Геофизические исследования внутреннего строения гляциально-мерзлотных каменных образований Центрального Алтая

Translated title of the contribution: Geophysical studies of the internal structure of glacial-permafrost stone formations of the Central Altai

G. S. Dyakova, A. A. Goreyavcheva, O. V. Ostanin, V. V. Olenchenko, R. Yu Biryukov

Research output: Contribution to journalArticlepeer-review

Abstract

Several complexes of glacial-permafrost stone formations have been studied in the Central Altai using geophysical methods. The features of their internal structure together with characteristic differences between them depending on the dynamic activity, altitude and geomorphological characteristics were determined. Integration of the methods of the electrical resistivity tomography and the GPR-sounding made it possible to distinguish roofs on all the studied formations and to estimate thicknesses of the stone-ice cores. Studying of eight formations with different degrees of activity and located at different altitudes did show that the thicknesses of the stone-ice cores increase with height: from 8–10 m in the mid-mountain zone up to 18-20 m in the highlands. The values of the specific resistance of cores inside the glacial-stone formations are directly proportional to altitudes of the objects (the correlation coefficient is 0.7) that give an indication of increasing in the amount of ice in them with height. The depth of occurrence of the roof of the stone-ice material in the formations is more dependent on the exposure of the slope on which the object is located, and changes from 1–2 m on slopes of the Northern exposure up to 4–6 m on slopes of the Southern and Western exposures.

Translated title of the contributionGeophysical studies of the internal structure of glacial-permafrost stone formations of the Central Altai
Original languageRussian
Pages (from-to)109-120
Number of pages12
JournalLed i Sneg
Volume60
Issue number1
DOIs
Publication statusPublished - 1 Jan 2020

Keywords

  • Altai
  • electrical resistivity tomography
  • glacial-permafrost rock formations
  • GPR-sounding
  • permafrost
  • rock glacier
  • ROCK GLACIERS
  • ICE CONTENT
  • DYNAMICS

State classification of scientific and technological information

  • 38.47 Geomorphology

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