Many of the world's large basins have evaporite distributions, and evaporite has a very close relationship with the capability of sedimentary basin. In order to clarify the influence of evaporite on the capability of sedimentary basin, this paper, through a large number of literature analysis, argues that lagoon and salt lake environment species can be used as the best parent material of hydrocarbon source rocks, and that under the unique action of "solar pool effect" in the evaporite basin, the organic matter can be effectively converted into hydrocarbon source rocks. It is analyzed that reservoir of evaporite considering its plasticity and liquidity can provide a good channel for the migration and accumulation of oil and gas. Also discussed is that the good sealing capacity of evaporite may provide a good trap for oil and gas occurrence. Eventually, the control mechanism of evaporite oiliness in sedimentary basin is pointed out.

evaporite basin  /  organic matter  /  solar pool  /  mechanism of hydrocarbon generation  /  oil and gas reservoirs