安徽省沿江地区矿床成矿特征及找矿方向  

Metallogenic Characteristics and Prospecting Direction of Ore Deposits in the Middle and Lower Reaches of Yangtze River in Anhui Province

作　　者：孙明明[1] 杜建国[1] 吴礼彬[1] 赵先超[1] 王利民[1] 高曙光[1] 陈静静 SUN Ming-Ming;DU Jian-Guo;WU Li-Bin;ZHAO Xian-Chao;WANG Li-Min;GAO Shu-Guang;CHEN Jing-Jing(Geological Survey of Anhui Province,Hefei 230001,Anhui,China)

机构地区：[1]安徽省地质调查院,合肥230001

出　　处：《华南地质》2020年第4期330-345,共16页South China Geology

基　　金：中国地质调查局中国矿产地质志项目“中国矿产地质志·安徽卷”(DD20190379-13)。

摘　　要：通过系统梳理安徽省长江两岸的矿产勘查资料和科研资料,总结了主要类型矿床的成矿地质背景、成矿特征及空间分布,探讨了成矿规律,提出了找矿方向,为矿产资源规划、地质勘查规划的编制提供了科学依据。研究区内矿产资源包括铁、铜、铅、锌、硫、石灰岩、砂岩、明矾石、石膏等60个矿种。可划分为矽卡岩型、斑岩型、岩浆热液型、陆相火山岩型、受变质型、化学沉积型、蒸发沉积型、生物化学沉积型、叠加(复合/改造)型等13种矿床类型。研究表明,安徽省沿江地区的找矿勘查工作应重点关注以下五个方面:①第二找矿空间的开拓和新类型矿床的找矿评价工作;②中生代火山岩盆地深部和外围寻找斑岩型-矽卡岩型铜金多金属矿床;③隆坳过渡区寻找岩浆热液型-斑岩型矿床;④新生代坳陷盆地内寻找常规油气和页岩气;⑤三稀矿产和铀矿的成矿潜力评价工作。By systematically combing the mineral exploration data and scientific research data on both sides of the Yangtze River in Anhui Province,this paper summarizes the metallogenic geological background,metallogenic characteristics and spatial distribution of the main types of deposits,discusses the metallogenic regularity,which provides a scientific basis for the compilation of mineral resources planning and geological exploration planning.There are more than 60 types of mineral resources in the study area including iron,copper,lead,zinc,sulfur,limestone,sandstone,alunite,gypsum.They can be subdivided into skarn type,porphyry type,magmatic hydrothermal type,continental volcanic type,metamorphic type,chemical sedimentary type,evaporative sedimentary type,biochemical sedimentary type and superimposed(composite/reformed)type.The following five aspects should be paid attention to in the prospecting and exploration along the Yangtze River in Anhui Province:①the exploration of the second prospecting space,the prospecting and evaluation of new types of deposits;②the prospecting of porphyry-skarn type copper gold polymetallic deposits in the deep and peripheral Mesozoic volcanic basins;③the prospecting of magmatic hydrothermal type and porphyry type deposits in the transition area between uplift and depression;④the prospecting of conventional oil and gas as well as shale gas in Cenozoic depression basins;⑤metallogenic potential evaluation of"three rare"minerals and uranium deposits.

关 键 词：沿江成矿亚带 矿床类型 成矿特征 找矿方向 安徽省 

分 类 号：P612[天文地球—矿床学]