邯郸娄里金矿铅同位素组成及其地质意义

发布时间：2018-07-01 17:33

本文选题：金矿床 + 碱性岩体　；参考：《西安科技大学学报》2017年01期

【摘要】：在邯郸永年洪山碱性杂岩体及其附近发现了数条金矿化带和多处铜矿化点。碱性杂岩体及其周边多金属及贵金属矿化的发现突破了以往邯郸-邢台地区只是矽卡岩式铁矿富集区的认识,找矿成果具有重要的理论和实践意义。以洪山碱性岩体北侧娄里金矿为例,测试分析了金矿石、斑岩体及不同围岩中Au,Cu等成矿元素含量,初步确定区内燕山期火成岩是形成金矿床和铜矿床重要的矿源层。在此基础上利用铅同位素示踪和分析了娄里金矿成矿物质来源,亦得出相同的结论。研究结果表明,形成碱性岩体的岩浆以地幔源为主,区内金、铜成矿元素均来源于幔源的碱性岩体。
[Abstract]:Several gold mineralization zones and several copper mineralization sites have been found in the Hongshan alkaline complex and its vicinity in Yongnian, Handan. The discovery of polymetallic and precious metals mineralization in alkaline complex and its surrounding area has broken through the previous understanding that Handan-Xingtai area is only skarn type iron ore rich area and the prospecting results have important theoretical and practical significance. Taking Louli gold deposit in the north side of Hongshan alkaline rock body as an example, the metallogenic elements such as Au-Cu in gold ore, porphyry rock and different surrounding rock are measured and analyzed. It is preliminarily determined that the Yanshanian igneous rock is an important source bed for the formation of gold deposit and copper deposit in this area. On the basis of this, the source of ore-forming material in Louli gold deposit is analyzed by using lead isotope tracer and the same conclusion is obtained. The results show that the magma forming alkaline rock body is mainly mantle source, and the elements of gold and copper mineralization in this area are derived from the alkaline rock body derived from mantle source.
【作者单位】：河北省地矿局第一地质大队;河北地质大学资源学院;
【基金】：河北省国土资源厅基金(2012997039;2014129497)
【分类号】：P618.51;P597

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