The Taixi Basin is a superimposed Mesozoic-Cenozoic basin located in the Taiwan Strait

with its main body lying between Taiwan Island and onshore Fujian.Large volume of hydrocarbon has been discovered in the eastern basin and Taiwan Island.Based on the previous studies

the study focused on stratigraphic distribution

sedimentary features and hydrocarbon generation potentials of the basin through fine interpretation of seismic data and marine-continental comparative analysis.The results show that evolution of the Mesozoic-Cenozoic basin could be subdivided into three stages

namely the Cretaceous-Eocene rift depression lacustrine stage

the Oligocene uplift denudation stageand the Miocene-present sedimentation and subsidence stage.Correspondingly

three sets of source rocks are developed in this basin including the Lower Cretaceous

Paleocene and Eocene source rocks.The reservoir types are mainly clastic rocks

such as lacustrine facies

delta

subaqueous fan and channel sands.Medium-sized oil-gas fields may develop in the study area due to its favorable geological conditions for hydrocarbon generation and accumulation

thus its hydrocarbon exploration potential is believed to be relatively high.