U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by the Books and Open-File Reports Section, U.S. Geological Survey,
Southwick, D. L. (David Leroy), 1936-
Southwick, D. L. (David Leroy), 1936-
Morey, G. B.
Holst, Timothy B. Penokean orogeny in Minnesota and upper Michigan--a comparison of structural geology. 1991.
Contributions to Precambrian geology of Lake Superior region ; ch. C-D
U. S. Geological Survey bulletin ; 1904-C, D
[Washington] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1991.
Tectonic imbrication and foredeep development in the Penokean orogen, east-central Minnesota--an interpretation based on regional geophysics and the results of test-drilling
Tectonic imbrication and foredeep development in the Penokean orogen, east-central Minnesota--an interpretation based on regional geophysics and the results of test-drilling
Tectonic imbrication and foredeep development in the Penokean orogen, east-central Minnesota--an interpretation based on regional geophysics and the results of test-drilling
Contributions to Precambrian geology of Lake Superior region ;
U. S. Geological Survey bulletin ;
Penokean orogeny in Minnesota and upper Michigan--a comparison of structural geology. 1991.
Tectonic imbrication and foredeep development in the Penokean orogen, east-central Minnesota--an interpretation based on regional geophysics and the results of test-drilling
Southwick, D. L. (David Leroy), 1936-