锡矿床与基性岩超基性岩的关系探讨

Research on Relation Between Tin Ore Deposit and (U1tra) Ferromagnesian Rock

长期以来,人们一直认为锡是地壳的特征元素,锡矿床的形成通常与花岗岩有直接的关系。文章通过查阅大量国内外有关资料,证实了基性超基性岩与锡矿床的形成有密切的关系。在此基础上,探讨了云南个旧锡矿床的成因,认为印支期玄武岩对个旧锡矿床的形成至少提供了物质来源。

It has long been considered that because tin is a characteristic element of the crust, there should be direct relation between tin ore deposit and granite. By means of consulting much information, this paper proves that there is a close relation between tin ore deposit and ferromagnesian rock. And the paper researches on the origin of Gejiu tin deposit, and believes that the basalt of the Indo_Chinese epoch provided matter source for the formation of Gejiu tin ore deposit.