Abstract：The gravity anomaly of free-space field generally indicates the ba-sement undulation in the sedimentary basin on continental shelf.We can divide the sedimentation overlying the basement into different density bands by adopting seismic section and approximately express them as 2-D polygons. The gravity anomaly caused by the sedimentation overlying the basement can be obtained by calculating the overall gravity anomaly of all polygons. Finally, the density distribution of the basement rock in this sedimentary basin can be deduced using the difference between the calculated gravity anomaly of the overlying sediment of the basement and the measured value.
引用本文:
苏达权. 利用重力资料推算沉积盆地的基底密度[J]. 石油地球物理勘探, 1983, 18(4): 369-378.
SU Da-quan. Reckoning the density of the basement rook of sedimentary basin by gravity data. OGP, 1983, 18(4): 369-378.
