The Beier depression, which is located in the Hailaer basin, is a Cretaceous faulted depression with terrestrialsediments.
海拉尔盆地贝尔凹陷是一个以白垩系沉积为主的陆相断陷区。
2
Abstract: As the transition zone between terrestrial and Marine environment, carbonate platform sediments record information both from ocean and land.
摘要：碳酸盐岩台地作为陆地与深海间的过渡带，其沉积记录了海洋和邻近陆地的演化。
3
Nearshore shallow water environment, abundant terrestrial fine detritus, local reduction facies and zones are three cardinal conditions for the formation of uranium-rich sediments.