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甲岗雪山钨钼(铋)矿床成矿作用受嘎若二长花岗岩体的控制。地球化学特征研究结果表明,嘎若岩体属于钙碱性岩系,为S型花岗岩。结合区域岩浆活动演化历史,判定嘎若岩体形成于碰撞挤压造山作用以后的陆内拉伸构造环境,源区具有壳幔混合带的性质。
Jigang Xueshan Tungsten Molybdenum (Bismuth) mineralization is controlled by Gaoruozhang granite body. Geochemical characteristics of the results show that, if Ga rock body belongs to calc-alkaline rock series, is S-type granite. According to the evolution history of magmatic activity in the area, it is determined that the geru rock body is formed in the intracontinental tensile tectonic environment after collision orogenic orogeny, and the source area has the properties of crust-mantle mixed belt.