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CALCUL DE LA FORME ?UNE STRUCTURE HOMOGENE A PARTIR DE SON CHAMP GRAVIMETRIQUE *
Author(s) -
LA PORTE M.
Publication year - 1963
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1963.tb02038.x
Subject(s) - computation , density contrast , geology , homogeneous , telmatology , limit (mathematics) , gemology , gravitational field , continuation , grid , geometry , mineralogy , physics , mathematical analysis , mathematics , engineering geology , statistical physics , computer science , geodesy , algorithm , classical mechanics , tectonics , seismology , astronomy , volcanism , programming language
A bstract A given gravity field is considered; it is assumed to be due to a homogeneous structure. The method of computation presented here makes it possible to determine one of the limits of such a structure (upper or lower), provided the other limit and the density contrast of the structure are known. Among the various applications of this method, location of the upper limit of buried palaeo‐reliefs can be mentioned. The calculation is designed for electronic computers, and uses one of the properties of the downward continuation of the gravity field. The process is iterative and takes place at the corners of a regular grid. Modern computers can handle several thousand points at a time.