甘肃省主要岩浆作用金矿床类型及其成矿作用  

The main types of magmatism gold deposits and their mineralization in Gansu Province

作　　者：王玉玺 蒲万峰 李通国[2] 杨涛[2] 王军 李康宁[1] 刘景显[1] 袁臻 WANG Yuxi;PU Wanfeng;LI Tongguo;YANG Tao;WANG Jun;LI Kangning;LIU Jingxian;YUAN Zhen(Gold Mine Resource Exploration and Utilization Technology Innovation Center of Gansu Province/The Third Institute of Geology and Minerals Exploration,Gansu Provincial Bureau of Geology and Minerals Exploration and Development,Lanzhou 730050,Gansu,China;Geological Survey of Gansu Province,Lanzhou 730000,Gansu,China;Lanzhou University of Arts and Science,Lanzhou 730000,Gansu,China)

机构地区：[1]甘肃省金矿资源勘查利用技术创新中心,甘肃省地矿局第三地质矿产勘查院,甘肃兰州730050 [2]甘肃省地质调查院,甘肃兰州730000 [3]兰州文理学院,甘肃兰州730000

出　　处：《地质通报》2024年第6期869-884,共16页Geological Bulletin of China

基　　金：甘肃省科技计划《甘肃省战略性矿产深部勘查技术与找矿预测研究》(编号:22YF7GA050);陇原青年英才培养计划(编号:202401);中央引导地方科技发展资金项目《基于宇宙射线缪子的三维矿藏勘探技术研发》(编号:YDZX20216200001297);陇原青年人才项目《地学大数据综合产品研发与应用--甘肃金川超大型铜镍矿深部及外围找矿研究》(编号:2020RCXM152);甘肃省自然资源厅科技项目《西秦岭中生代构造岩浆活动与金大规模成矿》(编号:202201);甘肃省地矿局创新资金项目《甘南地区金矿找矿靶区优选研究》(编号:2022CX10);中国地质调查局项目《甘肃省合作矿集区深部找矿预测》(编号:DD2019057010)

摘　　要：甘肃作为黄金资源大省之一,金矿类型多样,成矿作用复杂,其中岩浆作用成矿是金矿床的主要成矿机制之一,构造-岩浆-成矿的找矿研究思路更适用于岩浆作用金矿床。甘肃岩浆岩省可划分为10个构造岩浆岩带,分布范围广、规模大的主要有北山构造岩浆岩带、秦岭-大别构造岩浆岩带、塔里木构造岩浆岩带、祁连山构造岩浆岩带、阿尔金构造岩浆岩带、北秦岭构造岩浆岩带等,这些区域也是金矿床分布较集中区域,主要岩浆作用金矿床类型有岩浆型矿床、接触交代型矿床、斑岩型矿床、岩浆热液型矿床和火山岩型矿床五大类。结合甘肃省构造岩浆岩带划分及其主要特征和金矿床分布,重点分析研究了北山构造岩浆岩带和秦岭-大别构造岩浆岩带的岩浆作用金矿床与岩浆岩的时空分布特征、主要类型金矿床的成矿物质来源和物理化学条件,总结了控矿因素,提出有利于金矿找矿的主要岩浆岩类型、空间范围和技术方法。As one of the provinces with large gold resources,Gansu Province has various types of gold ore mineralization and complex metallage,among which magmatic metallogenic is one of the main metallogenic mechanisms of gold deposits,and the prospecting research idea of tectonic-magmatism-metallogenic is more suitable for magmatic gold deposits.The magmatic rock province of Gansu Province can be divided into 10 tectonic magmatic rock belts,which are mainly Beishan tectonic magmatic belt,Qinling-Dabie tectonic magmatic belt,Tarim tectonic magmatic belt,Qilian Mountain tectonic magmatic belt,Altyn tectonic magmatic belt,North Qinling tectonic magmatic belt,etc.,these areas are also relatively concentrated areas of gold deposits,and the main types of magmatic gold deposits are magmatic deposits,contact metasomatic deposits,porphyry deposits,magmatic hydrothermal deposits and volcanic rock deposits.Combined with the division of tectonic magmatic rock belts and their main characteristics and the distribution of gold deposits in Gansu Province,this paper focuses on the analysis and study of the temporal and spatial distribution characteristics of magmatic gold deposits and magmatic rocks,the mineral-forming sources and physicochemical conditions of the main types of gold deposits in the Beishan tectonic magmatic belt and the Qinling-Dabie tectonic magmatic belt,summarizes the ore control factors,and proposes the main magmatic rock types,spatial ranges and technical methods that are conducive to gold prospecting.

关 键 词：岩浆作用 成矿类型 成矿作用 矿产勘查工程 金矿 甘肃省 

分 类 号：P618.51[天文地球—矿床学]