TY - RPRT TI - Evidence against pervasively deformed bed material beneath rapidly moving lobes of the southern Laurentide Ice Sheet AU - L. Clayton AU - D.M. Mickelson AU - J.W. Attig PY - 1989 DO - 10.1016/0037-0738(89)90115-2 UR - https://pubs.usgs.gov/publication/70015433 ID - 70015433 ER -