大兴安岭森林景观区金化探异常查证方法探讨

大兴安岭地区为森林景观区，植被十分发育。不同地区剥蚀程度各有不同，剥蚀较严重的地区砂金分布广泛，化探异常与砂金分布相对应，而对寻找岩金关系不大。水系沉积物扫面开展了不同程度的查证工作，取得的效果并不理想。通过对景观区地球化学特征、异常查证方法、异常与金矿化的关系、区域剥蚀程度等进行探讨，合理有序应用查证方法，为提高找矿的命中率、缩短找矿周期提供了思路。

Analysis and Verification of Au Geochemical Exploration Anomaly in Forest Landscape Area, Great Xing'an Range

The natural vegetation iswell developed in forest landscape area, Great Xing′an Range. The grade of erosion is different in the different areas, and the alluvial gold is well distributed in the highly eroded area. The geochemical exp loration anomaly is similar to the distribution of alluvial gold, and has not relation to the looking for the rock gold. The verification of stream sediments survey has been put into effect, but the results were not ideal. The analyses of geochemistry of the landscape area, verification of anomaly, relationship of the anomaly and Au mineralization, and area erosion have been studied in this paper, the idea has been provided to apply the method of verification in a feasible order, and then p romote the ratio of hit the target of ore seeking and shorten the period of exploration.