01454nam 2200397Ia 450 991070109960332120110922085743.0(CKB)5470000002414036(OCoLC)754104992(EXLCZ)99547000000241403620110922d1995 fa 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierDigital grid of isostatic residual gravity of North America[electronic resource] a digital database /by R.W. Simpson and R.C. Jachens[Menlo Park, CA] :U.S. Dept. of the Interior, U.S. Geological Survey,1995.1 online resource (8 pages) color mapOpen-file report ;95-238Title from title screen (viewed on Sept. 22, 2011).Includes bibliographical references (page 4).Digital grid of isostatic residual gravity of North America Gravity anomaliesNorth AmericaDatabasesGravitational fieldsDatabasesGravity anomaliesGravitational fieldsSimpson Robert W63851Jachens Robert C1412555Geological Survey (U.S.)GPOGPOBOOK9910701099603321Digital grid of isostatic residual gravity of North America3506478UNINA