Magnetic transitions observed in sulfide minerals at elevated pressures and their geophysical significance

David J. Vaughan, John A. Tossell

Research output: Contribution to journalArticlepeer-review

Abstract

The magnetic behavior of iron in chalcopyrite (CuFeS2) and pyrrhotite (Fe7S8) in the pressure range from 1 atmosphere to 20 kilobars has been studied by Mössbauer spectroscopy. Both chalcopyrite and pyrrhotite exhibit transitions from magnetically ordered to disordered states over the range from 5 to 16 kilobars. Both transitions, particularly the loss of ferrimagnetism in pyrrhotite, have geophysical consequences.

Original languageEnglish
Pages (from-to)375-377
Number of pages3
JournalScience
Volume179
Issue number4071
DOIs
Publication statusPublished - 1973

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