新疆金地球化学块体内资源潜力预测及找矿方向探讨

新疆地域广大，成矿地质和地球化学条件极好，有着巨大的找矿潜力．据统计，在新疆已知岩金矿床中。有70％是通过区域化探直接或间接发现的．本以谢学锦院士1995年提出的地球化学块体理论为指导，利用区域化探信息系统和新疆已有区域化探数据，从地球块体角度对新疆金矿进行了资源潜力预测和找矿方向探讨．全疆共圈定金地球化学块体27个，并对各金地球化学块体基本特征及其与已知金矿的对应关系进行了剖析．研究表明。金地球化学块体规模及浓集度越大、块体结构越复杂，其金资源量和资源潜力就越大；反之越小．在综合研究基础上。按金资源量由大到小的顺序，将新疆各地区金资源潜力大小和金矿主攻地区排序为西天山、东天山、西准噶尔、阿尔泰、西昆仑、东准噶尔和阿尔金地区．

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.