TY - RPRT TI - Geochemical characterization and dating of R tephra, a post-glacial marker bed in Mount Rainier National Park, Washington, U.S.A. AU - Mary Samolczyk AU - James W. Vallance AU - Joel Cubley AU - Gerald Osborn AU - Douglas H. Clark PY - 2016 DO - 10.1139/cjes-2015-0115 UR - https://pubs.usgs.gov/publication/70182741 ID - 70182741 ER -