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Photomicrographs from the Ironwood Iron-Formation, Gogebic Iron Range, Wisconsin, USA

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2020-08-21T00:00:00Z
This dataset comprises photomicrographs from drill core and outcrop samples from the Ironwood Iron-Formation in the Gogebic Iron Range, Wisconsin, USA.

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