... from erosion by currents. fine sand layer water level river geology survey water area upstream oil & gas stratum midstream oil & gas sand layer pipeline construction geologic strata survey line construction existence exploration bed rock pipeline reservoir...

... of borehole cores, and geophysical 2D-resistivity profiling have been carried out. Results of these extensive studies reveal that the main campus area is truncated by two intersected faults of different properties, and many bedding slips developed in underground bed rocks. huafan university 2d...