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通过对娘古处、洞嘎和甲马3个矿区计11个磷灰石和锆石裂变径迹年龄分析表明,全区主要有3个成矿期,具体年代约分别为30～40 Ma,16～28 Ma和11～14 Ma,这与区域构造活动期相符.成矿温度均低于锆石裂变径迹退火带的底界温度(～320℃),亦说明陆-陆碰撞以来的构造热事件温度均未超过～320℃.
Through the analysis of 11 apatite and zircon fission track ages in the three mines of Ngugu, Donggar and Jiama, there are three main mineralization stages in the whole area, with specific ages of about 30-40 Ma, 16 ~ 28 Ma and 11 ~ 14 Ma, which are consistent with the regional tectonic activity.The metallogenetic temperature is lower than the bottom temperature of Zircon fission track annealing zone (~ 320 ℃) Thermal events did not exceed the temperature of ~ 320 ℃.