TY - RPRT TI - Digital recovery, modification, and analysis of Tetra Tech seismic horizon mapping, National Petroleum Reserve Alaska (NPRA), northern Alaska AU - R. W. Saltus AU - Christopher S. Kulander AU - Christopher J. Potter PY - 2002 DO - 10.3133/ofr02111 UR - https://pubs.usgs.gov/publication/ofr02111 ID - ofr02111 ER -