Bitumens as a Cause of the Occurrence of the Low Electrical Resistivity Zones in the Basement Rocks of the West Siberian Plate

A. O. Khotylev, E. V. Kozlova, V. S. Belokhin, A. A. Maiorov, T. G. Isakova, N. V. Pronina, G. A. Kalmykov, O. V. Khotylev

Research output: Contribution to journalArticlepeer-review

Abstract

Abstract: This work reports on the results of the studies of the material composition and physical properties of the basement rocks of the West Siberian Plate. It has been shown that the rocks contain bitumens of anthraxolite and kerite groups. We assume that the bitumens create the Late Paleozoic paleodeposit, transformed under the conditions of apocatagenesis. Impregnation with highly transformed organic matter leads to a significant decrease in electrical resistivity to values of 1–30 ohm m, which must be taken into consideration when interpreting the low-resistivity zones on the basis of log data.

Original languageEnglish
Pages (from-to)383-397
Number of pages15
JournalMoscow University Geology Bulletin
Volume76
Issue number4
DOIs
Publication statusPublished - Jul 2021

Keywords

  • bitumen
  • electrical resistivity
  • low resistance collectors
  • pre-Jurassic basement
  • Rock-Eval pyrolysis
  • Western Siberia

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