Fault structures and their geoelectric parameters in the epicentral zone of the 27 September 2003 Chuya earthquake (Gorny Altai) from resistivity data

N. N. Nevedrova, E. V. Deev, P. V. Ponomarev

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

This paper presents an integrated measurement technique based on DC methods (vertical electrical sounding, electrical resistivity tomography) which was used to identify faults and determine their geoelectric parameters in the western part of the Chuya basin. New information on the structure of the Chagan River valley located in the zone of the disastrous 27 September 2003 Chuya earthquake has been obtained from the results of these methods. Geoelectric cross-sections of the sedimentary sequence and the upper part of the basement were obtained from VES data, showing the block structure of the study area. Electrical resistivity tomography sections confirm the presence of a major fault between basement blocks of different heights and indicate the presence of faults bounding the valley on its right side and in the southwestern part.

Original languageEnglish
Pages (from-to)123-132
Number of pages10
JournalRussian Geology and Geophysics
Volume58
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017

Keywords

  • Chagan River valley
  • electrical resistivity tomography
  • geoelectric parameters of fault zones
  • vertical electrical soundings
  • DEEP-STRUCTURE

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