鄂东南地区赋存于沉积岩中金矿床的勘查进展和研究现状  

Progresses of Geological Survey and Research of Sediment-hosted Gold Deposits in Southeastern Hubei Province

作　　者：余国飞 魏克涛 张晓军[2] 王成 沈军 尚世超 刘孟合 张柳 YU Guofei;WEI Ketao;ZHANG Xiaojun;WANG Cheng;SHEN Jun;SHANG Shichao;LIU Menghe;ZHANG Liu(The First Geological Brigade of Hubei Geological Bureau,Daye 435100,Hubei,China;School of Earth Resources,China University of Geosciences(Wuhan),Wuhan 430074,Hubei,China;Xinjiang Geological Survey Academy,Urumqi 830000,Xinjiang,China)

机构地区：[1]湖北省地质局第一地质大队,湖北大冶435100 [2]中国地质大学(武汉)资源学院,湖北武汉430074 [3]新疆地质调查院,新疆乌鲁木齐830000

出　　处：《大地构造与成矿学》2022年第1期77-85,共9页Geotectonica et Metallogenia

基　　金：湖北省地质局科技项目(KJ2019-5、KJ2020-48);湖北省地质局矿产地质项目(P62200800038)联合资助。

摘　　要：赋存于沉积岩中的金矿床包括了绝大部分卡林型、少数造山型和部分斑岩成矿系统外围浸染型金矿床。鄂东南地区是长江中下游七个重要矿集区之一,发育一系列与岩浆岩有关的矽卡岩型、斑岩型矿床,以往的勘探和研究也主要围绕着岩体及接触带附近的斑岩、矽卡岩型矿床展开。对于岩浆岩外围赋存于沉积岩中的金矿床虽然也有发现,但并未引起足够重视。近年来,以张海和丰山地区为代表的赋存于沉积岩中的金矿床取得了重要的勘查进展,查明或预测金资源储量达到中型或大型规模,使得部分学者对鄂东南地区这类矿床的找矿前景和矿床成因开始重新审视。本文系统梳理了鄂东南地区赋存于沉积岩中金矿床的勘查进展和研究现状,对不同分布区典型金矿床的矿化地质特征进行了总结和对比,提出了今后工作中亟需解决的关键地质问题,为该区下一步的勘探和研究带来新的启示。The sediment-hosted gold deposit includes most of the Carlin-type gold deposits,some epizonal orogenic gold deposits,and distal gold deposits associated with porphyry systems.The southeast Hubei province is one of the seven important ore-concentrated areas in the Middle-Lower Yangtze River metallogenic belt where a series of Fe-Cu-Au skarn and Cu-Mo porphyry deposits have been reported.Previous exploration and research work are mainly aimed at the porphyry-and skarn-type deposits inside the exposed plutons and their contact zones.Even though a few sediment-hosted gold concentrations have also been discovered,they are largely ignored.Recent exploration in the Zhanghai and Fengshan areas of the southeast Hubei province revealed that some sediment-host gold deposits have proven or predicted reserves of medium to large scales.The potential reserves and mineral prospecting in the area have attracted the attention of many economic geologists,mining companies,and government agencies as well.This paper presents a comprehensive review of the progresses of geological survey and mineral exploration of sediment-hosted gold deposits in the southeast Hubei province,provides a summary of geological and mineralization features of representative gold deposits,and then proposes some critical issues for the future prospecting.

关 键 词：沉积岩容矿 卡林型 造山型 斑岩成矿系统 鄂东南地区 

分 类 号：P611[天文地球—矿床学] P612[天文地球—地质学]