A Sedimentary Model for Interfingering Clear-Water and Turbid-Water Deposits

It is an important feature that the clear-water carbonate and turbid-water terrigenous clastic deposits coexist and are imtercalated in Middle and Upper Carboniferous coal-bearing formations in North China. This phenomenon tends to be closely related to palaeogeographic settings, transgression and regression and topography in sedimentary and terrigenous areas. On the basis of sedimentary facies analysis of many Middle and Upper Carboniferous sections in North China, especially those in the Jungar coalfield on the northern margin of North China coal-bearing basin, the author has made an approach to the genesis of interfingering clear-water and tubid-water deposits and a tentative sedimentary model has also been proposed in this paper.