Figure 5From: Changes in illite crystallinity within an ancient tectonic boundary thrust caused by thermal, mechanical, and hydrothermal effects: an example from the Nobeoka Thrust, southwest JapanThe relationship between IC value and peak intensity. (a) Grinding experiments using a borehole core sample and a planetary ball mill. Color bar shows grinding time (min). (b) Borehole core samples from the hanging wall. Color bar shows the depth of the sample (mbgs).Back to article page