基于重磁资料探析青海省石头坑德铜镍多金属矿成矿特征  

GRAVITY AND MAGNETIC STUDY ON METALLOGENIC CHARACTERISTICS OF COPPER-NICKEL POLYMETALLIC MINERALIZATION IN SHITOUKENGDE AREA OF QINGHAI PROVINCE

作　　者：欧栋 路利春 马东 王鹏 Ou Dong;Lu Li-chun;Ma Dong;Wang Peng(Shaanxi Geophysical Prospecting Brigade No.2.of Shaanxi Group of Geology and Mineral Devopment,Xi′an 710016)

机构地区：[1]陕西地矿第二综合物探大队有限公司

出　　处：《陕西地质》2019年第2期69-77,共9页Geology of Shaanxi

基　　金：中国地质调查局青海祁漫塔格成矿带金属矿地质矿产调查(项目编码:12120114090201)资助

摘　　要：通过对重磁场特征及已有地质资料综合分析,推断出石头肯德地区8个基性-超基性杂岩体,重新划分了区内的断裂构造、岩体分布。重力高、磁力高为石头坑德铜镍多金属矿识别赋存铜镍矿体的基性-超基性杂岩体的重要标志,赋存铜镍矿体的基性-超基性杂岩体分布明显受断裂控制。Based on comprehensive analysis of the characteristics of gravity and magnetic field and the existing geological data, eight basic and ultra-basic complexes in Shitoukende area are inferred, and fault structures and rock mass distribution in this area are repartitioned. The important symbols to identify the basic-ultrabasic complex containing copper-nickel ore bodies are high in gravity and high magnetism in Shitoukende area, and the distribution of the basic-ultrabasic complex that contains copper-nickel ore bodies are controlled by fractures.

关 键 词：重磁场特征 物性参数 断裂构造 基性-超基性杂岩体 重磁反演 

分 类 号：P618.2[天文地球—矿床学] P631[天文地球—地质学]