SOLVING INVERSE PROBLEMS OF GRAVIMETRY BY MATHEMATICAL STATISTICS METHODS
https://doi.org/10.21285/2541-9455-2018-41-4-67-78
Abstract
The purpose of this article is to study the possibilities of mathematical statistics methods under the quantitative interpretation of gravity anomalies. The study uses dispersion and regression methods of mathematical analysis for gravitation field transformation and inversion on example of the Bogdoulin granitoid massif (Mongolia) with the abnormally high content of rare and non-ferrous metals (Sn, Zn, W). As a result, quantitative characteristics of the massif thickness have been obtained as well as the data on the morphological features of its shape. The maximum thickness of granitoids is 12 km. The obtained estimates are confirmed by the results of solving the inverse problem of gravimetry by the method of model selection. Therefore, the application of methods of mathematical statistics for determining intrusive body morphology allows to obtain petrophysical models of geological objects coinciding with the results of quantitative interpretation performed with the use of the program of semi-automatic 3D-Markquardt-inversion of the gravitational field.
About the Authors
V. Kanaikin
Irkutsk National Research Technical University
Russian Federation
Russian Federation
Associate Professor of the Department of Applied Geology, Geophysics and Geoinformation Systems of the Institute of Subsoil Use
83 Lermontov St., Irkutsk 664074, Russian Federation
E. Turutanov
Institute of the Earth’s crust SB RAS
Russian Federation
Russian Federation
Dr. Sci. (Geology and Mineralogy), Head of the Laboratory of Complex Geophysics
tel.: 8 (3952) 428792
128 Lermontov St., Irkutsk 664033, Russian Federation
B. Buyantogtokh
Institute of Astronomy and Geophysics MAS
Mongolia
Mongolia
Postgraduate, Scientific Researcher
tel.: 8 (97611) 458024
42 J. Lhagaasurengiin, Ulaanbaator 13343, Mongolia
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Review
For citations:
Kanaikin V., Turutanov E., Buyantogtokh B. SOLVING INVERSE PROBLEMS OF GRAVIMETRY BY MATHEMATICAL STATISTICS METHODS. Earth sciences and subsoil use. 2018;41(4):67-78. (In Russ.) https://doi.org/10.21285/2541-9455-2018-41-4-67-78
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