THERMAL CHARACTERISTICS AND PETROLIFEROUS PROSPECTS OF MARINE CARBONATE ROCKS OF NANPANJIANG AREA

Combined with the characteristics of the thermal evolution of carbonate rocks in the area, the paper studies the regularities of thermal evolution of sedimentary organic matter. Clear explanation of lower limit values for organic carbon contents in carbonate source rocks and of relations between H/C and R^o for kerogen at different stages of thermal evolution are given. In addition, the limits of petroliferous evolution of kerogen and exploration prospect are discussed.