由于锗的离子半径与锌的离子半径相近,一般认为铅锌矿床中的锗主要与锌发生类质同像赋存于闪锌矿中,但也有证据表明,铅锌矿床中的锗也可富集于方铅矿中。对四川会东大梁子大型铅锌矿床进行了电子探针研究,锗特征X射线面扫描结果表明:该铅锌矿床原生矿石中方铅矿中的锗含量明显高于闪锌矿中的锗含量,且锗均匀分布在方铅矿中,没有出现明显高于本底的富集点,初步推测锗在方铅矿中以类质同像的形式存在。该结果为铅锌矿床锗富集于方铅矿中提供了新证据。 Since the ionic radius of germanium is similar to the ionic radius of zinc, germanium in lead-zinc deposits is generally believed to occur in the sphalerite mainly in the same manner as the zinc-occurring species, but there is also evidence that germanium in the lead-zinc deposits is also rich Gathered in galena. The electronic probe was used to study the large-scale Pb-Zn deposits in Huidong, Sichuan Province. The results of X-ray scanning of germanium show that the content of germanium in the galena in the primary ore of the lead-zinc deposit is obviously higher than that of the germanium in the sphalerite. Germanium is uniformly distributed in galena, and there is no obvious enrichment point higher than the background. It is preliminarily presumed that germanium exists in the form of isomorphism in galena. This result provides new evidence for the enrichment of germanium in lead-zinc deposits in galena.