TY - RPRT TI - Using drill cutting separates to estimate the strength of narrow shear zones at SAFOD AU - C. Morrow AU - J. Solum AU - S. Tembe AU - D. Lockner AU - T.-F. Wong PY - 2007 DO - 10.1029/2007gl029665 UR - https://pubs.usgs.gov/publication/70030123 ID - 70030123 ER -