Open AccessGravity effect of axially symmetric bodies using the one‐dimensional FFT
Author(s) -
Bodine John H.,
Karner Garry D.
Publication year - 1981
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1981.tb06951.x
Subject(s) - axial symmetry , geology , fast fourier transform , diapir , sedimentary basin , gravity anomaly , geometry , physics , geophysics , geodesy , sedimentary rock , mathematics , structural basin , paleontology , algorithm , oil field
Summary. A technique for rapid calculation of the vertical gravitational attraction of three‐dimensional axially symmetric bodies using the one‐dimensional Fast Fourier Transform (FFT) is presented and discussed. The calculation is rapid, efficient and accurate, and requires only a simple linear array to describe the body shape. This method is most useful for calculation of the gravity effect of long‐wavelength bodies such as oceanic seamounts or sedimentary basins and for the gravity effect of annular bodies such as up‐warped sedimentary strata around a salt diapir.