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Scanning electron microscope (SEM) images 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
These data comprise various SEM images from drill cores and outcrops in the Ironwood Iron-Formation.

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