关键词: 东濮凹陷, 盐膏层, 盐构造, 岩石结构, 油气成因, 油气聚集

Abstract: This paper gives a general feature on the texlure distributions and depositional environments of the salt-anhydrite deposits in the depression which was deposited in deep-water environment, and a discussion of three types of salt deposits: salt-dome, salt-pillow and salt monochine, so as to give a preliminary study on the genetic mechanism of the salt structure in Dongpu depression. Finally, it is stated that the salt deposits relates closely to the occurrence of hydrocarbon as viewed from the relations of the salt deposits to conditions of the source rock, and the salt structures to oil accumulation, as well as the lateral changes of salt lithofacies to the formation of oil pools.