| 大兴安岭原始森林覆盖区化探异常查证方法研究与实践 |
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| 引用本文： | 邵军,王世称,张炯飞,朱群,李振祥,刘书金.大兴安岭原始森林覆盖区化探异常查证方法研究与实践[J].地质与勘探,2004,40(2):66-70. |
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| 作者姓名： | 邵军 王世称 张炯飞 朱群 李振祥 刘书金 |
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| 作者单位： | 吉林大学地球科学学院,长春,130026;沈阳地质矿产研究所,沈阳,110032;吉林大学地球科学学院,长春,130026;沈阳地质矿产研究所,沈阳,110032;赤峰地质勘查研究院,赤峰,024000 |
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| 基金项目： | 中国地质调查局地质调查项目 |
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| 摘 要： | 文章综述了原始森林覆盖区勘查技术方法研究历史、现状及意义.通过对区内某1:20万化探异常进行追踪、查证方法的实验性研究,初步确定适合原始森林覆盖区的物探方法和化探方法.对具有成矿远景的1:20万异常的查证方法、过程为:①1:5万网格法水系沉积物或1:5万土壤测量;②配合以适量的1:1万或1:2万剖面土壤测量,最终达到分解异常、缩小找矿靶区的目的;③1:1万～1:2万地质简测,结合地表工程确定是否为矿致异常,初步确定矿化类型;④选用高精度磁测、双频激电测量方法进行1:2.5万或1:1万的面积性物探测量;⑤运用槽探、坑探、浅井及钻探等探矿手段寻找工业矿体.对二根河、洛古河、阿南林场3个1:20万异常查证证明该方法是适宜森林覆盖景观区的快捷且行之有效的异常查证方法.
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| 关 键 词： | 化探方法 物探方法 森林覆盖区 大兴安岭北段 |
| 文章编号： | 0495-5331(2004)02-0066-05 |
| 修稿时间： | 2003年3月7日 |
INVESTIGATION AND PRACTICE OF GEOCHEMICAL ANOMALY EXPLORING MEANS IN PRIMEVAL FOREST COVERED AREA IN DAXINGANLING MOUNTAINS |
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| SHAO Jun.INVESTIGATION AND PRACTICE OF GEOCHEMICAL ANOMALY EXPLORING MEANS IN PRIMEVAL FOREST COVERED AREA IN DAXINGANLING MOUNTAINS[J].Geology and Prospecting,2004,40(2):66-70. |
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| Authors: | SHAO Jun |
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| Abstract: | The research history, current situation and significance of prospecting technology and means in the primeval forest covered area are summarized. Suitable geochemical and geophysical methods are initially defined in the primeval forest covered area by studying the exploration means of a (1:200 000) geochemical anomaly. To a 1:200 000 geochemical metallogenesis anomaly, the exploration methods and procedures include, (1) stream sediment survey in network model or soil survey in 1:50 000 scale; (2) soil survey on regional sections in 1:10 000 or 1:20 000 scale to finally disintegrate geochemical anomaly and reduce the prospecting target; (3) sketch geological survey in 1:10 000 or 1:20 000 scale with surface work to identify the mineralization-caused anomaly; (4) geophysical survey by high-precision magnetic measurement and bi-frequency stimulate electricity; and (5) exploration for industrial ores by prospecting trenches, tunnel, shallow well and drilling. It is testified that the methods and procedures are suitable, quick and efficient to explore anomaly by practicing in Ergenhe, Luoguhe and Anan Forestry anomalies. |
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| Keywords: | geochemical method geophysical method primeval forest covered area Daxing'anling mountains |
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