Summary of Effective Prospecting Methods in Qimantag Area, Qinghai Province
详细信息
- 责任者：He Shuyue (Third Institute of Qinghai Geological Mineral Prospecting ; Xining 810029 ; China) ; Shu Shulan
- 刊名：Mineral Deposits
- 出版年：2013
- 卷期：32(1)
- 关键词：成矿预测 ; metallogenic prediction ; 青海 ; Qinghai Province
- 页码：p.187-194
- 图表：illus., 23 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
摘要
This paper has summarized the effective methods which resulted in prospecting breakthrough in Qimantag in recent years.There are four effective prospecting methods in Qimantag area.The first is the geochemical prospecting method:the stream sediment comprehensive anomalies delineated by 1:200 000 geochemical prospecting surface work have locked more than 60% of the large and medium-sized known deposits in the area,and the electrochemical method can accurately locate polymetallic ore bodies in the coverage and half-covered areas,increasing the prospecting hit rate.The second is the precision magnetic method,which has played a pivotal role in prospecting,the 1:10 000 high-precision magnetic survey delineated a series of linear or planar positive magnetic anomalies with certain sizes(more than 200 m in length),covering almost all of the iron polymetallic ore deposits The third is the comprehensive analysis of prospecting methods by the cross-section measurement,which provides a reliable basis for accurate prediction of the favorable prospecting locations and visualized information through 1:10 000 geological survey and cross-section survey.The fourth is the application of mineralization "absence",implying new prospecting breakthroughs for other types of deposits besides skarn-type in the Qimantag metallogenic belt.In a word,the prospecting mainly relies on the comprehensive utilization of ground precision magnetic method,stream sediment survey,geo-electrochemical method,geological section and remote sensing,in close association with metallogenic regularity,to achieve breakthrough in Qimantag region.
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