Surveys in Geophysics

, Volume 16, Issue 1, pp 107–120 | Cite as

Electrochemical modelling of self-potential anomalies

  • J. Stoll
  • J. Bigalke
  • E. W. Grabner
Article

Abstract

An electrochemical model is proposed, which considers the redox conditions and the electrode kinetics at the mineral surface. Advanced modelling of self-potential (SP) anomalies over ore deposits takes into account the course of the redox potential distribution with depth and the oxidation-reduction processes acting at the mineral-electrolyte interface. The application of this model to a SP anomaly in the vicinity of the German Continental Deep Drilling Program (KTB) can explain the surface and borehole data and gives an estimation of the prevailing thermodynamical conditions in the ground.

Exclusively, this paper deals with SP anomalies, which are associated with high conductive graphitic layers. It can be concluded that SP-anomalies give an important hint to electronical conducting structures in the earth's crust.

Key words

self-potential redox potential geobattery electrode kinetics graphite 

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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • J. Stoll
    • 1
  • J. Bigalke
    • 2
  • E. W. Grabner
    • 2
  1. 1.Institut für Meteorologie und GeophysikFrankfurt am MainGermany
  2. 2.Institut für Physikalische und Theoretische ChemieFrankfurt am MainGermany

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