In this paper

basement and local structures of Shizhu synclinorium in east Sichuan are studied by means of satellite remote sensing images in combination with seismic

borehole and surface geologic data.As a result

the Huangshuiba and Mixi structures

and a series of subcircular images(possible local structure)are discovered.After having discussed the mechanism of their formation and relationship between these structures and sedimentary facies

such as bioherms

analysed the oil generation

migration

accumulation and preservation in the area

some assumptions are proposed by the writer for further oil and gas prospecting.