High-density Resistivity Surveying and the Features of Boundary Fault along the Edge of Anyuan Basin;

Wan'an Basin is a Cenozoic petroliferous basin in South China Sea,with the maximum thickness of sediments from Upper Eocene to Quaternary up to 12,000m.

The generating machenism and structural evolution of Wan'an basin is studied based on geological structure of its basement and stratigraphical distribution.

Wan'an basin is a large scale Cenozoic sedimentary basin which is located on southwest shelf of the South China Sea.

Vegetation changes and human influences on natural environments since 5 000 a BP were discussed based on the pollen data supported by radiocarbon dating from Cangumiao and Yujiawa profiles in Qian an Basin, the southern area of Yanshan Mountain.

The structural evolution and prognosis of uranium exploration in Ning an basin;

Apply deposit physics and chemistry biologic parameter to analysis the deposition enviroment in Jian basin,outstanding results are gained,and some advise are allamulated for the analyse of deposition enviroment of middle cainozoic era.

The Wan an basin, located in the southwestern part of the South China Sea, belongs to a large scale pull-apart basin.

Five-type traps, including compression, extension, sheal, gravity and strata-lithology, have been divided on studing the feature of different tectonic movements, seismic sequences and deposition property found in Wan an Basin, and the authors have modeled the evolu- tion relationship between them according to south and north sections, further,analyzed the genesis of traps.

There are four types of hydrocarbon reservoirs which are hill trap with basement rock,fault block trap,anticlinal trap and lithological-stratigraphic trap with carbonate plat- form or reefs in Wan an basin.