重力三维聚焦反演在大盐滩深部卤水勘查中的应用

大盐滩地区盐湖企业面临水资源和盐矿资源双重危机,利用重力方法探寻新资源具有重要的实际意义。本文对该区布格重力异常进行三维聚焦反演,获得了大盐滩地区三维剩余密度结构。通过研究发现,大盐滩地区浅地表高低度异常,表征着赋存较为丰富的盐矿资源,但地层中水资源较为贫瘠,浅表水资源主要赋存在山前冲积扇及断裂带内。中深层位不仅具有多个含水层,而且出现多处低密度异常区(T1～T4),可能为深部卤水富集体的反映,是探寻新卤水资源的有利靶区。依此建议在阿尔金山山前冲积带及断裂带内寻找新的淡水资源,并在成矿有利区,开展深部卤水资源勘查工作。

The Application of Gravity 3D Focusing Inversion in the Brine Exploratation in Dayantan Area

In order to alleviate the great salt lake salt flats area enterprises face a double crisis of water and salt mine resources, the bouguer gravity anomaly in the area of 3 D focusing inversion, won the large salt flat area residual density 3D structure. Through the study found that the salt flats in shallow surface abnormal high and low degree, characterization of the occurrence is relatively rich in salt resources, but the formation of water resources is relatively poor, shallow water mainly occurs in the piedmont alluvial fan and the fault zone. Have multiple aquifers in deep level not only, and appear in low density anomalies (T1 ~ T4), may be deep brine rich reflection of the collective, is a favorable target areas to explore the new brine resources. We suggest that find new fresh water resources in the piedmont alluvial and the fault zone, and the mineralization favorable area, deep brine resources exploration work.