| 叶小春,吴春章,聂国永,周科宇,许骏,熊宇轩,黄玺,黄玉蓬.青海东昆仑克特贡玛地区银多金属矿地质特征及找矿前景[J].贵州地质,2019,36(4):324-334 |
| 青海东昆仑克特贡玛地区银多金属矿地质特征及找矿前景 |
| Geological Characteristics and Prospecting Potential of the Ketegongma Silver-Polymetallic Deposit in Eastern Kunlun, Qinghai |
| 投稿时间：2019-04-23 |
| DOI： |
| 中文关键词: 银多金属矿 东昆仑 找矿前景 |
| 英文关键词:Silver-polymetallic deposits East Kunlun Potential Prospecting |
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| 中文摘要: |
| 克特贡玛地区银多金属矿位于昆中断裂北侧，夹于那更康切尔与哈日扎两个大型银矿之间，具有优越的成矿地质背景和有利的成矿地质条件。区内已发现15条银铅锌矿体，具有较好的找矿前景。笔者通过对该地区地质背景、物化探特征及矿体特征进行综合分析研究，初步探讨了矿床成因，对研究区的找矿前景及找矿方向进行了分析。含矿带展布总体受NW向断层控制，矿体定位直接受控于北西构造与环形构造(火山口、环状和放射状岩脉)叠合部位、岩体接触带，矿体的形成是构造—岩浆活动的双重作用的结果。目前，初步研究认为区内银多金属矿具有矽卡岩型、浅层低温热液型两种矿床类型。最后，对该区中部及南东部等有利成矿部位进行了探讨，对深部成矿远景进行了初步展望。 |
| 英文摘要: |
| Exploration, Chengdu 610203，Sichuan, China)The silver-polymetallic deposits in the Ketegongma area are located at the north side of the Kunzhong fault, sandwiched between the two large silver mines of Nagekangqieer and Harizha with superior ore-forming geological background and favorable metallogenic geological conditions. Fifteen silver-lead-zinc ore bodies have been found in deposit, which demonstrate a good prospect. Based on comprehensive analysis of research on geological background, geochemical characteristics and orebody characteristics in those deposits, the authors preliminarily explore the genesis of the deposit, analyze the prospecting prospects and direction. The ore-bearing belts are generally controlled by NW faults, which are also controlled by the ring structures (craters, rings and radial veins) where the ring structures suerpose on the NW faults. And the ore bodies also can be found in the contact zones of intermediate-felsic rocks and old stratas. The formation of the ore body is considered as the dual results of tectonic-magmatic activities. At present, our researches implicate that those silver-polymetallic ores belong to two types of deposits as Skarn and Epithermal.Finally, in this paper, the favorable mineralization sites are discussed in the central and southeastern parts of this area, which exhibit a preliminary outlook for the deep metallogenic prospects. |
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