岩相、生物相、古地理与微细粒金矿矿源层

Study on the Relationship Among the Lithoface, Bioface, Palaeoceography on and Source Beds of Microacopic Disseminated Gold Deposit

本文以黔西南二叠——三叠系为例,探讨微细粒浸染型金矿矿源层与古地理、岩相、岩性、化石群落的关务,认为盆地边缘相、台盆相的含金量高于其它相。金往往在泥岩、粘土岩和富含软体动物的层位中富集。

This paper, taking the parmian system and Triassic system of Southwest Guizhou as example, discussed the relationships among microscopic disseminated gold source beds and palaeogeography lithoface, lithology, oryctocoenosis, held thad the gold contentsof the basin marginal facies, platform facies are higher than other facies, the gold concentrateson mudstone, clay rock and the beds that contain rich mullusk faunas.