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The geology of an area of 660 square miles mostly in the northeastern corner of Tennessee and small adjacent areas in Virginia and North Carolina is the subject of this report. The region lies principally in the Unaka province, with extensions northwestward into the Appalachian Valley and southwestward into the Blue Ridge province. The report combines results of surveys made between 1941 and 1953 by the U. S. Geological Survey, the Tennessee Division of Geology, and the Tennessee Valley Authority, and is published in cooperation with the Tennessee Division of Geology. Northeasternmost Tennessee is a region of widespread mineralization and was formerly important for mineral production. Iron, manganese, and bauxite...
Top of Emmons cone showing inclusions of quartzite. See white patch near top center of picture (see specimen). T. 21 N., R. 102 W. Almond quadrangle. Sweetwater County, Wyoming. 1907.
Panorama with image 740 and 741. Knob (quartzite) due east of Buena Vista. From top of spur to east (K 25). Lexington quadrangle. Virginia. No date.
Ledge of quartzite forming front knob in hollow northeast of Buena Vista (K 23). Lexington quadrangle. Virginia. No date.
Aspen Mountain-Golden Wall quartzite, northeast end of Aspen Mountain T. 17 N., R. 104 W., part of Golden Wall beds. Maxon quadrangle, Wyoming. No date.
The Blue Ridge belt in northwestern North Carolina and northeastern Tennessee is composed chiefly of 1,000-million to 1,100-million-year-old metamorphic and plutonic rocks that have been thrust many miles northwestward across unmetamorphosed Cambrian(?) and Cambrian sedimentary rocks of the Unaka belt. The Blue Ridge thrust sheet is rooted on the southeast along the Brevard zone, a zone of strike-slip faulting along which metamorphic and plutonic rocks of the Inner Piedmont belt are juxtaposed with rocks of the Blue Ridge. Near the southeastern edge of the Blue Ridge belt, the Blue Ridge thrust sheet is breached by erosion, and the rocks beneath are exposed in the Grandfather Mountain window, which is 45 miles long...
Quartzite at Sheep Monument, T. 16 N., R. 104 W., taken from northeast. Dip 20 degrees east, 60 degrees south. Maxon quadrangle, Wyoming. No date.
Aspen Mountain-Golden Wall quartzite ledges on northeast end of Aspen Mountain as seen from east. T. 17 N., R. 104 W. Maxon quadrangle, Wyoming. No date.
Conglomerate at base of Aspen-Golden Wall quartzite beds, T. 17 N., R. 104 W., view taken at sheep herders' monument. Note the irregularity of the beds probably due to slumping. Maxon quadrangle, Wyoming. No date.
Sheep herders' monument near south end of Aspen Mountain showing quartzite sandstones. T. 17 N., R. 104 W. Maxon quadrangle, Wyoming. No date.
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