黄金科学技术 ›› 2022, Vol. 30 ›› Issue (5): 651-663.doi: 10.11872/j.issn.1005-2518.2022.05.173
• 矿产勘查与资源评价 • 下一篇
张玉鹏1(),史冬岩2,3,4,吕明奇1,李成禄1(),张坤2,唐伟1
Yupeng ZHANG1(),Dongyan SHI2,3,4,Mingqi LV1,Chenglu LI1(),Kun ZHANG2,Wei TANG1
摘要:
黑龙江省三道湾子地区是我国典型的浅覆盖区,也是重要的金多金属成矿集中区,区内已发现三道湾子、北大沟、纳金口子、340高地和三道湾子南山等10多处金矿床(点),找矿潜力巨大。区内开展了多次土壤地球化学测量工作,但尚未取得找矿突破。通过在研究区开展多种采样网度、粒级和层位的对比试验,确认了最佳的化探采样方法,即采用50 m×50 m网格化的岩屑地球化学测量技术方法。在对区内地球化学特征和元素共生组合特征等进行相关分析的基础上,结合区域成矿地质条件,圈定出综合异常30处,主成矿元素Au、Ag在有利构造部位强烈富集。通过异常查证,新发现金、银矿体12条,金矿体23条,并圈定出3个找矿远景区,找矿效果良好。研究表明:在三道湾子地区开展岩屑地球化学测量,能够快速、准确地圈定矿化蚀变范围,提高找矿效果,是行之有效的找矿方法,可为同类型森林沼泽地球化学景观区内找矿工作提供重要参考。
中图分类号:
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