四川甲基卡锂辉石矿床西缘地面高精度磁测异常特征及找矿预测  

Anomalies characteristics of ground high-precision magnetic survey and the prospecting prediction in Jiajika style spodumene deposits,Sichuan

作　　者：刘应冬 周玉[1] 郭润平 周雄[1] 张贻[1] LIU Ying-dong;ZHOU Yu;GUO Run-ping;ZHOU Xiong;ZHANG Yi(Institute of Multipurpose Utilization of Mineral Resources,CAGS,Chengdu 610041;The Second Comprehensive Geophysical Survey,Shaanxi Bureau of Geology and Mineral Exploration and Development,Xi＇an 710016)

机构地区：[1]中国地质科学院矿产综合利用研究所,成都610041 [2]陕西地矿综合第二物探大队,西安710016

出　　处：《矿产勘查》2018年第3期428-437,共10页Mineral Exploration

基　　金：国家公益性基础调查二级项目(编号:DD20160074)资助

摘　　要：为厘清甲基卡锂辉石矿床西缘四川康定亚中地区穹隆构造—花岗岩浆—矿化伟晶岩三者间关系,开展了地面高精度磁测工作。通过分析磁异常特征,圈定磁测异常31处,断裂构造3个,划分出1处矿产勘查的有利地段,异常编号为M17、M26、M27、M28、M29、M30、M31,该异常带与瓦多—长征热液构造穹隆位置吻合,这些异常区为寻找隐伏岩体,发现甲基卡式锂辉石矿床指明了方向。To clarify the relationship between dome structure,granite and mineralized pegmatite in the Kangding-Yazhong area,ground high-precision magnetic survey was carried out. We delineated thirty-one magnetic anomalies,three fault structures,and divided a favorable area for prospecting by analyzing the characteristics of magnetic anomalies. The magnetic anomaly number is M17,M26,M27,M28,M29,M30,and M31. These magnetic anomalies zone are consistent with the Waduo-Changzheng hydrothermal dome structure. These magnetic anomalies provided significant clue for looking for hidden rocks and finding the Jiajika style spodumene deposits indicating the direction.

关 键 词：磁异常 找矿预测 四川 甲基卡锂辉石矿床 

分 类 号：P618.71[天文地球—矿床学] P631[天文地球—地质学]