Superstatistical view of stress-induced electric current fluctuations in rocks

Alexis Cartwright-Taylor, Filippos Vallianatos*, Peter Sammonds

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The concepts of non-extensive statistical physics, which have recently been applied in the study of complex systems, have been used here to analyse stress-induced electric current data in triaxially deformed Carrara marble samples. The fluctuations of electric current appear to follow a q-Gaussian distribution, with the PDF exhibiting 'fat tails'. The application of super-statistical techniques to these electric current fluctuations shows to good approximation that they can be described by local Gaussian processes with fluctuating variance.

Original languageEnglish
Pages (from-to)368-377
Number of pages10
JournalPhysica a-Statistical mechanics and its applications
Volume414
DOIs
Publication statusPublished - 15 Nov 2014

Keywords

  • Earth's complex systems
  • q-statistics
  • Rocks
  • Superstatistics

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