Pits

Clicking on the images will display larger versions of the photos.

SEM image SEM image of pink corrosion residue (sample SW9) from the FN Survey (FN18) in the Southwestern Branch on the way to Big Sky camp. Image shows a pitted area with some iron specks on top. Photo by Spilde, Northup, and Boston.
SEM image SEM image of crystals in the red wall rock near corrosion residues in EA Survey. Some pits apparent. Photo by Spilde, Northup, and Boston.
SEM image SEM image (95x) of red wall rock near corrosion residues in the EA Survey. Notice corrosion features. Photo by Spilde, Northup, and Boston.
SEM image SEM image (270x) of striations seen in previous image of red wall rock near corrosion residues in the EA Survey. Photo by Spilde, Northup, and Boston.
SEM image SEM image of closer view of pits seen in previous image of red wall rock near corrosion residues in the EA Survey. Photo by Spilde, Northup, and Boston.
SEM image SEM image (120x) of corrosion pit in the outer wall rock sample from EY56 site in the Western Borehole. Subsequent images show closer up images of the mesh of filaments present in the pit. Photo by Spilde, Northup, and Boston.
SEM image SEM image (450x) of corrosion pit in the outer wall rock sample from EY56 site in the Western Borehole. Filaments are just barely visible. Photo by Spilde, Northup, and Boston.
SEM image SEM image (2000x) of filament mesh in corrosion pit in the outer wall rock sample from EY56 site in the Western Borehole. Photo by Spilde, Northup, and Boston.
SEM image SEM image (7000x) of filaments in the corrosion pit in the outer wall rock sample from EY56 site in the Western Borehole. Photo by Spilde, Northup, and Boston.
SEM image SEM image (220x) of second corrosion pit in the outer wall rock sample from EY56 site in the Western Borehole. Photo by Spilde, Northup, and Boston.
SEM image SEM image (850x) of second corrosion pit in the outer wall rock sample from EY56 site in the Western Borehole. Mesh of filaments is visible. Photo by Spilde, Northup, and Boston.
SEM image SEM image (3300x) of second corrosion pit in the outer wall rock sample from EY56 site in the Western Borehole. Mesh of filaments is visible. Photo by Spilde, Northup, and Boston.
SEM image SEM image (14,000x) closeup of filaments in second corrosion pit in the outer wall rock sample from EY56 site in the Western Borehole. Filaments are approximately 0.2 microns in diameter. Photo by Spilde, Northup, and Boston.
SEM image SEM image (120x) of third corrosion pit in the outer wall rock sample from EY56 site in the Western Borehole. Photo by Spilde, Northup, and Boston.
SEM image SEM image (550x) of third corrosion pit with mesh of filaments in the outer wall rock sample from EY56 site in the Western Borehole. Photo by Spilde, Northup, and Boston.
SEM image SEM image (5000x) closeup of filaments in third corrosion pit in the outer wall rock sample from EY56 site in the Western Borehole. Photo by Spilde, Northup, and Boston.

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