PROBABILISTIC-DETERMINISTIC GRAVITY MODELS OF THE CENTRAL TYPE STRUCTURES IN THE CRUST AND UPPER MANTLE

A.M. Petrishchevsky

Аннотация


The author shows the possibilities of diagnostics and spatial parameterization of central type structures (SCT) by distributions of density contrast and singular points, modeled without aprioristic geologic-geophysical information. The author characterizes the intrusive-dome structures in the crust, formed during the introduction of intrusive bodies, and mantle SCT of plume nature, formed by extrusion of the asthenosphere under the bottom of the lithosphere in the zones of lithospheric plate subduction and in the regional stretching zones.   


Ключевые слова


gravity models; rheology; central type structures; plumes.

Литература


Petrishchevskii A.M. Gravitatsionnyi metod otsenki reologicheskikh svoistv zemnoi kory i verkhnei mantii (v konvergentnykh i plyumovykh strukturakh Severo-Vostochnoi Azii) (Gravitational method for assessing the rheological properties of the Earth’s crust and upper mantle (in convergent and plume structures of North-East Asia)). Moscow: Nauka Publ., 2013. 192 p. (In Russ.).

Petrishchevskii A.M., Isaev V.I. Veroyatnostno-deterministskie metody interpretatsii gravitatsionnykh anomalii: uchebnoe posobie (Probabilistic-deterministic methods of interpretation of gravitational anomalies). Tomsk: TPU, 2017. 99 p. (In Russ.).


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