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Abstract <p>The comprehensive comparative lithological and geochemical characteristics of the Quaternary (Middle Pleistocene-Holocene) formations of the Moscow syneclise within the Chashnikovo Depression are presented. Based on the results of X-ray fluorescence analysis, the normative mineral composition is calculated using the MINLITH program. Data on the contents of major petrogenic oxides and the normative mineralogy for deposits of glacial, fluvioglacial, lacustrine, fluvial, and eolian-deluvial genesis are analyzed using principal component analysis. As a result of statistical processing, three groups characterized by their common mineral composition and geochemical features are identified. It is suggested that these groups are a temporary genetic series of deposits, where the material of more ancient deposits served as a source for the formation of the subsequent ones. The issue of calculating the CIA petrochemical index as applied to these deposits is discussed.</p>

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The Mineralogical-Geochemical Characteristics of the Middle Pleistocene–Holocene Deposits of the Moscow Syneclise and the Conditions of Their Formation

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • R. R. Gabdullin,
  • S. I. Merenkova,
  • A. Yu. Puzik,
  • K. V. Syromyatnikov,
  • K. P. Kazymov,
  • N. V. Badulina,
  • I. V. Badyanova,
  • A. V. Ivanov,
  • I. R. Migranov,
  • K. P. Serikov,
  • L. A. Semenenko

摘要

Abstract

The comprehensive comparative lithological and geochemical characteristics of the Quaternary (Middle Pleistocene-Holocene) formations of the Moscow syneclise within the Chashnikovo Depression are presented. Based on the results of X-ray fluorescence analysis, the normative mineral composition is calculated using the MINLITH program. Data on the contents of major petrogenic oxides and the normative mineralogy for deposits of glacial, fluvioglacial, lacustrine, fluvial, and eolian-deluvial genesis are analyzed using principal component analysis. As a result of statistical processing, three groups characterized by their common mineral composition and geochemical features are identified. It is suggested that these groups are a temporary genetic series of deposits, where the material of more ancient deposits served as a source for the formation of the subsequent ones. The issue of calculating the CIA petrochemical index as applied to these deposits is discussed.