CSAMT法在铝土矿调查评价项目中的应用研究

APPLICATION STUDY OF CSAMT METHOD TO INVESTIGATION AND EVALUATION PROJECT OF BAUXITE

采用V8多功能电法工作站在河南新安石寺—北冶地区铝土矿调查评价项目中进行可控源音频大地电磁测深(CSAMT)。CSAMT法凭借其抗干扰能力强、探测深度大、资料解释手段成熟等特点,在铝土矿调查评价项目中起到了至关重要的作用。它清晰地反映了调查区铝土矿含矿目标层、奥陶系古风化壳形态沿走向的变化情况以及地层的产状,为地层的划分及后续铝土矿调查评价工作提供了深部电性信息,为钻孔布设和矿产预测提供了依据。

This paper mainly introduces the application of the Controlled Source Audio Frequency Magnetotelluric Sounding（CSAMT） in bauxite investigation and evaluation project of Henan Xinanshi Temple and Beiye region. It used the V8 muhifunctional electrical workstation. The CSAMT method have the characteristics such as strong anti-interference ability, greater probing depth and mature means of data interpretation. It plays a critical role in the pro- ject of bauxite survey and evaluation. It clearly reflects the bauxite ore target layer in the investigation area, the Or- dovician weathering crust morphology variation along the strike and stratigraphic occurrence. Provide the deep elec- trical information for stratigraphic division and subsequent bauxite survey and evaluation work, and provide the ba- sis for drilling design and prediction of mineral resources.