鄂东南金牛盆地与中国东部中生代火山岩盆地成矿地质条件对比初探  

Preliminary discussion on the Mineralization Geological Conditions of Jinniu Volcanic Rock Basin in Southeast Hubei and Mesozoic Volcanic Rock Basins in Eastern China

作　　者：闫芳 王宇 朱柳琴 刘敏 魏克涛 YAN Fang;WANG Yu;ZHU Liu-qin;LIU Min;WEI Ke-tao(First Geological Brigade of Hubei Geological Bureau,Daye,Hubei 435100)

机构地区：[1]湖北省地质局第一地质大队,湖北大冶435100

出　　处：《世界有色金属》2022年第18期141-143,共3页World Nonferrous Metals

基　　金：湖北省地质局重点科技项目《鄂东南矿集区战略性矿产深部找矿理论与技术方法应用创新》(编号:KJ2022-15);湖北省地质局第一地质大队队级科技项目《金牛火山岩盆地成矿地质条件研究》(编号:YDKJ2020-10);湖北省地质局第一地质大队院士专家工作站、湖北省地质局找矿突破创新中心联合资助

摘　　要：通过开展中国东部中生代火山岩盆地与鄂东南地区金牛火山岩盆地的区域构造背景、成矿地质条件及典型矿床特征的对比研究,认为金牛火山岩盆地大地构造背景处于区域拉伸环境中的局部挤压地区,既发育中基性火山岩/次火山岩及与之相关的玢岩型铁矿,也发育有中酸性火山/次火山岩及与之相关的火山-次火山热液型金铜铅锌银多金属矿床,区内寻找与火山-次火山岩相关的玢岩型铁矿、低温热液型多金属矿均具有较大潜力。在今后工作中,应在关注火山岩/次火山岩含矿性与成矿专属性以明确找矿方向的基础上,尝试开展音频大地电磁法、微动勘探法、广域电磁法等大测深物探工作,以达到提取次火山岩、基底断裂、火山机构等控矿地质体和构造信息的目的,为成矿预测提供依据。By comparing the regional tectonic background,mineralization geological conditions and typical deposit characteristics of Mesozoic volcanic rock basins in eastern Chinawith Jinniu volcanic rock basinin southeast Hubei,it is considered that the tectonic background of Jinniu volcanic rock basin is in a local extruded area of a regional stretching environment.Both mafic-intermediate volcanic rocks/subvolcanic rocks and related porphyrite iron ore,intermediate-acid volcanic?rocks/subvolcanic rocks and related volcanic-subvolcanic hydrothermal gold,copper,lead,zinc,silver polymetallic deposits are developed.Thus,the search for porphyrite iron ore and low-temperature hydrothermal-type polymetallic mine related to volcanic-subvolcanic rocks all has great potential in Jinniu volcanic rock basin.In the future work,the researchers should focus on the ore-bearing potential and mineralizing specialization of volcanic rock/subvolcanic rock and minlogenic specificity to define the prospecting direction.On this basis,try to carry out large detection depth geophysical prospecting work such as audio magnetotelluric method,mircrotremor survey method and wide field electromagnetic method,to achieve the purpose of extracting ore-controlled geological body and structural information such as subvolcanic rock,basement fracture and volcanic edifice,to provide evidence to metallogenic prediction.

关 键 词：金牛盆地 成矿地质条件 对比研究 找矿方向 

分 类 号：P612[天文地球—矿床学]