青海省都兰县德里特地区多金属矿地质特征及找矿规律研究  

Study on geological characteristics and prospecting rules of polymetallic deposit in Delite Area,Dulan County,Qinghai Province

作　　者：尚生茂 汤声旺 李世恩 何俊江 张志强 Shang Shengmao;Tang Shengwang;Li Shi′en;He Junjiang;Zhang Zhiqiang(Qinghai Third Geological Exploration Institute of Nonferrous Metals,Xining 810000,China)

机构地区：[1]青海省有色第三地质勘查院,青海西宁810000

出　　处：《能源与环保》2022年第11期107-113,119,共8页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：青海省地质勘查基金项目(QH2021-DJ56)。

摘　　要：研究区大地构造位置地处东昆仑南造山带东,是金、银、铜、钴、镍、铅、锌等成矿的有利地段。矿区内圈定1∶2.5万水系沉积物测量异常18处,异常元素以Ag、Pb、Co、Ni、Cr为主,各元素间套合性较好,异常区内发现了2条含矿构造蚀变带及4处矿化点,并圈出多条矿体。已发现矿化线索均受北西西向压扭性断裂控制,其中Ⅰ、Ⅳ号含矿蚀变带内的铅、萤石矿体展布受构造控制,其形状规模完全取决于裂隙的空间和形状,Ⅱ、Ⅲ、Ⅳ、Ⅴ矿化点均位于北西西向压扭性断裂主断裂及其近侧次级裂隙中,矿体构造裂隙与矿化关系密切。根据矿床地质特征,总结找矿规律,研究区内有望取得热液型银铅锌萤石矿及金铜钴的找矿突破。The tectonic location of the study area is located in the east of the East Kunlun southern orogenic belt,which is a favorable area for the mineralization of gold,silver,copper,cobalt,nickel,lead and zinc.In the mining area,18 anomalies of 1∶25000 stream sediment survey are delineated,and the abnormal elements are mainly Ag,Pb,Co,Ni and Cr,with good interfitting.Two ore-bearing structural alteration zones and four mineralization points are found in the anomaly area,and several ore bodies are delineated.Mineralization have been found clues are controlled by the north west pressure shear fracture,among which containⅠ,Ⅳmineral alteration zone in the lead,fluorite ore body distribution is controlled by structure,its shape depends entirely on fracture scale,space and shapeⅡ,Ⅲ,Ⅳ,Ⅴmineralized points are located in the north west shear fracture pressure main fault and its secondary fractures near side,orebody tectonic fissures and closely related to mineralization.According to the geological characteristics of the deposit,it is expected to achieve a breakthrough of hydrothermal Ag-Pb-Zn-fluorite ore and au-Cu-Co prospecting in the research area.

关 键 词：东昆仑造山带 德里特地区 矿体地质特征 找矿规律 

分 类 号：P618.2[天文地球—矿床学]