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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...
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
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
The 1:100,000-scale geologic map database of the South Boston 30' × 60' quadrangle, Virginia and North Carolina, provides geologic information for the Piedmont along the I-85 and U.S. Route 58 corridors and in the Roanoke River watershed, which includes the John H. Kerr Reservoir and Lake Gaston. The Raleigh terrane (located on the eastern side of the map) contains Neoproterozoic to early Paleozoic(?) polydeformed, amphibolite-facies gneisses and schists. The Carolina slate belt of the Carolina terrane (located in the central part of the map) contains Neoproterozoic metavolcanic and metasedimentary rocks at greenschist facies. Although locally complicated, the slate-belt structure mapped across the South Boston...
Tags: 30 x 60 minute,
Aaron Formation,
Aarons Creek,
Alkaline basalt,
Allen Creek, All tags...
Alluvium,
Amphibolite,
Argillite,
Armistead Branch,
Ashcake Creek,
Augen gneiss,
Averett,
Bagleys Mills,
Banister Lake,
Banister River,
Barnes Junction,
Basalt,
Baskerville,
Bears Element Creek,
Beaver Pond,
Beaver Pond Creek,
Beech Creek,
Bethel Hill,
Big Hounds Creek,
Big Juniper Creek,
Biotite gneiss,
Birch Creek,
Bishops Corner,
Black Walnut Creek,
Blackridge,
Blackstone Creek,
Blanes Millpond,
Bluestone Creek,
Bluestone Otter Creek,
Bluewing Creek,
Bowes Branch,
Boydton,
Bracey,
Brodnax,
Brunswick County,
Buckham Creek,
Buckhorn Creek,
Buckskin Creek,
Buffalo Creek,
Buffalo Junction,
Buffalo Springs,
Buggs Island,
Burton Branch,
Butcher Creek,
Cambrian,
Cargills Creek,
Carolina slate belt,
Carolina terrane,
Castle Creek,
Castle Heights,
Cataclasite,
Catawba Creek,
Cedar Creek,
Cenozoic,
Charlotte County,
Chase City,
Christie,
Clarksville,
Clarkton,
Clays Mill,
Clover,
Clover Creek,
Cluster Springs,
Coleman Creek,
Colluvium,
Conglomerate,
Connor Lake,
Cotton Creek,
Couches Creek,
Country Line complex,
Cox Creek,
Crooked Creek,
Crupper Run,
Crystal Hill,
Cub Creek,
Cunningham complex,
Dacite,
Dan River,
Devils Branch,
Devonian,
Diabase,
Difficult Creek,
Diorite,
Dixon Millpond,
Dockery Creek,
Drakes Branch,
Dryburg,
Dudley,
Dundas,
Ellis Creek,
Esnon,
Evans Creek,
Farmers Branch,
Felsic gneiss,
Finchley,
Finnewood Creek,
Finneywood,
Flat Creek,
Flat Rock Creek,
Forksville,
Formosa,
Fort Mitchell,
Gabbro,
Gibson Creek,
Gilliams Branch,
Gneiss,
Goodell Creek,
Granite,
Granitic gneiss,
Granodiorite,
Granville County,
Grassy Creek,
Great Creek,
Greenschist,
Gregory Corner,
Hagood Creek,
Halifax,
Halifax County,
Harmony,
Hawtree Creek,
Hitesburg,
Holocene,
Horsepen Creek,
Horseshoe Lake,
Hughs Lake,
Hunting Creek,
Hyco Formation,
Hyco River,
Island Creek,
Island Creek Reservoir,
Jeffress,
Johnson Creek,
Jurassic,
Kenbridge,
Kerr Reservoir,
Kettle Creek,
Kettlesticks Creek,
Kits Creek,
La Crosse,
Lake Gaston,
Lake Gordon,
Langford Pond,
Lawsons Creek,
Layton Creek,
Lennig,
Little Genito Creek,
Little Horsepen Creek,
Little Johnson Creek,
Little Juniper Creek,
Little Temble Creek,
Long Branch,
Lunenburg,
Lunenburg County,
Lyle Creek,
Marengo,
Mason Creek,
Mayo,
Mayo Creek,
Mayo Reservoir,
Mecklenburg County,
Mesozoic,
Metabasalt,
Metamorphic rock,
Metamorphic suite of South Hill,
Metasedimentary rock,
Metavolcanic rock,
Middle Meherrin River,
Mikes Creek,
Miles Creek,
Mill Branch,
Milton terrane,
Mines Creek,
Miocene,
Miry Creek,
Mississippian,
Mitchell Creek,
Monzodiorite,
Monzonite,
Moody Creek,
Mossingford,
Mount Laurel,
Mountain Creek,
Mylonite,
Nathalie,
Nelson,
Neogene,
Neoproterozoic,
North Carolina,
North Meherrin River,
North View,
Nutbush Creek,
Nutbush Creek mylonite zone,
Omega,
Ontario,
Ordovician,
Orthogneiss,
Otter Creek,
Paleozoic,
Palmer Crossroads,
Palmer Springs,
Panhandle Creek,
Parham Creek,
Pennsylvanian,
Permian,
Person County,
Peter Creek,
Philbeck Crossroads,
Phyllonite,
Piney Creek,
Piney Grove,
Plantersville,
Pleistocene,
Pliocene,
Poplar Creek,
Public Fork,
Quartz diorite,
Quartz monzonite,
Quartzite,
Quaternary,
Rabat,
Raleigh terrane,
Randolph,
Ready Creek,
Red Bank,
Red Oak,
Redlawn,
Reedy Creek,
Reeses Creek,
Rehoboth,
Reynolds Creek,
Rhyolite,
Riverdale,
Roanoke Creek,
Roanoke River,
Rocky Branch,
Sand,
Sandy Creek,
Saxe,
Schist,
Scotts Crossroad,
Scottsburg,
Seay Creek,
Shiny Rock,
Siddon,
Siltstone,
Silurian,
Sinai,
Skipwith,
Smith Creek,
South Boston,
South Hill,
South Meherrin River,
Spanish Grove,
Stokes Creek,
Stony Creek,
Taylors Creek,
Temble Creek,
Terrace,
The Ridge,
Tonalite,
Triassic,
Tungsten,
Twittys Creek,
USGS Science Data Catalog (SDC),
Union Level,
Vance County,
Vance pluton,
Victoria,
Virgilina,
Virgilina Formation,
Virginia,
Wallace Branch,
Warren County,
Wightman,
Winn Creek,
Wolf Trap Creek,
Wylliesburg,
abandoned mines and quarries,
bedrock geologic units,
copper,
earth sciences,
folding (geologic),
foliation (geologic),
fracture (geologic),
geologic contacts,
geologic maps,
geologic processes,
geologic structure,
geologic time periods,
geologic time scales,
geology,
geoscientificInformation,
geospatial datasets,
information product types,
inlandWaters,
lithology,
maps and atlases,
metamorphic rocks,
metamorphism (geological),
mining and quarrying,
place,
sedimentary rocks,
sedimentation,
society,
stratum,
structural geology,
structure,
surficial geologic units,
unconsolidated deposits,
utilitiesCommunication, Fewer tags
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