柴达木盆地周缘岩浆型铜镍矿找矿预测模型及找矿靶区优选  

Prospecting prediction model and prospecting target optimization of magmatic type copper-nickel deposit in the periphery margin of Qaidam Basin,Qinghai Province

作　　者：刘光莲 李战业 李珺 张爱奎 刘永乐 刘宇宏 白国龙 LIU Guanglian;LI Zhanye;LI Jun;ZHANG Aikui;LIU Yongle;LIU Yuhong;BAI Guolong(The 3rd Geological and Mineral Exploration Institute of Qinghai Province,Xining 810008,Qinghai,China)

机构地区：[1]青海省第三地质勘查院

出　　处：《矿产与地质》2019年第5期765-774,781,共11页Mineral Resources and Geology

基　　金：青海省科技厅自然科学基金“东昆仑西段金矿成矿规律及找矿突破”（2019-ZJ-7009）;青海省科技厅重大科技专项“柴达木盆地南北缘成矿系统与勘查开发示范”（2016-SF-A3）共同资助

摘　　要：夏日哈木超大型铜镍矿床的发现,使得柴达木盆地周缘造山带岩浆型铜镍矿被广泛关注和重视。然而继发现夏日哈木矿床后,该区找矿尚未取得进一步重要突破,目前有效的找矿预测模型尚未建立,找矿瓶颈突显。通过系统收集该区地物化资料,结合典型矿床成矿条件,采用“协优找矿预测”思维,提取找矿预测要素,建立柴达木盆地周缘岩浆型铜镍矿找矿预测模型,以找矿预测模型为基础,采用“相似类比”的方法,开展找矿远景区圈定和找矿靶区优选。在柴达木盆地周缘划分出12处岩浆型找矿远景区,圈定找矿靶区28处,推荐优选的重点找矿靶区6处。Magmatic copper-nickel deposits in the orogenic belt around the Qaidamu Basin have been widely concerned and paid attention to since Xiarihamu super-large copper-nickel deposit has been discovered.However,after the discovery of Xiarihamu deposit,no further important breakthrough has been made in the prospecting work in this area,and the effective prospecting prediction model has not yet been established.Based on the systematic collection of geological,geophysical,geochemical data and metallogenic condition analysis of typical deposits,essential factors of prospecting prediction are extracted by using the thinking of"Xieyou Prospecting Prediction",and the magmatic copper-nickel prospecting prediction model around the Qaidam Basin is established.Based on the prospecting prediction model and the method of"similar analogy",the ore prospecting perspective area is determined and the prospecting target area is optimized.There are twelve magmatic prospecting perspective areas in the periphery margin of Qaidam Basin,28 prospecting target areas are circled out,and six key prospecting target areas are recommended for optimal selection.

关 键 词：岩浆型铜镍矿 找矿预测模型 找矿靶区优选 柴达木盆地周缘 青海 

分 类 号：P618.41[天文地球—矿床学] P618.63[天文地球—地质学]