Bacterial Filaments

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

	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 (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 (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 (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.
	EDS spectrum of environment around the filaments. Shows the presence of dolomite. Samples are Au-Pd coated. Analysis by Spilde, Northup, and Boston.
	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 (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 (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 (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 (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 (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 (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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