On pressure demagnetization

G. W. Pearce, J. A. Karson

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The effects of pressure on the ramanent magnetization of rocks may well be important in regions of low geothermal gradients, for example subduction zones, or at localities where a magnetization is associated with a meteorite impact. In a series of experiments undertaken to determine the effects of hydrostatic pressure on the saturation magnetic remanent moment in a variety of materials, a ‘pressure demagnetization’ has been observed. From these experiments we conclude that there is a relationship between coercivity and the extent of this pressure demagnetization for rocks bearing magnetite and titanomagnetites.

Original languageEnglish (US)
Pages (from-to)725-728
Number of pages4
JournalGeophysical Research Letters
Issue number7
StatePublished - Jul 1981
Externally publishedYes

ASJC Scopus subject areas

  • Geophysics
  • General Earth and Planetary Sciences


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