File:USGS Professional Paper 144, Plate 2.jpg
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Captions
Captions
General geologic map and sections of the Keweenaw and associated rocks in the Lake Superior copper district
Summary
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| Description |
English: General geologic map and sections of the Keweenaw and associated rocks in the Lake Superior copper district.
This map was published in 1929 and appears as Plate 2 in USGS Professional Paper 144 titled "The copper deposits of Michigan". doi:10.3133/pp144 |
| Date | |
| Source | https://pubs.er.usgs.gov/publication/pp144 |
| Author | B. S. Butler and W. S. Burbank |
Licensing
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:47, 19 May 2023 | | 6,748 × 7,128 (5.43 MB) | Scottk (talk | contribs) | Uploaded a work by B. S. Butler and W. S. Burbank from https://pubs.er.usgs.gov/publication/pp144 with UploadWizard |
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