Database for the geologic map of the South Boston 30' x 60' Quadrangle, Virginia and North Carolina
The 1:100,000-scale geologic map of the South Boston 30' x 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 map area is generally a broad, complex anticlinorium of the Hyco Formation (here called the Chase City anticlinorium) and is flanked to the west and east by synclinoria, which are cored by the overlying Aaron and Virgilina Formations. The western flank of the Carolina terrane (located in the western-central part of the map) contains similar rocks at higher metamorphic grade. This terrane includes epidote-amphibolite-facies to amphibolite-facies gneisses of the Neoproterozoic Country Line complex, which extends north-northeastward across the map. The Milton terrane (located on the western side of the map) contains Ordovician amphibolite-facies metavolcanic and metasedimentary gneisses of the Cunningham complex. Crosscutting relations and fabrics in mafic to felsic plutonic rocks constrain the timing of Neoproterozoic to late Paleozoic deformations across the Piedmont. In the eastern part of the map, a 5- to 9-kilometer-wide band of tectonic elements that contains two late Paleozoic mylonite zones (Nutbush Creek and Lake Gordon) and syntectonic granite (Buggs Island pluton) separates the Raleigh and Carolina terranes. Amphibolite-facies, infrastructural metaigneous and metasedimentary rocks east of the Lake Gordon mylonite zone are generally assigned to the Raleigh terrane. In the western part of the map area, a 5- to 8-kilometer-wide band of late Paleozoic tectonic elements includes the Hyco and Clover shear zones, syntectonic granitic sheets, and amphibolite-facies gneisses along the western margin of the Carolina terrane at its boundary with the Milton terrane. This band of tectonic elements is also the locus for early Mesozoic extensional faults associated with the early Mesozoic Scottsburg, Randolph, and Roanoke Creek rift basins. The map shows fluvial terrace deposits of sand and gravel on hills and slopes near the Roanoke and Dan Rivers. The terrace deposits that are highest in altitude are the oldest. Saprolite regolith is spatially associated with geologic source units and is not shown separately on the map. Mineral resources in the area include gneiss and granite quarried for crushed stone, tungsten-bearing vein deposits of the Hamme district, and copper and gold deposits of the Virgilina district. Surface-water resources are abundant and include rivers, tributaries, the John H. Kerr Reservoir, and Lake Gaston. Groundwater flow is concentrated in saprolite regolith, along fractures in the crystalline bedrock, and along fractures and bedding-plane partings in the Mesozoic rift basins.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Ernest A Crider",
"@type": "vcard:Contact",
"hasEmail": "mailto:ecrider@usgs.gov"
}
|
| description | The 1:100,000-scale geologic map of the South Boston 30' x 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 map area is generally a broad, complex anticlinorium of the Hyco Formation (here called the Chase City anticlinorium) and is flanked to the west and east by synclinoria, which are cored by the overlying Aaron and Virgilina Formations. The western flank of the Carolina terrane (located in the western-central part of the map) contains similar rocks at higher metamorphic grade. This terrane includes epidote-amphibolite-facies to amphibolite-facies gneisses of the Neoproterozoic Country Line complex, which extends north-northeastward across the map. The Milton terrane (located on the western side of the map) contains Ordovician amphibolite-facies metavolcanic and metasedimentary gneisses of the Cunningham complex. Crosscutting relations and fabrics in mafic to felsic plutonic rocks constrain the timing of Neoproterozoic to late Paleozoic deformations across the Piedmont. In the eastern part of the map, a 5- to 9-kilometer-wide band of tectonic elements that contains two late Paleozoic mylonite zones (Nutbush Creek and Lake Gordon) and syntectonic granite (Buggs Island pluton) separates the Raleigh and Carolina terranes. Amphibolite-facies, infrastructural metaigneous and metasedimentary rocks east of the Lake Gordon mylonite zone are generally assigned to the Raleigh terrane. In the western part of the map area, a 5- to 8-kilometer-wide band of late Paleozoic tectonic elements includes the Hyco and Clover shear zones, syntectonic granitic sheets, and amphibolite-facies gneisses along the western margin of the Carolina terrane at its boundary with the Milton terrane. This band of tectonic elements is also the locus for early Mesozoic extensional faults associated with the early Mesozoic Scottsburg, Randolph, and Roanoke Creek rift basins. The map shows fluvial terrace deposits of sand and gravel on hills and slopes near the Roanoke and Dan Rivers. The terrace deposits that are highest in altitude are the oldest. Saprolite regolith is spatially associated with geologic source units and is not shown separately on the map. Mineral resources in the area include gneiss and granite quarried for crushed stone, tungsten-bearing vein deposits of the Hamme district, and copper and gold deposits of the Virgilina district. Surface-water resources are abundant and include rivers, tributaries, the John H. Kerr Reservoir, and Lake Gaston. Groundwater flow is concentrated in saprolite regolith, along fractures in the crystalline bedrock, and along fractures and bedding-plane partings in the Mesozoic rift basins. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P98AQDR7",
"mediaType": "application/http",
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},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
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"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.6218e3eed34ec739b2dd2d8f.xml"
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|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_6218e3eed34ec739b2dd2d8f |
| keyword |
[
"30 x 60 minute",
"Aaron Formation",
"Aarons Creek",
"Alkaline basalt",
"Allen Creek",
"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:6218e3eed34ec739b2dd2d8f",
"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"
]
|
| modified | 2022-03-16T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -79.0132, 36.4788, -77.9743, 37.0211 |
| theme |
[
"Geospatial"
]
|
| title | Database for the geologic map of the South Boston 30' x 60' Quadrangle, Virginia and North Carolina |