An review on geology study of carbonaceous-siliceous-pelitic rock type uranium deposit in China and the strategy for its development

Existing in the Cambrian silicalite formation composed of black shert and slate,the gold deposits are so clearly controlled by strata,host rock types and structures that their stratabound character is agreed by many geologists.

As a sediment formation, silicalite formation with a large sedimentary thickness is consist of siliceous rocks (cherts), mud stone/shale or callys, carbonatite and siltstone, and is charactered by enrichment in organic and bacterium-alga microbe.

This paper describes metallogenic characteristics,and the formation mechanism of those carbonaceous-siliceous-argillitic rock type uranium deposits occurring at the margin and in the basement of red basins,and proposes that there must be certain direct genetic relation between red basins and the formation of uranium deposits.

Deep-sea drilling has documented that shallow-water carbonate buildups resembling atolls are capping many of the northwest Pacific guyots.