TY - RPRT TI - A new isostatic residual gravity map of the conterminous United States AU - Robert W. Simpson AU - Robert C. Jachens AU - Richard W. Saltus AU - Richard J. Blakely PY - 1985 DO - 10.1190/1.1892727 UR - https://pubs.usgs.gov/publication/70209850 ID - 70209850 ER -