THE APPLICATION OF SOIL GEOCHEMICAL SURVEY TO GEOLOGICAL PROSPECTING IN TARAPACÁ REGION,CHILE
WANG Ming-guo1,2, ZHANG Xiao-yong1,2, BAI Feng-jun1,2, WEN Jing-jing1,2, WANG Ming-ming1,2
1. Henan Nonferrous Metal Geological Exploration Institute, Zhengzhou 450052, China;
2. Key Laboratory of Deep Ore-prospecting Technology Research for Non-ferrous Metal of Henan Province, Zhengzhou 450052, China
To verify the effects of soil survey in the area of arid desert landscape in northern Chile, the authors conducted sample size fraction experiment, and the results show that the sampling horizon is B or B＋C soil and the best sampling size fraction is -40 mesh grain size. Through applying the method to soil survey, some Cu, Au and other anomalies were delineated, several new copper ore bodies were found. The centers of the anomalies coincide well with the copper ore bodies. The effect of soil survey is fairly good. Nevertheless, anomaly inspection shows that arid desert landscape is not conducive to the formation of geochemical anomalies, and the role of 1:50,000 soil measurement in controlling the anomaly is limited. It is therefore better to use the large-scale geochemical survey.
王明国, 张晓永, 白凤军, 温静静, 王明明. 土壤地球化学测量在智利塔拉帕卡大区 地质勘查中的应用[J]. 物探与化探, 2013, 37(3): 394-399.
WANG Ming-guo, ZHANG Xiao-yong, BAI Feng-jun, WEN Jing-jing, WANG Ming-ming. THE APPLICATION OF SOIL GEOCHEMICAL SURVEY TO GEOLOGICAL PROSPECTING IN TARAPACÁ REGION,CHILE. Geophysical and Geochemical Exploration, 2013, 37(3): 394-399.
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