Structure of the Earth’s Crust Based on the Gravity Data of the GOCE Satellite Mission and Spatial Position of Polymetallic Deposits in the Frame of the Siberian and East European Platforms

• Published in: Izvestiya. Atmospheric and oceanic physics Vol. 59; no. 9; pp. 1028 - 1044
• Main Authors: Galyamov, A. L., Volkov, A. V., Lobanov, K. V., Murashov, K. Yu
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.12.2023; Springer Nature B.V
• Subjects: Accretion; Climatology; Continental margins; Continental shelves; Continental slope; Deposits; Earth; Earth and Environmental Science; Earth crust; Earth Sciences; Geophysics/Geodesy; Gravity data; Island arcs; Lead; Metallogenesis; Mineralization; Ores; Platforms; Platforms (geology); Pyrite; Satellites; Sediment deposits; Silver; Stratification; Subduction; Sulphides; Troughs; Use of Space Information about the Earth Geophysical and Geological Research from Space; Zinc; Zinc ores; Siberian Platform; ore; lithosphere; MVT; lead; SEDEX; copper; deposit; silver; earth’s crust; East European Platform; zinc; VMS
• ISSN: 0001-4338; 1555-628X
• DOI: 10.1134/S0001433823090074

Results of modern studies of the earth’s crust based on the gravitational data of the GOCE satellite have been used for the first time in a comparative metallogenic analysis of the geodynamic settings of the formation of polymetallic deposits in the folded frame of the Siberian and East European platforms. It is shown that deposits of the sedimentary exhalative deposits (SEDEX) type are more often located in the earth’s crust with the dominating development of the lower “basaltic” layer. Pyrite copper and lead–zinc volcanogenic massive sulfide (VMS) deposits, as well as some manifestations of the SEDEX type, occur in supra-subduction island-arc and accretionary settings in the crust with the dominating development of the middle “granitic” layer. Pb-Zn ores of the Mississippi Valley type (MVT) are localized in deep pericratonic sedimentary oil and gas basins on the shelf and continental slope, with no spatial relationship to the stratification of the earth’s crust. The Ag polymetallic mineralization of Taimyr and the Western Verkhoyansk region are confined to deep pericratonic rift troughs on the passive continental margin. They have a similar ore-bearing environment and can be combined into a single silver polymetallic Taimyr–Western Verkhoyansk belt. The results confirm the prospects of Pb-Zn deposits in Central and Eastern Taimyr and also in the Saurey ore region (Polar Urals), indicating the need for their further research.