克停哈尔矿区位于青海省祁漫塔格成矿带东端,矿区出露地层有古元古界金水口岩群和寒武—奥陶系滩间山群,岩性以片麻岩、大理岩为主.侵入岩以印支期花岗闪长岩为主,是斑岩型钼矿含矿母岩;北西向的压扭性断裂为矿区主体构造,后期北东向构造为成矿提供了良好通道,是热液脉型多金属矿的主要产出部位,矿区花岗闪长岩体中发育隐爆角砾岩,2016年在隐爆角砾岩中新发现了铅锌矿,是祁漫塔格成矿带发现的第二例隐爆角砾岩型多金属矿,通过对矿区隐爆角砾岩筒初步研究分析认为,其剥蚀程度浅,保存较完整,深部具有良好的找矿前景.总结该区隐爆角砾岩成矿特征,以期为祁漫塔格成矿带同类型矿床勘查提供参考.%The Ketinghaer orefield is located in the eastern end of Qimantag metallogenic belt in Qinghai.The mergence stratum in this orefield is Paleoproterozoic Jinshuikou Gr.and Cambrian-Ordovician Tanjianshan Gr.,in where the rocks are dominated by gneiss and marble.The intrusive rock mainly is the granodiorite of Indosinian,which is the ore-bearing rocks of Porphyry Mo deposit.The main structure is the NW compress-torsional fault,and the later NE structure in the granodiorite provide a good channels for the ore formation and provide the main storage for the Hydrothermal vein polymetallic ore.The crypto-explosive breccia is developed in the granodiorite of the property.In 2016,the Pb-Zn ore was found in the crypto-explosive breccia.The discovery makes it as the second crypto-explosive breccia type polymetallic deposit found in the Qimantag metallogenic belt.The premilinary study on the crypto-explosire breccia pipe suggests that its denuded level is not deep and the rock is relatively complete,so the deeper part shoud have good ore -prospecting potential.This paper aims to ummarize the metallogenic characteristics of the crypto-explosive breccia in this area in order to provide a reference for prospecting and explorating the same type deposit in Qimantag metallogeuic belt.
展开▼
