TY - RPRT TI - Machine learning predictions of mean ages of shallow well samples in the Great Lakes Basin, USA AU - Christopher Green AU - Katherine Marie Ransom AU - Bernard T. Nolan AU - Lixia Liao AU - Thomas Harter PY - 2021 DO - 10.1016/j.jhydrol.2021.126908 UR - https://pubs.usgs.gov/publication/70224307 ID - 70224307 ER -