VOLCANITES WITH THE ADAKITE CHARACTERISTICS FROM UPPER PLIOCENE CROSS SECTIONS OF TERSKO-CASPIAN FOREDEEP DEPRESSION

  • V.M. Gazeev Institute of geology of ore deposits, petrography, mineralogy and geochemistry RAS, Russia, 119017, Moscow, Staromonetny Lane, 35; Vladikavkaz Scientific Center of the Russian Academy of Sciences, Russia, 362027, RNO-Alania, Vladikavkaz, Markusa Str., 22;
  • A.G. Gurbanov Institute of geology of ore deposits, petrography, mineralogy and geochemistry RAS, Russia, 119017, Moscow, Staromonetny Lane, 35; Vladikavkaz Scientific Center of the Russian Academy of Sciences, Russia, 362027, RNO-Alania, Vladikavkaz, Markusa Str., 22;
  • Yu.V. Goltsman Institute of geology of ore deposits, petrography, mineralogy and geochemistry RAS, Russia, 119017, Moscow, Staromonetny Lane, 35
  • T.I. Oleiynikova Institute of geology of ore deposits, petrography, mineralogy and geochemistry RAS, Russia, 119017, Moscow, Staromonetny Lane, 35
  • A.B. Lexin Institute of geology of ore deposits, petrography, mineralogy and geochemistry RAS, Russia, 119017, Moscow, Staromonetny Lane, 35
  • A.Ya. Dokuchaev Institute of geology of ore deposits, petrography, mineralogy and geochemistry RAS, Russia, 119017, Moscow, Staromonetny Lane, 35
Keywords: Tersko-Caspian foredeep depression, adakite-like volcanic rocks, petrography, geochemistry, geodynamical reconstructions, potential ore content

Abstract

In the Osetian basin of Tersko-Caspian foredeep depression in a section of akchagil-apsheron sediments the terrane with a large number of redeposited volcanic rocks is bedding. The petrographical and geochemical investigation of these volcanic rocks was done. Results of XRF, ICP MS and isotope (Rb, Sr, Sm, Nd)) analyses were presented. It was shown, that volcanites are considerate adakite-like characteristics. The potential ore content of these rocks was done. We are suppose that in zones of secondary alteration (propylitization) within the volcanic apparatus, which served as a sources of the volcanic rocks removal, can occurs a gold-silver with bismuth mineralization.
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Published
2018-09-13
Issue
Vol 8 No 3 (2018): Geology and Geophysics of Russian South, 2018 No 3
Section
Articles