PREDICTION OF RESOURCE POTENTIAL AND DISCUSSION ABOUT PROSPECTING-DIRECTIONS OF GOLD MINERAL RESOURCES BY GEOCHEMICAL BLOCKS THEORY IN XINJIANG

Xinjiang is large in area, and has advantageous geological and geochemical setting for ore-forming, and has huge prospecting potentiality. Result of statistics showed that 70% of rock-gold mineral reserves was found directly or indirectly by regional geochemical exploration. According to the theory of geochemical blocks brought forward by academician Xie Xuejin and based on the regional geochemical data of Xinjiang, the gold mineral potential was predicted using the Information System of Regional Geochemistry. The paper discussed the prospecting directions of gold mineral in the method of gold geochemical blocks for the first time. 27 gold geochemical blocks had been established in Xinjiang. The paper analyzed basic characteristics of the blocks and the relation between geochemical blocks and gold deposits, and pointed out that the lager the scale is, the more concentrated the block occur and the more complicated the structure is , the larger the resources potential is and the better the prospect is. On the basis of this, the amount of gold resource, the gold resource potential , the order to exploration for gold in Xinjiang goes down in sequence from west Tianshan, east Tianshan, west Zunga-er, Aertai, west Kunlun to Aerjin regions.