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Language: en
Pages: 20
Pages: 20
Type: BOOK - Published: 1975 - Publisher:
The Supai Formation of the Grand Canyon region is raised in rank to Supai Group and divided into four formations that range in age from early Pennsylvanian to e
Language: en
Pages: 92
Pages: 92
Type: BOOK - Published: 1976 - Publisher:
Language: en
Pages: 2834
Pages: 2834
Type: BOOK - Published: 1975 - Publisher:
Language: en
Pages: 88
Pages: 88
Type: BOOK - Published: 1986 - Publisher:
Nine short papers present changes in stratigraphic nomenclature in California, Nevada, Arizona, Kentucky, Tennessee, Ohio, Georgia, South Carolina, and Massachu
Language: en
Pages: 196
Pages: 196
Type: BOOK - Published: 1984 - Publisher: