A research method synthesizing petrographic facies, log facies and seismicfacies was adopted to define the fan delta of abrupt slope type and turbiditesystem.

• 运用沉积微相、测井相和地震相三相紧密结合的研究方法,确定了该区发育陡坡型扇三角洲--浊流沉积体系。