Magnetic Transitions Observed in Sulfide Minerals at Elevated Pressures and Their Geophysical Significance
- 26 January 1973
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 179 (4071) , 375-377
- https://doi.org/10.1126/science.179.4071.375
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.Keywords
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