THE SEDIMENTARY AND DIAGENETIC FEATURES STUDY ON THE MAOKOU STAGE OF SUSONG, ANHUI
Yang Qi (Bureau of Petroleum Geology of East China)
Maokou stage (P1)is a continuous regressive sequence in Susong of Anhui. Shelf, open sea platform and grain beach facies developed successively in this area. The diageneses are mainly cementation, recrystallization, dolomitization, pressure solution, dissolution and filling. The diagenetic environments of Maokou stage in the study area may be divided into four groups:(1 )sea water , (2)meteoric fresh water,(3)burial and (4)-epidiagenetic environments.