TY - BOOK AU - Varnes, David J. AU - Radbruch-Hall, Dorothy H., AU - Savage, William Z. CN - QE75 CN - QE606 CN - QE75 CY - Washington : DA - 1989. ID - 226897 KW - Rifts (Geology) KW - Geology, Structural PB - U.S. G.P.O., PP - Washington : PY - 1989. T1 - Topographic and structural conditions in areas of gravitational spreading of ridges in the western United States :a study relating gravitational spreading of ridges to local topography and geologic structure / TI - Topographic and structural conditions in areas of gravitational spreading of ridges in the western United States :a study relating gravitational spreading of ridges to local topography and geologic structure / VL - 1496 ER -