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Geochemical reconnaissance of the Cortez-Buckhorn area, southern Cortez Mountains, Nevada / / by John D. Wells and James E. Elliott
| Geochemical reconnaissance of the Cortez-Buckhorn area, southern Cortez Mountains, Nevada / / by John D. Wells and James E. Elliott |
| Autore | Wells John David <1926-> |
| Pubbl/distr/stampa | [Washington, D.C.] : , : United States Department of the Interior, Geological Survey, , 1971 |
| Descrizione fisica | 1 online resource (iii, 18 pages, 3 pages of plates) : maps (some color) |
| Collana |
Geological Survey bulletin
Contributions to economic geology |
| Soggetto topico |
Geochemical prospecting - Nevada - Cortez Mountains
Mines and mineral resources - Nevada - Cortez Mountains Geochemical prospecting Mines and mineral resources |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Altri titoli varianti | Cortez-Buckhorn area, Nevada |
| Record Nr. | UNINA-9910707475703321 |
Wells John David <1926->
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| [Washington, D.C.] : , : United States Department of the Interior, Geological Survey, , 1971 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Geology of the Eldorado Springs quadrangle, Boulder and Jefferson counties, Colorado : petrography, stratigraphy, and structural geology of the Precambrian metamorphic and igneous rocks, Paleozoic and Mesozoic sedimentary rocks, and Cenozoic surficial deposits / / by John D. Wells
| Geology of the Eldorado Springs quadrangle, Boulder and Jefferson counties, Colorado : petrography, stratigraphy, and structural geology of the Precambrian metamorphic and igneous rocks, Paleozoic and Mesozoic sedimentary rocks, and Cenozoic surficial deposits / / by John D. Wells |
| Autore | Wells John David <1926-> |
| Pubbl/distr/stampa | [Washington, D.C.] : , : United States Department of the Interior, Geological Survey, , 1967 |
| Descrizione fisica | 1 online resource (v, 85 pages, 1 page of plates) : illustrations, color map |
| Collana |
Geological Survey bulletin
Contributions to general geology |
| Soggetto topico |
Geology - Colorado - Boulder County
Geology - Colorado - Jefferson County Geology |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Altri titoli varianti | Geology of the Eldorado Springs quadrangle, Boulder and Jefferson counties, Colorado |
| Record Nr. | UNINA-9910707056903321 |
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Wells John David <1926->
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| [Washington, D.C.] : , : United States Department of the Interior, Geological Survey, , 1967 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Petrography of radioactive tertiary igneous rocks, Front Range mineral belt, Colorado / / by J.D. Wells
| Petrography of radioactive tertiary igneous rocks, Front Range mineral belt, Colorado / / by J.D. Wells |
| Autore | Wells John David <1926-> |
| Pubbl/distr/stampa | [Washington, D.C.] : , : United States Department of the Interior, Geological Survey, , 1960 |
| Descrizione fisica | 1 online resource (iv, 223-272 pages, 1 page of plate) : illustrations, map, charts |
| Collana |
Geological Survey bulletin
Geology and ore deposits of Clear Creek, Gilpin, and Larimer Counties, Colorado |
| Soggetto topico |
Igneous rocks - Colorado - Clear Creek County
Igneous rocks - Colorado - Gilpin County Petrology - Colorado - Clear Creek County Petrology - Colorado - Gilpin County Igneous rocks Petrology |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910704266203321 |
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Wells John David <1926->
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| [Washington, D.C.] : , : United States Department of the Interior, Geological Survey, , 1960 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Radioactivity reconnaissance of part of north-central Clear Creek county, Colorado / / by John D. Wells and Jack E. Harrison
| Radioactivity reconnaissance of part of north-central Clear Creek county, Colorado / / by John D. Wells and Jack E. Harrison |
| Autore | Wells John David <1926-> |
| Pubbl/distr/stampa | Washington, D.C. : , : United States Department of the Interior, Geological Survey, , 1954 |
| Descrizione fisica | 1 online resource (ii, 8 pages) : illustrations, maps |
| Collana | Geological Survey circular |
| Soggetto topico |
Geology - Colorado - Clear Creek County
Radioactive substances - Colorado - Clear Creek County Geology Radioactive substances |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910709957603321 |
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Wells John David <1926->
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| Washington, D.C. : , : United States Department of the Interior, Geological Survey, , 1954 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Stratigraphy and structure of the House Rock Valley area, Coconino County, Arizona / / by John D. Wells
| Stratigraphy and structure of the House Rock Valley area, Coconino County, Arizona / / by John D. Wells |
| Autore | Wells John David <1926-> |
| Pubbl/distr/stampa | Washington, D.C. : , : United States Department of the Interior, Geological Survey, , 1960 |
| Descrizione fisica | 1 online resource (iii, 117-158 pages, 2 pages of plates) : illustrations, maps |
| Collana |
Contributions to general geology
Geological Survey bulletin |
| Soggetto topico |
Petrology - Arizona - Coconino County
Petrology - Arizona - House Rock Valley Petrology |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910707364403321 |
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Wells John David <1926->
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| Washington, D.C. : , : United States Department of the Interior, Geological Survey, , 1960 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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