泰国沙空那空盆地哇伦矿区重力异常特征及钾盐找矿分析

Characteristics of Gravity Anomaly and Analysis of Potash Prospecting in Vallum Mining Area of Shakon Nakhon in Thailand

摘要:

沙空那空盆地处于滇藏印支褶皱系南段，属于印支中央地块，沙空那空盆地已发现他曲、乌隆、廊开、哇伦等多处钾盐矿床，是亚洲重要的蒸发沉积型钾盐矿成盐盆地，本次研究的哇伦矿区便位于该盆地的中心地带。为了解决矿区勘查之初所遇到的困难，本次工作对前人的研究成果进行了仔细分析，提出了前人成果的使用具有一定的局限性；本文结合已有地质、钻探资料，对矿区布格重力异常特征进行了再分析，做出了区内基底构造存在2个次级凹陷的推断，经钻孔验证，表明物探推断是正确的，进而据此圈定了2个找矿靶区，为下一步找矿工作指明了方向。

Abstract:

Based on the analysis of the difficulties encountered in the early exploration of the mining area, the limitations of the achievements of Mr Quyihua has been put forward in this paper. Based on the existing geological data, characteristics of bouguer gravity anomaly in the mining area has been ananlyzed again. It is concluded that there are two secondary depressions in the basement structures in the area. The drilling verification shows that geophysical inference is correct, and two prospecting target areas are delineated. It has pointed out the direction for the next prospecting work.