昭通铅锌矿床闪锌矿微量元素地球化学特征

昭通铅锌矿床是滇东北富锗铅锌矿集区的一个大型矿床。前人对该矿床的研究集中于成矿构造背景、成矿物质和成矿流体特征、构造控矿特征、矿床成因以及成矿预测等方面,并取得了显著的研究成果。然而,在矿床成因方面仍存在较大争议。闪锌矿是铅锌矿床的主要矿石矿物之一,运用闪锌矿微量元素地球化学特征研究,可以作为判别矿床成因的一种标志。在总结矿床地质特征的基础上,开展闪锌矿矿相学及微量元素地球化学的研究。

The Trace Elements Geochemical Characteristics of sphalerite in Zhaotong Lead-Zinc deposits

The Zhaotong large-size zinc-lead deposit is one of the germanium-rich lead-zinc ore-concentrated area Northeast of Yunnan. The studies of the zinc-lead deposits are focus on the tectonic setting, ore-forming materials and characteristics of ore forming fluid, The characteristics of ore-controlling structures, the genesis of the deposit and Metallogenic prediction. However, it is still disputed in the genesis of the deposits. Sphalerite is one of the main minerals of zinc-lead deposits. The research of characteristics of trace elements in sphalerite can be used as a sign of distinguishing the genesis of zinc-lead deposits. This paper is based on the summary of the geological characteristics of the deposit, the ore microscopy and trace element geochemistry of sphalerite to disguising the genesis of deposit.