武夷山地区基底变质岩系与区域Cu-Au多金属矿床的关系初探  

Relationship between metamorphic basement rocks and Cu-Au polymetallic deposit in Wuyishan area

作　　者：王磊 李龙明[1] 班宜忠[2] 卢可佳 葛延鹏 江涧 WANG Lei;LI Longming;BAN Yizhong;LU Kejia;GE Yanpeng;JIANG Jian(School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China;Nanjing Geological Survey Center, China Geological Survey, Nanjing 210016, China)

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009 [2]中国地质调查局南京地质调查中心,江苏南京210016

出　　处：《合肥工业大学学报（自然科学版）》2020年第5期688-695,共8页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(41872237,41573023);国土资源部地质调查资助项目(DD20160037)。

摘　　要：华夏地块武夷山地区的前寒武纪变质基底主要出露于浙江陈蔡、龙泉及福建马面山地区。文章将变质基底岩石中成矿元素的含量与中国东部地壳平均丰度及区域典型矿床进行对比研究,发现基底岩石在成岩过程或变质过程中已经发生成矿元素的初步富集,且富集的成矿元素种类与其中赋存的Cu-Au多金属矿床具有相关性。另外,不同地区变质基底含矿岩性不同,陈蔡地区以斜长角闪岩为主,而龙泉地区含矿的岩性为片岩类,马面山地区矿床主要赋存于绿片岩中。The Precambrian metamorphic basement in the Wuyishan area of the Cathaysia Block was predominately exposed in Chencai and Longquan area in Zhejiang Province,and Mamianshan area in Fujian Province.In this study,the concentration of metallic elements in the metamorphic basement rocks is compared with the average abundance of the crust in east China and typical Cu-Au deposits in Wuyishan area.It is found that the metallic elements had been initially enriched during the diagenesis process or metamorphic process,and these enriched elements are relevant to regional Cu-Au deposits.Moreover,ore-bearing lithology varies in different basements,which are mainly amphibolites,schist and green schist in the Chencai,Longquan and Mamianshan area,respectively.

关 键 词：华夏地块 陈蔡群 龙泉群 马面山群 变质基底 Cu-Au多金属矿床 

分 类 号：P612[天文地球—矿床学]