File:Brecciated Magnetite-quartz-jasper Meta-BIF, Atlantic City Iron Mine WY.jpg
Brecciated magnetite-quartz-jasper meta-BIF (banded iron formation) (7.3 cm across at its widest) from the Precambrian of Wyoming, USA.
Date
Source
Brecciated magnetite-quartz-jasper meta-BIF (Goldman Meadows Formation, Mesoarchean, 2.87 Ga; Atlantic City Iron Mine, southwestern side of South Pass, Wind River Range, west-central Wyoming, USA)
Author
James St. John
Stratigraphy: Goldman Meadows Formation, upper Mesoarchean, 2.87 Ga; metamorphism at 1.4 Ga, during the early Mesoproterozoic.
Locality: Atlantic City Iron Mine, northwestern side of Rt. 28, southwestern side of South Pass, Wind River Range, west-central Wyoming, USA.Licensing
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15026092788. It was reviewed on 15 September 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |