川西甲基卡、容须卡和恰都地区伟晶岩脉地球化学特征

Geochemistry of Pegmatite Veins in Jiajika, Rongxuka and Qiadu,West Sichuan

本文结合整装勘查项目,对甲基卡地区、容须卡地区及恰都地区的伟晶岩开展了主、微量元素地球化学特征的研究。全岩化学分析结果显示,三地的伟晶岩脉具有相似的主、微量元素特征,在成矿元素方面又有差异性,甲基卡Li、Rb元素均具有较好的找矿远景,容须卡Li、Rb元素含量稍低,但也具有找矿远景,而恰都伟晶岩Li含量较低,Rb元素可能具有较好的找矿远景。

This paper holds a discussion about geochemistry of major and trace elements of pegmatite veins in Jiajika, Rongxuka and Qiadu, west Sichuan based on the integrated exploration project. The whole rock analyses show that the pegmatite veins in three places are similar in major and trace elements and differ in ore-forming elements. The pegmatite veins in Jiajika are richer in Li and Rb than those in Rongxuka, while pegmatite veins in Qiadu are characterized by low Li and high Rb.