TY - RPRT TI - Lithotectonic setting necessary for formation of a uranium-rich, solution-collapse breccia-pipe province, Grand Canyon region, Arizona AU - Karen J. Wenrich AU - Hoyt B. Sutphin PY - 1989 DO - 10.3133/ofr89173 UR - https://pubs.usgs.gov/publication/ofr89173 ID - ofr89173 ER -