新疆西天山金多金属矿航磁航放特征及找矿方向  

Geophysical characteristics of aerial magnetic and radioactive survey data and prospecting direction of gold-polymetallic deposit in West Tianshan,Xinjiang

作　　者：伍显红[1,2] 杜化宇 李晓禄 杨玉勤[1,2] WU Xianhong;DU Huayu;LI Xiaolu;YANG Yuqin(Airborne Survey and Remote Sensing Center of Nuclear Industry,Shijiazhuang 050002,Hebei,China;CNNC Key Laboratory for Geophysical Exploration TechnologyCenter of Uranium Resource,Shijiazhuang 050002,Hebei,China)

机构地区：[1]核工业航测遥感中心,河北石家庄050002 [2]中核集团铀资源地球物理勘查技术中心(重点实验室),河北石家庄050002

出　　处：《矿产与地质》2019年第4期703-710,共8页Mineral Resources and Geology

基　　金：中国地质大调查项目“秦岭及天山等重点成矿区带航空物探调查”项目的子项目“新疆博乐—新源地区航空物探（磁、放）调查”（编号：121201203000160006-27）资助

摘　　要：西天山位于天山成矿带——中亚成矿域的中心部位,多期次的岩浆、构造活动构成大型—超大型矿床形成的有利条件。依托2016年开展的1∶5万高精度航磁航放测量资料,在总结认识斑岩型、矽卡岩型铜铅锌金矿床、火山岩型金矿的地层、构造和岩浆岩等控矿要素的基础上,对控矿要素和航磁航放信息的响应关系进行了分析。依据剩余异常、异常均值、异常峰度和偏度等异常参量信息,以及水平梯度模、垂向一阶、二阶导数等反应地质体和构造边界信息,建立金及多金属矿产预测模型。预测结果表明:多金属成矿找矿最有利地段为喇嘛苏到汉吉尕山一带,沿博乐断裂带分布;火山岩型金矿的有利找矿地段分布在沿博罗克努断裂分布的火山岩区,预测结果为区内进一步找矿指明了方向。West Tianshan is located in the center of the Tianshan metallogenic belt-Central Asia metallogenic zone.Multi-stage magmatic and tectonic activities constitute the favorable conditions for forming large-and ultra-large deposits.On the basis of summarizing and understanding ore-controlling factors of porphyry-skarn type Cu-Pb-Zn-Au deposit and volcanic rock type Au deposit,analyzed the response relationship between ore-controlling factors and airborne magnetic and radioactive survey data.According to the residual anomalies,abnormal mean values,abnormal peaks abnormal information,and the horizontal gradient modes,vertical first order,second derivative,established two prediction models for Au-polymetallic deposit.The forecast results showed that the most favorable location for polymetallic mineralization was Lamasu to Hanjiga Mountain,distributed along the Bole fault zone.The favorable location of volcanic rock gold deposit was distributed in the volcanic rock area along the fault of Boluokenu.The results of the study made a direction for the further prospecting in the area.

关 键 词：金及多金属矿产 航磁航放信息 成矿预测 找矿方向 西天山 

分 类 号：P631.222[天文地球—地质矿产勘探] P618.51[天文地球—地质学]