Surface electrical tomography for taliks mapping (Taimyr Peninsulа)
About authors
- 1 — chief of processing department Ltd «GeophysPoisk»
- 2 — leading geophysicist Ltd «GeophysPoisk»
- 3 — geophysicist Ltd «GeophysPoisk»
- 4 — Ph.D. chief geophysicist Ltd «GeophysPoisk»
- 5 — student Saint Petersburg State University
Abstract
The technique and results of electrical explorations using electrical tomography procedure in permafrost on the Taimyr Peninsula are presented. The zones of permafrost, «sluggish» frozen zones and thawed soils (talik) are revealed and identified based on the values of resistivity. The authors suggest the method of interpretation with the help of the electrical resistivity spatial gradient for the identification of sediments in the cross-section. It was found that the areas with high-gradient of resistivity correspond to the frozen loam, and the areas of low gradient coincide with the sand layers in the permafrost.
Область исследования:
(Archived) Application of the modern electric exploratory technologies in prospecting of mineral deposits
Keywords:
engineering geophysics
permafrost
thawed soils
method of electrical tomo-graphy
the spatial gradient
References
- Permafrost study of the USSR. European territory of the USSR / Editor E.D. Ershov. Moscow, 1980. 357 р.
- Fedukin I.V., Frolov A.D. The parameters of electromagnetic wave propagation in frozen soil // Geophysical investigations of permafrost. 2000. Iss 1. P. 95- 111.
- Frolov A.D. Influence of phase composition on the electrical and mechanical properties of ice from solutions / Geophysical investigations of permafrost. 2000. Iss.3. P. 47-51.
- Frolov A.D. Electric and Elastic Properties of Frozen Earth Materials. Pushchino, 1998. 546 p.
- Dahlin T. 2D resistivity surveying for environmental and engineering applications // First Break. 1996. 14. P. 275- 284.
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