TY - RPRT TI - Rhyolitic glass in Ordovician K-bentonites: A new stratigraphic tool: Comment and reply AU - Paul C. Lyons AU - John W. Delano AU - Steven J. Tice AU - Charles E. Mitchell AU - Daniel Goldman PY - 1994 DO - 10.1130/0091-7613(1994)022<1151:rgiokb>2.3.co;2 UR - https://pubs.usgs.gov/publication/70186952 ID - 70186952 ER -