新疆阿尔泰山南缘的构造与矿产问题

新疆阿尔泰的构造位置处于西伯利亚与哈萨克斯坦两大板块接触带的北部边缘，火山喷发与侵入活动强烈，推覆构造发育。山区包括喀纳斯－青河一带的地背斜褶皱带和诺尔特地向斜褶皱带。阿尔泰山南缘主要包括克兰地向斜，与哈萨克斯坦广义的矿区阿尔泰相当，其南以额尔齐斯－玛因鄂博断裂为界，南、北构造性质不同。阿尔泰山区与伟晶岩有关的稀有分散元素矿产多。而阿尔泰山南缘与火山－侵入活动有关的矿产多，如铜镍、多金属和金矿。由于强烈的由北向南的推覆改造，很可能有相当一部分矿产被推覆改造而掩埋于深部，因此在阿尔泰山南缘寻找地下隐伏矿床十分重要。

ON SRRUCTURE AND MINERALS OF THE SOUTHERN MARGIN OF ALTAY Mt., XINJIANG

The Altay region is located at the northern margin of the contact zone of two plates,where volcanic eruption and intrusion are very active and nappe structure is developed. The mountain areas contain geoanticline fold belt along Kanas-Qinghe and geosyncline fold belt in Nurt. The southern margin of Altay Mts.mainly includes Kiran geosyncline,corresponding to the extensively-meaning ore district Altay,bounded to the south by Ertix-Mayinebo fracture. The structural property is different along the two sides.In the mountain areas are mainly rare elements related with pegmatites,in the southern margin of Altay are mainly those related with volcanic-intrusive activities,such as copper-nickle,multi-metal and gold deposits. Owing to the deformation of strong north-to-south nappe activity a reasonable part of mineral resources are probably buried in the deep ground. Thus it is very important to search blind ore deposits in the southern margin of Altay.