| 土壤地球化学测量在智利HenanX矿区应用效果 |
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| 引用本文： | 王明国,白凤军,张晓永,李忠烈,王明明,王晓辉.土壤地球化学测量在智利HenanX矿区应用效果[J].物探化探计算技术,2013(6):727-732. |
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| 作者姓名： | 王明国 白凤军 张晓永 李忠烈 王明明 王晓辉 |
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| 作者单位： | 河南有色金属地质勘查总院,郑州450052 |
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| 基金项目： | 中央地质勘查基金（10216A014,201120801600112） |
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| 摘 要： | 智利地处环太平洋成矿带，铜储量约占世界30％。为促进我国地勘企业在智利北部荒漠景观区地球化学勘查工作，在智利第一大区东南部HenanX矿区进行了1：10000土壤地球化学测量。结合前期土壤粒度试验和1：50000土壤测量成果，本次土壤测量采集B层或B＋C层-40目土壤样品，圈定了十一处铜金等综合异常。通过槽探和钻探对异常进行查证，发现了良好的找矿线索，该区具有找到脉型或斑岩型铜矿的潜力，且具有找到一定规模金矿床的可能，表明在智利北部荒漠化景观下土壤地球化学测量能够达到明确找矿目标，缩小找矿范围，确定找矿靶区的目的。然而在智利北部荒漠化景观下，由于气候环境、地形地势等条件限制，矿体难于在地表形成规模较大的化探异常，因此必须重视弱小异常的评价和验证。
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| 关 键 词： | 土壤地球化学测量 异常查证 智利 |
The applying effect on soil geochemical survey in the Henan X ore district,Chile |
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| WANG Ming-guo,BAI Feng-jun,ZHANG Xiao-yong,LI Zhong-lie,WANG Ming-ming,WANG Xiao-hui.The applying effect on soil geochemical survey in the Henan X ore district,Chile[J].Computing Techniques For Geophysical and Geochemical Exploration,2013(6):727-732. |
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| Authors: | WANG Ming-guo BAI Feng-jun ZHANG Xiao-yong LI Zhong-lie WANG Ming-ming WANG Xiao-hui |
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| Institution: | (Henan Nonferrous Metal Geological Exploration Institute, Zhengzhou 450052, China) |
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| Abstract: | Chile is located in the Pacific rim metallogenic belt, its＇ copper reserves account for about 30% of the world. For promoting the geological exploration of China geological prospecting enterprises in desert landscape of northern Chile, 1 ： 10 000 soil measurement were carried out in Henan X mine. With sample size fraction experiment and 1 ： ,50 000 soil measurement, it was known that the sampling horizon is I3 or B＋C soil and the best sampling size fraction is --40 mesh grain size. 11 composite anomalies were delineated by applying the method to soil survey. Some good prospecting clues were found with anomaly inspection by trenching and drilling project. It is possible to find vein or porphyry copper and certain scale gold mine in the area. It showed that the application of this method can further clarified prospecting target, delineated prospecting targets, reduced ore-prospecting area, and increased prospecting efficiency. Because of the characteristics of cli- mate and topography in arid desert landscape, it was difficult to produce bigger geochemical anomalies. It need to pay atten- tion on the evaluation and verification of small anomaly. |
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| Keywords: | soil geochemical survey anomaly inspection Chile |
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