四川甲基卡锂辉石矿床西缘地面高精度磁测异常特征及找矿预测

为厘清甲基卡锂辉石矿床西缘四川康定亚中地区穹隆构造—花岗岩浆—矿化伟晶岩三者间关系,开展了地面高精度磁测工作。通过分析磁异常特征,圈定磁测异常31处,断裂构造3个,划分出1处矿产勘查的有利地段,异常编号为M17、M26、M27、M28、M29、M30、M31,该异常带与瓦多—长征热液构造穹隆位置吻合,这些异常区为寻找隐伏岩体,发现甲基卡式锂辉石矿床指明了方向。

Anomalies characteristics of ground high-precision magnetic survey and the prospecting prediction in Jiajika style spodumene deposits, Sichuan

To clarify the relationship between dome structure, granite and mineralized pegmatite in the Kangding-Yazhong area, ground high-precision magnetic survey was carried out. We delineated thirty-one magnetic anomalies, three fault structures, and divided a favorable area for prospecting by analyzing the characteristics of magnetic anomalies. The magnetic anomaly number is M17, M26, M27, M28, M29, M30, and M31. These magnetic anomalies zone are consistent with the Waduo-Changzheng hydrothermal dome structure. These magnetic anomalies provided significant clue for looking for hidden rocks and finding the Jiajika style spodumene deposits indicating the direction.