TY - RPRT TI - Delineation of selected lithologic units using airborne electromagnetic data near Cedar Rapids, Iowa AU - Joshua F. Valder AU - Adel E. Haj AU - Emilia L. Bristow AU - Kristen J. Valseth PY - 2018 DO - 10.3133/sim3423 UR - https://pubs.usgs.gov/publication/sim3423 ID - sim3423 ER -