内蒙古阿拉善右旗北大山中段物化探找矿应用

Application of geophysical and geochemical prospecting in the middle section of Beidashan area,Alagxa Right Banner,Inner Mongolia

北大山位于阿拉善地块中部,巴丹吉林断裂以南的雅布赖—巴音诺尔公晚古生代大陆弧褶皱带,本次测区位于北大山中段。该区的磁法工作很好的揭露岩浆岩之间侵入关系,构造特征及含矿岩体等找矿标志,圈定了找矿靶区;化探异常进一步佐证了磁异常,缩小了找矿靶区;物化探异常为下一步工程验证提供了重要支撑,找矿目标清晰明确,加快了矿区勘查找矿工作,大大缩短了勘查周期。

Beidashan is in the middle of the Alashan block,and in the Late Paleozoic continental arc fold belt of Yabulai-Bayinnuoergong,south of the Badain Jaran fault.The working area is located in the central part of Beidashan area.Survey with magnetic method in the area,gave a good exposed on the relationship of intrusive rocks,structural characteristics,ore-bearing rock body signs,and the ore prospecting target area was finally delineated.The geochemical anomalies had further verified the magnetic anomaly and shrank the prospecting target area.The geophysical and geochemical anomalies could provide important support for the further verification of deep engineering,make the prospecting objectives clear and definite,accelerating the prospecting work in the mining area.