The spatial distribution of ESR signals in fault gouge revealed by Abrading technique

The spatial distribution of ESR signal intensity and equivalent dose (DE) has been predicted within the quartz grains from fault gouge by the localized lattice deformation and frictional heating theory (Lee and Schwarcz, 1994). The abrading technique was applied to a fault gouge sample in order to see the distribution as the technique removes the surface semi-quantitatively. Both intensities of E′1 and Al centers become larger after abrasion, being consistent with the theory, but not all the DES.