCleqv,35.78%‒4.49%NaCleqv,7.43%NaCleqv,and 7.8%‒9.5%NaCleqv,respectively.The mineralization of the Daheishan deposit occurred at 186‒167 Ma.The granites closely related to the mineralization include granodiorites(granodiorite porphyries)and monzogranites(monzogranite porphyries),which were mineralized after magmatic evol

关 键 词：Molybdenum deposit Porphyry type Granodiorite porphyry Crust-mantle mixing METALLIZATION U-Pb age O-S-Pb isotope Re isotope Inclusion type Ore-bearing fluid Metallogenic model Prospecting model Mineral exploration engineering 

分 类 号：P618.65[天文地球—矿床学]