| 王卡,何友宇,王宾海.衡阳盆地及周缘铜多金属矿成矿规律分析[J].南华大学学报(自然科学版),2023,(5):38~44.[WANG Ka,HE Youyu,WANG Binhai.Analysis on Metallogenic Regularity of Copper-Polymetallic Deposits in Hengyang Basin and its Periphery[J].Journal of University of South China(Science and Technology),2023,(5):38~44.] |
| 衡阳盆地及周缘铜多金属矿成矿规律分析 |
| Analysis on Metallogenic Regularity of Copper-Polymetallic Deposits in Hengyang Basin and its Periphery |
| 投稿时间：2023-04-03 |
| DOI：10.19431/j.cnki. 1673-0062.2023.05.006 |
| 中文关键词: 铜多金属矿 成矿规律 衡阳盆地 |
| 英文关键词:copper polymetallic deposits metallogenic regularit Hengyang basin |
| 基金项目:湖南省核工业地质局科研资助项目(KY2014-306-01;KY2015-306-01) |
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| 中文摘要: |
| 衡阳盆地大地构造处于华南板块与扬子板块相结合的钦-杭成矿带西段,属钦杭成矿带中部与南岭东西向构造-岩浆-成矿带中段北缘交会区。铜多金属矿床均分布在中新生代断陷盆地中及周边,其受区域上构造演化特定时期断陷盆地控制下的统一构造岩浆(火山)热液活动的制约,与深大断裂及其交会区强烈的构造-岩浆(火山)热液活动密切相关,主成矿时代为中-新生代。成矿规律分析表明,对于区内与构造-岩浆侵入作用有关的铜多金属成矿类型,自岩体向外呈现为:岩体内带型钨-锡-铜-铀-钠长石矿床→岩体接触外带型铀-铜-铅锌-钨-铁矿床→矽卡岩型铁-铜-铅锌(金)矿床→充填交代型铜-铅锌-重晶石-萤石矿床的水平和垂向分带特征。 |
| 英文摘要: |
| The geotectonics of the Hengyang basin is located in the west segment of the Qinzhou-Hangzhou metallogenic belt where between the south China plate and the Yangtze plate,it belongs to the intersection area between the middle part of the Qinzhou-Hangzhou metallogenic belt and the north edge of the east-west tectonic-magmatic-metallogenic belt in middle Nanling mountains.The paper studied on geological features of Hengyang basin,tectonic evolution and magmatic hydrothermal activity,metallogenic age,spatial distribution characteristics of copper-polymetallic deposits,and the results show the mineral resources in the basin and its periphery are characterized by long period,multiple mineral species and strong enrichment.Different tectonic units and evolutionary stages control different ore-bearing formations,temporal and spatial distribution rules of mineralization and paragenetic association of deposits in the basin.By examining the relationship between plate tectonic evolution stage and copper-polymetallic mineralization distribution in space-time as well as their sepuence,it summarizes a new metallogenic regularity of copper-polymetallic mineralization in the area.The metallogenic regularity shows that the copper-polymetallic metallogenic types related to tectono-magmatic intrusions in the area has the characteristics of horizontal and vertical zoning from the rock mass to outwards such as intralesional type W-Sn-Cu-U-albite deposit→rock mass exocontact type U-Cu-Pb-Zn-W-Fe deposit→skarn type Fe-Cu-Pb-Zn (Au) deposit→filling metasomatic type Cu-Pb-Zn-barite-fluorite deposit. |
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