The stratum of main source rock among the Marine facies is the upper Sinian and the Paleozoic group.
其中海相地层中的主力烃源岩层为上震旦统和上古生界石炭—二叠系。
The favorable source beds in this district are Presinian Kangding Group and DengyingFormation of upper Sinian series.
上震旦统灯影组前震旦系康定群是本区有利矿源层。
This paper deals with the relationship between uranium and strata, rock type, facies in the pre-Upper Sinian of west and central Hunan.
本文探讨了湖南西部和中部前上震旦统铀同地层、岩石类型、岩相之间的关系。
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