| 罗晓丽,苏旭亮,张大明,刘国燕,林贵,赵永亮,张学明.祁漫塔格克停哈尔隐爆角砾岩成矿地质特征及找矿意义[J].矿产勘查,2018,9(2):238-244 |
| 祁漫塔格克停哈尔隐爆角砾岩成矿地质特征及找矿意义 |
| Metallogenic characteristics and exploration significance of the crypto-explosive breccia in Ketinghaer region, Qimantag |
| 投稿时间：2017-04-25 |
| DOI： |
| 中文关键词: 克停哈尔 隐爆角砾岩 找矿意义 地质特征 青海 |
| 英文关键词: Ketinghaer,crypto-explosive breccia,exploration significance,geological characteristics,Qinghai |
| 基金项目:中国地质调查局项目(编号:1212011140079)资助。 |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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-explosive 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 metallogenic belt. |
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