《黄金》杂志(月刊) 第39卷 总第419期
2018年10月 第10期
目次
黄金地质
  • 精度磁法在青海哈西亚图地区钨矿勘查……周瑾,张瑶,路睿,白洪溪,李海宾,靳浩,沈娟
  • 摘 要:为了缩小找矿靶区,提高找矿效率,在青海哈西亚图地区进行了11万高精度磁法测量。通过磁测工作,圈定了4处异常,异常编号为C-1C-2C-3 C-4,异常与研究区的土壤地球化学异常和可能含矿的地段相对应。根据磁异常的解释结果,采用少量探槽工程揭露,查明了引起异常的原因,结合研究区内地层、构造、岩浆岩分布,发现了M3蚀变带,查明了蚀变带的蚀变类型和含矿特征,M3蚀变带经探槽取样分析,单样WO3品位达到0.03 %,为下一步深部寻找钨矿体提供了线索。从而说明了地面高精度磁法测量寻找钨矿床的可行性和有效性。

    Application ofground high-precision magnetic method to tungsten deposit exploration inHaxiyatu region of Qinghai……Zhou Jin,Zhang Yao,Lu Rui,Bai Hongxi,Li Haibin,Jin Hao,Shen Juan

    Abstract110 000 high-precision magnetic survey was conducted in Haxiyatu region ofQinghai to narrow down prospecting target area and improve prospectingefficiency.Through magnetic survey,4 anomalies were delineated namely theC-1,C-2,C-3 and C-4.The anomalies corresponded to the soil geochemicalanomalies in the region and the would-be ore-hosting spots.According to theinterpretation of the magnetic anomaly and the revelation of a few trenchingprojects,the causes of these anomalies were found out.Based on the distributionof strata,structures and magmatic rocks in the research area,M3 alteration zonewas found as well as its type and ore-hosting features.Samples from trenchingin M3 alteration zone were analyzed.The results show that WO3 gradein single sample reaches 0.03 %.The research provided hints for next-stepprospecting for tungsten ore bodies in deep section,and therefore proved thefeasibility and effectiveness of ground high-precision magnetic method fortungsten deposit exploration.

    Keywords:ground high-precisionmagnetic method; magnetic anomaly; alteration zone; tungsten ore body; Haxiyaturegion; Qinghai


  • 关键词:地面高精度磁法;磁异常;蚀变带;钨矿体;哈西亚图地区;青海
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