塔里木地台金刚石成矿地质条件和找矿方向

GEOLOGICAL CONDITIONS FOR THE FORMATION OF DIAMOND DEPOSITS AND DIRECTION IN DIAMOND PROSPECTING IN THE TARIM PLATFORM

摘要: 对塔里木地台地质条件分析结果表明,它和成矿地台区相似,都是古老的地台区,有相似的构造和地质条件,有金伯利岩的伴生岩石,阶地金刚石砂矿等。根据这些,可以圈出成矿远景区,如:伴生岩石分布区,两个次级构造单元之间的断裂带成矿远景区,阶地砂矿区等。因此,塔里木地台成为寻找金刚石有希望的地区。

Abstract: Analysis of geological conditions of the Tarim platform indicates that the Tarim platform is similar to the metallogenic platform areas in the following aspects:they are both ancient platform regions and there exist similar structural and geological conditions, associated rocks of kimberlites and terrace diamond placers. According to these, ore prospect areas may be delineated, for example, areas of associated rocks and ore prospect areas of a fracture zone between two secondary tectonic units. Therefore, the Tarim platform is a promising area for diamond finding.