Feature dataset GeologicMap, part of Geologic Map of Northeasternmost Tennessee, and Adjacent Parts of Virginia and North Carolina

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...

Tags: Abingdon, Alluvium, Andesite, Argillite, Arkose, All tags... Austinville, Baldwin Gap, Blue Ridge, Bluff City, Bristol, Cambrian, Carbonate rock, Carter, Cenozoic, Chert, Conglomerate, Conococheague Limestone, Damascus, Doe, Dolostone, Economic Geology, Elbrook Dolomite, Elizabethton, Elk Mills, Elk Park, Erwin, Erwin Formation, Flaser gneiss, Gneiss, Granite, Granodiorite, Gravel, Grayson, Graywacke, Greenstone, Hampton, Hampton Formation, Holston Valley, Honaker Dolomite, Iron Mountain Gap, Iron Mountains, Jonesboro Limestone, Keenburg, Konnarock, Latite, Laurel Bloomery, Lenoir Limestone, Limestone, Lucy Creek, Lynn Mountain, Migmatite, Mill Creek, Mount Rogers volcanic group, Mountain City, Mylonite, Nolichucky Shale, North Carolina, Ordovician, Paleozoic, Phyllite, Phyllonite, Precambrian, Quartz monzonite, Quartzite, Quaternary, Rhyolite, Rome Formation, Sandstone, Schist, Shady Dolomite, Shady Valley, Shale, Sherwood, Siltstone, Slate, South Holston Lake, Stone Mountain, Stratigraphy, Structural Geology, Talus, Tennessee, Tertiary, Tuff, USGS Science Data Catalog (SDC), Unicoi Formation, Valley Forge, Virginia, Watauga, White Rocks Mountain, Zionville, iron, manganese, metamorphic rocks, metamorphism (geological), plutonic rocks, sedimentary rocks, unconsolidated deposits, volcanic rocks, zinc, Fewer tags

Geology of the Grandfather Mountain Window and Vicinity, North Carolina and Tennessee

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...

Tags: Alluvial fan, Alluvium, Amphibolite, Arkose, Ashe, All tags... Avery, Basalt, Beech Granite, Blowing Rock Gneiss, Brown Mountain Granite, Burke, Caldwell, Cambrian, Carter, Chilhowee Group, Cranberry Gneiss, Diabase, Dolomite, Dolostone, Erwin Formation, Gabbro, Gneiss, Grandfather Mountain Formation, Granite, Granodiorite, Gravel, Greenschist, Hampton Formation, Johnson, Limestone, Linville Metadiabase, McDowell, Migmatite, Mineral Resources, Mitchell, Mudstone, Mylonite, North America, North Carolina, Paleozoic, Phyllonite, Proterozoic, Quartz monzonite, Quartzite, Quaternary, Rome Formation, Sandstone, Schist, Shady Dolomite, Shale, Siltstone, Structural Geology, Tennessee, Triassic, Tuff, USGS Science Data Catalog (SDC), Ultramafic intrusive rock, Unicoi Formation, United States, Volcanic ash, Watauga, Wilkes, Wilson Creek Gneiss, bedrock geologic units, building stone resources, copper, core analysis, critical minerals, earth sciences, earth structure, field sampling, folding (geologic), foliation (geologic), fracture (geologic), geologic contacts, geologic history, geologic maps, geologic structure, geology, geoscientificInformation, geospatial datasets, igneous rocks, iron, lead, lineation (geologic), lithostratigraphy, manganese, metallic mineral resources, metamorphic rocks, metamorphism (geological), microscopy, mineral resources, mineralogy, nonmetallic mineral resources, petrography, petrology, plutonic rocks, sedimentary rocks, stratigraphy, structural geology, titanium, unconsolidated deposits, uranium, volcanic rocks, zinc, Fewer tags