The magnetic mineral grains that carry natural remanent magnetization (NRM) in rocks can undergo changes in volume, chemical composition, or both. Because domain structure is a function of particle size, composition, and ...
Recent laboratory experiments by Halgedahl and Ye (1999) show that domain widths in pyrrhotite change very little, or not at all, as a grain is mechanically thinned along one or two directions. In their experiments, particles ...