TY - RPRT TI - Laboratory observations of fault strength in response to changes in normal stress AU - Brian D. Kilgore AU - Julian Lozos AU - Nicholas M. Beeler AU - David Oglesby PY - 2012 DO - 10.1115/1.4005883 UR - https://pubs.usgs.gov/publication/70042408 ID - 70042408 ER -