黑河市522高地金矿床地质特征及找矿标志  

Geological characteristics and prospecting marks in 522 Highland Gold Deposit in Heihe City

作　　者：张建良[1] 董超然 韩世炯[3] 郝明 Zhang Jianliang;Dong Chaoran;Han Shijiong;Hao Ming(Geology Archives of Heilongjiang Province;Fifth Geological Exploration Institute of Heilongjiang Province;College of Earth Sciences,Jilin University;Liaoning Metallurgical Geological Exploration Research Institute Co.,Ltd.)

机构地区：[1]黑龙江省地质资料档案馆,哈尔滨市150090 [2]黑龙江省第五地质勘查院 [3]吉林大学地球科学学院 [4]辽宁省冶金地质勘查研究院有限责任公司

出　　处：《黄金》2021年第5期18-23,共6页Gold

基　　金：国家青年科学基金(4160020164)。

摘　　要：522高地金矿床位于兴蒙造山带东段的多宝山—争光—八车力北西向构造成矿带,该成矿带内已发现多处矿床(点),具有较好的找矿潜力。该矿床为近年来新发现的金矿床,矿床类型为构造蚀变岩型,成矿时代为燕山期。矿区内已圈定金矿体2条、金矿化体8条,锌矿体1条、锌矿化体4条。矿体呈脉状赋存于蚀变花岗闪长岩中,北东向与北西向断裂交汇部位控制矿体的产出,硅化、钾化、绢云母化、绿帘石化与金矿化密切相关;1∶2万土壤地球化学测量结果显示,由Ag、Cu、Pb、Zn、Sb等元素组成的组合异常为良好的地球化学找矿标志;高磁低缓负异常场区、激电中梯极化率高值异常、电阻率低值异常梯度带附近为重要的地球物理找矿标志。522 Highland Gold Deposit is located on the NW-trending Duobaoshan-Zhengguang-Bacheli tectonic metallogenic belt in the east section of Xingmeng orogenic belt,and has good prospecting potentials.The deposit is a newly discovered gold deposit.The deposit type is tectonic altered rock type and the metallogenic epoch is Yanshannian.There are 2 gold ore bodies,8 gold mineralization bodies,1 zinc ore bodies and 4 zinc mineralization bodies delineated in the district.The ore bodies occur in altered granodiorite in veins,controlled by the intersection of NE-and NW-trending faults,and silicification,potassic alteration,sericitization and epidotization are closely related to the gold mineralization;1∶20000 soil geochemical survey shows that Ag,Cu,Pb,Zn and Sb comprehensive anomaly is the good geochemical prospecting mark;areas adjacent to high magnetism low negative anomalous field,IP intermediate gradient parallactic polarizability high value anomaly,parallactic resistivity low value anomaly gradient zone are important geophysical prospecting marks.

关 键 词：地质特征 找矿标志 地球物理 地球化学 522高地金矿床 

分 类 号：TD15[矿业工程—矿山地质测量] P618.51[天文地球—矿床学]