白音诺尔-双尖子山-浩布高多金属矿集区基本地质特征  

Basic geological features of polymetallic deposit concentration areas in Baiyinnuoer-Shuangjianzishan-Haobugao

作　　者：杜青松[1,2] 鄂阿强 李志华 于永兵 DU Qingsong E Aqiang LI Zhihua YU Yongbing(School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China Inner Mongolia Institute of Experimental Mineral, Hohhot 010031, China)

机构地区：[1]中国地质大学地球科学与资源学院,北京100083 [2]内蒙古自治区矿产实验研究所,呼和浩特010031

出　　处：《有色金属科学与工程》2017年第2期63-69,共7页Nonferrous Metals Science and Engineering

基　　金：内蒙古自治区地质勘查基金项目资助([2015]矿产1-78)

摘　　要：大兴安岭地区是中国东部重要的成矿集中区之一,研究区为该区最具代表性的铅锌-铜-钼-锡-银-金集中区.结合研究区成矿的地质等主要特征,将主要多金属矿床区域成矿系统划分为2个成矿系统.即晚古生代-中生代斑岩-热液成矿系统和中生代构造-热液成矿系统.进而讨论了各成矿系列的主要矿产类型、地质特征、成因等.总结得出研究区成矿规律为:(1)从含矿地层上看,矿床含矿围岩主要为二叠系、侏罗系酸性火山岩及次火山岩;(2)从构造控矿上看,复背斜轴部的虚脱带、北东向与北西向断层交汇处是赋矿的有利场所;(3)从成矿时代上看,印支期和燕山期是重要成矿阶段;(4)从找矿类型看,主要产出与火山-侵入杂岩有关的矽卡岩型-斑岩型-浅成热液型多金属矿床,可能发现其他新的矿床类型.Chinese Da Hinggan Mountains is one of the important metallogenic clusters of eastern China. It is the most representative in the area of lead and zinc-copper-molybdenum-silver-gold clusters. According to the geological and other main characteristics of the mineralization in the study area, the main polymetallic ore deposit area was divided into two metallogenic systems： the late Paleozoic-Mesozoic porphyry-hydrothermal mineralization system and Mesozoic tectonic hydrothermal metallogenic system. Types of main minerals, geological characteristics and the ore-forming genesis were further discussed. Metallogenic regularities are obtained as follows： ①From the ore formation, surrounding rock of ore deposit are mainly Permian, Jurassic acidic volcanic rocks and volcanic rocks; ②From the tectonic control mine, the collapse anticline axis belt, north east and north west fault interchange is the good place of ore; ③From the metallogenic epoch, period of indosinian and yanshanian is an important metallogenic stages; ④From the prospecting type, the main output are volcano-intrusive complex related skarn type, porphyry type-epithermal type polymetallic deposit, other new type of ore deposits may also be found.

关 键 词：地质特征 成矿规律 成矿集中区 白音诺尔-双尖子山-浩布高 大兴安岭中南段 

分 类 号：P624[天文地球—地质矿产勘探] P618.4[天文地球—地质学]