Geologic sections of Quincy mine, T. 55 N., R. 34 W., Houghton County, Mich.
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| Autor Principal: | |
|---|---|
| Formato: | Mapa |
| Idioma: | inglés |
| Publicado: |
U. S. Geological Survey
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| Series: | Professional paper 144 |
| Tags: |
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