吉林大学学报(地球科学版) ›› 2021, Vol. 51 ›› Issue (4): 1042-1053.doi: 10.13278/j.cnki.jjuese.20200227
史冬岩1,2, 张坤1,3,4, 张玉鹏2, 高勇2, 唐伟2, 吕明奇2
Shi Dongyan1,2, Zhang Kun1,3,4, Zhang Yupeng2, Gao Yong2, Tang Wei2, Lü Mingqi2
摘要： 黑龙江省黑河市340高地金矿点大地构造上位于兴安地块东北缘，多宝山Cu-Au-Mo-W-Fe成矿亚带内，其地貌为浅覆盖区，找矿较为困难。本文采用浅钻技术取样，对研究区进行基岩填图，圈定出以硅化为中心、青磐岩化为外围的蚀变矿化带。对基岩样品进行岩石地球化学分析，通过主成分分析，确定有6个主成分特征值大于1，其中第二主成分与金元素关系密切，是研究区有效的找矿标志。高精度磁测结果显示区内构造以NNW向为主，且其线性低值异常或与蚀变引起的退磁有关。对区内的地物化异常进行工程查证，发现金矿点1处，圈定预测靶区1处。
中图分类号:
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