Geology and mineralization of the Duobaoshan supergiant porphyry Cu-Au-Mo-Ag deposit(2.36 Mt)in Heilongjiang Province,China:A review  

作　　者：Sen Zhang Nan Ju Guo-bin Zhang Yuan-dong Zhao Yun-sheng Ren Bao-shan Liu Hui Wang Rong-rong Guo Qun Yang Zhen-ming Sun Feng-ming Xu Ke-yong Wang Yu-jie Hao 

机构地区：[1]Cores and Samples Centre of Natural Resources,China Geological Survey,Ministry of Natural Resources,Langfang 065200,China [2]Shenyang Center,China Geological Survey,Ministry of Natural Resources(Northeast Geological S&T Innovation Center),Shenyang 110034,China [3]Mining College,Liaoning Technical University,Fuxin 123000,China [4]Mudanjiang Natural Resources Survey Center,China Geological Survey,Ministry of Natural Resources,Mudanjiang 157021,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1期100-136,共37页中国地质（英文）

基　　金：funded by the National Scientific and Technological Basic Resources Investigation Program(2022FY101800);a project of the National Natural Science Foundation of China(42102087);a project of the China Postdoctoral Science Foundation(2022M712966);a major project of the Ministry of Science and Technology of the People’s Republic of China(2021QZKK0304)。

摘　　要：The reserves of the Duobaoshan porphyry Cu-Au-Mo-Ag deposit(also referred to as the Duobaoshan porphyry Cu deposit)ranks first among the copper deposits in China and 33rd among the porphyry copper deposits in the world.It has proven resources of copper(Cu),molybdenum(Mo),gold(Au),and silver(Ag)of 2.28×10^(6)t,80×10^(3)t,73 t,and 1046 t,respectively.The major characteristics of the Duobaoshan porphyry Cu deposit are as follows.It is located in a zone sandwiched by the Siberian,North China,and paleo-Pacific plates in an island arc tectonic setting and was formed by the Paleozoic mineralization and the Mesozoic mineralization induced by superposition and transformation.The metallogenic porphyries are the Middle Hercynian granodiorite porphyries.The alterations of surrounding rocks are distributed in a ring form.With silicified porphyries at the center,the alteration zones of K-feldspar,biotite,sericite,and propylite occur from inside to outside.This deposit is composed of 215 ore bodies(including 14 major ore bodies)in four mineralized zones.Ore body No.X in the No.3 mineralized zone has the largest resource reserves,accounting for more than 78%of the total reserves of the deposit.Major ore components include Cu,Mo,Au,Ag,Se,and Ga,which have an average content of 0.46%,0.015%,0.16 g/t,1.22 g/t,0.0003%,and 0.001%-0.003%,respectively.The ore minerals of this deposit primarily include pyrite,chalcopyrite,bornite,and molybdenite,followed by magnetite,hematite,rutile,gelenite,and sphalerite.The ore-forming fluids of this deposit were magmatic water in the early metallogenic stage and then the mixture of meteoric water and magmatic water at the late metallogenic stage.The ore-forming fluids experienced three stages.The ore-forming fluids of stageⅠhad a hydrochemical type of H_(2)O-CO_(2)-Na Cl,an ore-forming temperature of 375-650℃,and ore-forming pressure of 110-160 MPa.The ore-forming fluids of stageⅡhad a hydrochemical type of H_(2)O-CO_(2)-Na Cl,an ore-forming temperature of 310-350℃,and ore-forming pressure

关 键 词：Cu-Au-Mo-Ag deposit PORPHYRY MINERALIZATION Mineralization model Mineral exploration engineering Prospecting modle Duobaoshan Heilongjiang China 

分 类 号：P612[天文地球—矿床学]