Clicking on the images will display larger versions of the photos.
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SEM image (5500x) of small "iron nodules" (EDS analysis) on calcium carbonate.
Some evidence of corrosion pits. Sample (SW3) is of salmon-colored chunks
of rock from the corrosion residue in the FN survey near FNH2 on the way to
Big Sky camp. Photo by Spilde, Northup, and Boston.
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Closeup SEM image (16,000x) of the "iron nodules" in the preceding image.
The size and collapsed look suggest that these could be bacteria.
Photo by Spilde, Northup, and Boston. |
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SEM image (1000x) overview of the preceding two images. Photo by Spilde,
Northup, and Boston. |
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SEM closeup image (27,000x) of the iron oxide nodules located in the pit in
the preceding image from a rock sample of the red-colored rock wall in an
area of heavy corrosion residue in the EA survey.
Photo by Spilde, Northup, and Boston.
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SEM image of close-up of putative iron oxide formations. EDS analysis
noted the presence of Fe, O, Ca, and Al. Photo by Spilde, Northup, and Boston.
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