摘要
苦水泉金矿位于柴北缘锡铁山-布果特山Pb-Zn-Au-Cu-Mn-煤成矿亚带,矿体受北西-南东向、北东-南西向和近南北向断裂构造控制,赋矿围岩为早志留世石英闪长岩.矿石金属矿物为磁铁矿-黄铁矿-黄铜矿-纤铁矿-针铁矿-孔雀石-蓝铜矿等中低温组合;近矿围岩蚀变以绢英岩化、硅化为特征,远矿围岩蚀变为绿泥石化、绿帘石化、绢云母化及碳酸盐化.金矿体主要受断裂构造和闪长岩脉控制.找矿标志为断裂构造、围岩蚀变和闪长岩脉.通过开展苦水泉金矿控矿因素和找矿标志研究,以期能为今后寻找同类型金矿提供参考.
Abstract
Kushuiquan gold mine is located in the PB-Zn-AU-Cu-Mn-coal metallogenic sub-belt of Xitie mountain-Buguote mountain in the northern margin of Qaidam basin.The ore body is controlled by northwest-southeast,northeast-southwest and nearly north-south trending fault structures.The host rock is early Silurian quartz diorite.The metal minerals of the ore are medium to low temperature combinations such as magnetite,pyrite,chalcopyrite,fibronite,goethite,malachite and azurite.The alteration of the surrounding rock in the near mine is characterized by sericitization and silicification,while that in the far mine is characterized by chloritization,epidotization,sericitiza-tion and carbonation.The gold mine is mainly controlled by faulted structures and diorite dikes.The prospecting indicators are fault structures,rock alteration and diorite veins.In summary,useful refe-rences for future research on the similar type of gold mine can be provided by conducting research on the controlling factors and prospecting indicators of Kushuiquan gold mine.
基金项目
青海省地质勘查基金(2018137043kc007)
NETL
NSTL
万方数据