Issues of the journals Геофизика 2010 y. issue 2

Gravity Tomography Revisited

(Petrishchevsky A.M. )

The principles and problems of gravity tomography are examined, the physical and mathematical bases and technology of construction of the quasy-tomographic density inhomogeneity models of the tectonosphere in a class of compact sources of variable density with common centre of gravity are discussed. The testing examples of this method in independent systems of the enter data and for gravity anomalies of the relatively different signs in three areas of Far East Russia are shown. The results of geological interpretation of 3D-models of the superficial density gradient distributions in a class of equivalent spherical sources in the crust and upper mantle of the Transbaikalia and Sikhote-Alin are analysed. With the help of an offered method structural features of the passive rifting in the Baikal Rift Zone, and thrusting nature of marginal terraines in the Sikhote-Alin are illustrated.......

  • 2010  № 2, pp. 71-80