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This is a geochemical data set from the reanalysis of 44 rock samples collected between 1966 and 1970, and 107 sediment samples collected in 1966 and 1967. These samples were collected by the U.S. Geological Survey for a study investigating the mineral resources of the Idaho Primitive Area (Cater et al., 1973). The samples are from the Lower Middle Fork of the Salmon River, including the tributaries of Big Creek, Camas Creek, Brush Creek, Wilson Creek, Waterfall Creek, Ship Island Creek, Reese Creek, Stoddard Creek, and Papoose Creek. The overall objective of this study is to characterize the regional impact of legacy mining for the Frank Church River of No Return Wilderness Area. Mary P. Rossillon (1981) explored...
Categories: Data;
Tags: Annie Creek,
Atomic absorption analysis,
Atomic emission spectroscopy,
Beaver Creek,
Big Creek, All tags...
Big Ramey Creek,
Biotite,
Biotite-feldspar,
Biotite-muscovite,
Botha Creek,
Brush Creek,
Cabin Creek,
Calc-silicate rock,
Camas Creek,
Camp Creek,
Canyon Creek,
Cave Creek,
Challis intrusive,
Challis volcanic group,
Chemical analysis,
Chlorite-biotite,
Cliff Creek,
Coin Creek,
Copper Creek,
Coxey Creek,
Crooked Creek,
Diorite,
Eagan Creek,
Fawn Creek,
GGGSC,
Geochemistry,
Geochemistry,
Geology,
Geology, Geophysics, and Geochemistry Science Center,
Glacial deposit,
Gneiss,
Granite,
Granodiorite,
Hand Creek,
Holy Terror Creek,
Hornblende-biotite,
Idaho,
Idaho Primitive Area,
Jackass Creek,
Lake Creek,
Lapilli tuff,
Latite,
Lehmi group,
Lewis Creek,
Little Marble Creek,
Little Ramey Creek,
Logan Creek,
Lower Middle Fork Salmon,
MRP,
Mass spectroscopy,
Metasedimentary rock,
Middle Fork Salmon River,
Middle Fork terraces,
Migmatite,
Mineral Resources Program,
Monumental Creek,
Moore Creek,
Mule Creek,
Neoproterozoic intrusive,
Paint Creek,
Papoose Creek,
Parker Mountain,
Phyllite,
Porphyry,
Quartzite,
Quartzose,
Rainbow Creek,
Reese Creek,
Rhyolite,
Rush Creek,
Schistose,
Seafoam,
Sedimentology,
Ship Island Creek,
Smith Creek,
Snowslide Creek,
Stoddard Creek,
Sunnyside tuff,
Syenite,
Telephone Creek,
Threemile Creek,
Thunder Mountain,
Timm Creek,
Trap Creek,
USGS Science Data Catalog (SDC),
United States,
Waterfall Creek,
Wildhorse Creek,
Wilson Creek,
Windermere supergroup,
Woodtick Creek,
Yellowjacket,
Yellowjacket Creek, Fewer tags
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 bedrock geologic map database of the Woodstock quadrangle consists of highly deformed metasedimentary rocks of the Central Maine trough, including the Silurian Rangeley and Perry Mountain Formations and the Devonian Littleton Formation. The central, northern, and eastern parts of the quadrangle are underlain by the oldest rocks in the area, the Rangeley Formation. In the southwest and southcentral part of the quadrangle, metaturbidites of the Perry Mountain Formation and subsequent Littleton Formation overly the Rangeley Formation in a deformed F1 synform, herein informally called the Bagley Brook basin. The metasedimentary rocks were intruded by widespread syn- to post-tectonic granitoids of the Devonian New...
Tags: Amphibolite,
Anorthosite,
Aplite,
Calc-silicate rock,
Concord Granite, All tags...
Conglomerate,
Cretaceous,
Devonian,
Diabase,
Economic Geology,
Grafton,
Granite,
Granitoid,
Granodiorite,
Granofels,
Greenschist,
Jurassic,
Kinsman Granodiorite,
Lamprophyre,
Littleton Formation,
Mesozoic,
Metamorphic rock,
Metasedimentary rock,
Mineral Resources,
New Hampshire,
New Hampshire Plutonic Suite,
Paleozoic,
Pegmatite,
Perry Mountain Formation,
Plutonic rock,
Quartz monzonite,
Quartzite,
Rangeley Formation,
Schist,
Serpentinite,
Silurian,
Stratigraphy,
Structural Geology,
USGS Science Data Catalog (SDC),
United States,
Volcanic rock,
White Mountain Igneous Suite,
White Mountain National Forest,
Woodstock,
abandoned mines and quarries,
alteration,
bedrock geologic units,
cartography,
deformation (geologic),
earth history,
earth sciences,
economic geology,
faulting (geologic),
folding (geologic),
foliation (geologic),
fracture (geologic),
geologic contacts,
geologic maps,
geologic structure,
geology,
geoscientificInformation,
geospatial datasets,
igneous rocks,
lineation (geologic),
maps and atlases,
metamorphic rocks,
metamorphism (geological),
mine and quarrying,
mineral deposits,
mineral resources,
mineralogy,
natural resource extraction,
petrology,
plutonic rocks,
rocks and deposits,
structural geology,
structure,
tectonic processes, Fewer tags
The database for the Buckner 7.5-minute quadrangle straddles three terrane boundaries in the Piedmont Physiographic Province in central Virginia: the Chopawamsic terrane, the Elk Hill Complex, and the Goochland terrane. In much of the map area, the Elk Hill Complex separates the Chopawamsic and Goochland terranes. Rocks of the Chopawamsic terrane include Ordovician metavolcanic and metasedimentary rocks of the Chopawamsic Formation, Ordovician to Silurian granodiorite sheet intrusions, and Paleozoic mafic intrusions. Silurian to Devonian rocks of the Quantico Formation, mostly garnet-mica schist, crop out in the northwesternmost part of the map area, and are in unconformable contact with rocks of the Chopawamsic...
Categories: Data;
Tags: Alluvium,
Amphibolite,
Buckner,
Chopawamsic Formation,
Devonian, All tags...
Diabase,
Economic Geology,
Elk Hill Complex,
Energy Resources,
Felsic gneiss,
Felsic metasedimentary rocks,
Felsic metavolcanic rocks,
Felsic volcanic rock,
Gabbro,
Garbenschiefer,
Gneiss,
Granodiorite,
Granofels,
Gravel,
Holocene,
Jurassic,
Lake Anna,
Louisa,
Maidens Gneiss,
Mesoproterozoic,
Mesozoic,
Metasedimentary rock,
Metavolcanic rock,
Miocene,
Mylonite,
Neoproterozoic,
Ordovician,
Paleozoic,
Pegmatite,
Phyllite,
Phyllonite,
Pleistocene,
Pliocene,
Quantico Formation,
Quartzite,
Sand,
Schist,
Silt,
Silurian,
Structural Geology,
Tonalite,
USGS Science Data Catalog (SDC),
Ultramafic intrusive rock,
United States,
Virginia,
alteration,
bedrock geologic units,
deformation (geologic),
earth sciences,
economic geology,
environment,
faulting (geologic),
folding (geologic),
foliation (geologic),
fracture (geologic),
geochronology,
geologic contacts,
geologic maps,
geologic structure,
geologic time scales,
geoscientificInformation,
gravel deposits,
igneous rocks,
lineation (geologic),
metamorphic rocks,
metamorphism (geologic),
mineralogy,
optical microscopy,
petrography,
petrology,
plutonic rocks,
potassium-argon analysis,
radiometric dating,
sand deposits,
stratigraphy,
structural geology,
surficial geologic units,
tectonic processes,
uranium-lead analysis,
volcanic rocks, Fewer tags
This data release is a geochemical data set from the reanalysis of 23 rock and 85 sediment samples collected between 1966 and 1970 by the U.S. Geological Survey (USGS) for a series of studies investigating the mineral resources of the Idaho Primitive Area (Cater et al., 1973). The samples are from the upper Middle Fork Salmon River and the South Fork Salmon River, including the tributaries of East Fork of the South Fork and Porphyry Creek. The overall objective of this study is to characterize the regional impact of legacy mining for the Frank Church - River of No Return Wilderness Area. In 1980 the U. S. Congress passed the Central Idaho Wilderness Act which combined the Idaho Primitive Area, the Salmon Rivers...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Automatic Creek,
Beansnapper Creek,
Bear Creek,
Big Chief Creek,
Big Cottonwood Creek, All tags...
Cabin Creek,
Cache Creek,
Cane Creek,
Canyon Creek,
Challis Volcanic Group,
Colorado,
Colt Creek,
Cornish Creek,
Cultus Creek,
Dewey Mine,
East Fork Indian Creek,
East Fork South Fork Salmon River,
East Fork Springfield Creek,
East Fork Trail Creek,
Forty-five Creek,
Frank Church - River of No Return Wilderness Area,
GGGSC,
Geochemistry,
Geology, Geophysics, and Geochemistry Science Center,
Glass Mountain,
Gunsight Formation,
Idaho,
Idaho Primitive Area,
Indian Creek,
Little Indian Creek,
Little Loon Creek,
Little Pistol Creek,
Loon Creek,
Luger Creek,
MRP,
Marble Creek,
Mearney Creek,
Middle Fork Indian Creek,
Middle Fork Salmon River,
Middle Fork terraces,
Mineral Resources Program,
North Fork Porphyry Creek,
North Fork Wolf Fang Creek,
Pistol Creek,
Poee Creek,
Porphyry Creek,
Profile Creek,
Pungo Creek,
Rapid River,
Ryan Creek,
Salmon Rivers Breaks Primitive Area,
Shrapnel Creek,
Silver Plume,
South Fork Salmon River,
South Fork Wolf Fang Creek,
Spring Creek,
Springfield Creek,
Sugar Creek,
Sunnyside tuff,
Tamarack Creek,
Thirty-two Creek,
Thunder Mountain Caldera,
Trail Creek,
Trigger Creek,
Twenty-five Creek,
USA,
USGS Science Data Catalog (SDC),
United States,
Upper Middle Fork Salmon River,
West Fork Little Loon Creek,
West Fork Trail Creek,
Wolf Fang Creek,
alluvium,
arsenic,
atomic absorption analysis,
atomic emission spectroscopy,
biotite,
carbonate rock,
chemical analysis,
clastic rock,
conglomerate,
copper,
critical minerals,
foliation,
geochemistry,
geology,
gneiss,
granite,
granodiorite,
hornblende,
hornblende-biotite,
hydride generation,
lapilli tuff,
mass spectroscopy,
metallic mineral resources,
migmatite,
mineral deposits,
mineral resources,
mineralization,
muscovite sulfides,
muscovite-biotite,
nonmetallic mineral resources,
pebble conglomerate,
phyllite,
porphyry,
quartz,
rhyolite,
rock drainage,
sandstone,
tributary,
tuff,
volcanic rock, 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
Regional geologic investigations show that all the metamorphosed crystalline rocks underlying the Greenville 1 degree x 2 degree quadrangle are allochthonous. Seismic-reflection studies, the COCORP line (Cook and others, 1979), and the U.S. Geological Survey (USGS) seismic lines (Harris and Bayer, 1979; Harris and others, 1981) present seismic profiles across different parts of the southern Appalachians. Recent geophysical studies for the now discontinued Appalachian Ultradeep Core Hole (ADCOH) project were concentrated in the Greenville quadrangle (Hatcher and others, 1988). The ADCOH seismic-reflection profiles tie in with the COCORP profile of Cook and others (1979), providing a three-dimensional view of the...
Tags: Amphibolite,
Antreville,
Blue Ridge,
Caesars Head Granite,
Calc-silicate rock, All tags...
Cambrian,
Chauga River Formation,
Copperhill Formation,
Coronaca Granite,
Devonian,
Diabase,
Elberton Granite,
Gabbro,
Georgia,
Gneiss,
Granite,
Granodiorite,
Great Smoky Group,
Greenville,
Helen Group,
Henderson Gneiss,
Horton Formation,
Hothouse Formation,
Hughes Gap Formation,
Jurassic,
Mesoproterozoic,
Mesozoic,
Metasedimentary rock,
Metavolcanic rock,
Mineral Resources,
Mississippian,
Monzonite,
Mylonite,
Nacoochee Formation,
Nantahala Shale,
Neoproterozoic,
Ocoee Supergroup,
Ordovician,
Paleozoic,
Paragneiss,
Pegmatite,
Pennsylvanian,
Permian,
Phyllite,
Phyllonite,
Poor Mountain Formation,
Quartzite,
Richard Russell Formation,
Robertstown Formation,
Schist,
Silurian,
South Carolina,
Structural Geology,
Syenite,
Tonalite,
Toxaway Gneiss,
Trondhjemite,
USGS Science Data Catalog (SDC),
Wehutty Formation,
digitization,
earth sciences,
folding (geologic),
foliation (geologic),
geologic history,
geoscientificInformation,
geospatial datasets,
igneous rocks,
lineation (geologic),
metamorphic rocks,
metamorphism (geological),
plutonic rocks,
radiometric dating,
rubidium-strontium analysis,
structural geology,
uranium-lead analysis,
volcanic rocks, Fewer tags
This dataset accompanies the proposed publication, 'Geochronology and geochemistry of igneous and metasedimentary rocks of northeast Afghanistan: A refinement of the timing and origin of crustal terranes', which focuses on refining the geochronology and geochemistry of these rocks during multiple time periods of accretion, regional metamorphism, and magmatic activity. The analyses were performed from September 2006 to August 2014.
Categories: Data,
Data Release - Revised;
Tags: 40Ar/39Ar,
Afghanistan,
Argon Geochronology Laboratory,
Badakshan,
GGGSC, All tags...
Geochemistry,
Geology, Geophysics, and Geochemistry Science Center,
Jagdalek,
Kabul,
MRP,
Mineral Resources Program,
Pb,
U,
U.S. Geological Survey,
USGS,
USGS Science Data Catalog (SDC),
geochronology,
geoscientificInformation,
gneiss,
granite,
granodiorite,
mass spectrometry,
radiometric dating,
schist, Fewer tags
The geodatabase for the Charlotte 1 degree × 2 degrees quadrangle by Goldsmith and others (1988) was compiled in the Geologic Map Schema (GeMS). The geologic map extends across four lithotectonic belts of the Piedmont from the Coastal Plain and Wadesboro Triassic basin on the east to the Blue Ridge belt in the vicinity of the Grandfather Mountain window on the west. The Wadesboro Triassic basin contains arkosic sandstone, siltstone and conglomerate unconformably overlain by small inliers of late Cretaceous Coastal Plain sediment of the Middendorf Formation (?). The Blue Ridge, Inner Piedmont, Kings Mountain, Charlotte, and Carolina Slate belts consist of different Mesoproterozoic to Late Paleozoic metamorphosed...
Tags: Albemarle Group,
Alexander County,
Alligator Back Formation,
Ashe Formation,
Battlefield Formation, All tags...
Blacksburg Formation,
Blowing Rock Gneiss,
Blue Ridge,
Brevard fault zone,
Brown Mountain Granite,
Burke County,
Caldwell County,
Cambrian,
Catawba County,
Catawba River,
Charlotte,
Cherry Mountain,
Cherryville Granite,
Chilhowee Group,
Churchland Plutonic Suite,
Cid Formation,
Concord Plutonic Suite,
Cowpens,
Cranberry Gneiss,
Crossnore Complex,
Davie County,
Denton,
Devonian,
Durham,
Early Cambrian,
Early Devonian,
Ediacaran fauna,
Elk Park Plutonic Suite,
Flat Swamp Member,
Floyd Church Formation,
Gaffney,
Gastonia,
Henderson Gneiss,
Henry Fork,
High Shoals Granite,
Jumping Branch Manganiferous Member,
Jurassic,
Kings Mountain,
Lake Norman,
Late Cretaceous,
Late Ordovician,
Late Proterozoic,
Late Triassic,
Lincoln County,
Lincolnton,
Middle Proterozoic,
Mississippian,
North Carolina,
Paleozoic,
Pennsylvanian,
Permian,
Piedmont,
Precambrian,
Roxboro,
Salisbury Plutonic Suite,
Sandy Mush,
Sauratown Mountains,
Shady Dolomite,
Silurian,
South Carolina,
South Mountains,
Sunshine,
Tillery Formation,
Triassic,
USGS Science Data Catalog (SDC),
Uwharrie Formation,
Wadesboro,
Wilson Creek Gneiss,
Winston-Salem,
Yadkin Formation,
Yadkin River,
alaskite,
allochthonous,
amphibolite,
amphibolite facies,
anticline,
arkosic sandstone,
breccia,
brecciation,
brittle deformation,
cataclasis,
conglomerate,
coticule,
diabase,
diorite,
dolomite,
ductile faulting,
epidote-amphibolite facies,
fossils,
gabbro,
gneiss,
gondite,
granite,
granodiorite,
graywacke,
greenschist facies,
hornfels,
igneous rocks,
lamprophyre,
manganiferous chert,
metadiabase,
metadiorite,
metagabbro,
metagranite,
metagranodiorite,
metagraywacke,
metamorphic rocks,
metamorphism (geological),
metasyenite,
metatonalite,
metatrondhjemite,
metavolcanic rocks,
metavolcanic rocks,
monzogranite,
mudstone,
mylonite,
mylonitized,
nappe,
none,
pegmatite,
phyllite,
plutonic rocks,
quartzite,
recumbent folding,
schist,
sedimentary rocks,
shear zone,
siltstone,
staurolite-kyanite zone,
syenite,
syncline,
tonalite,
tourmaline-quartz rock,
tuff,
ultramafic rocks,
volcanoes, 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
This 1:50,000-scale geologic map represents a compilation of the most recent geologic studies of the upper Arkansas River valley, between Leadville and Salida, Colorado. The valley is structurally controlled by an extensional fault system that forms part of the prominent northern Rio Grande rift, an intra-continental region of crustal extension. This work also incorporates new detailed geologic mapping of poorly understood areas within the map area and reinterprets previously studied areas, aided by lidar data that covers 59 percent of the map area. The mapped region extends into the Proterozoic metamorphic and intrusive rocks in the Sawatch Range west of the valley and the Mosquito Range to the east. Paleozoic...
Categories: Data;
Tags: 207Pb/206Pb zircon age,
40Ar/39Ar age,
Arkansas River,
Balltown,
Balltown placer gold mining areas, All tags...
Belle of Granite Mine,
Big Union Creek,
Bishop ash,
Black Cloud Mine,
Black Mountain,
Browns Canyon,
Browns Canyon fluorspar mining district,
Browns Creek,
Buckskin Gulch,
Buena Vista,
Buffalo Creek,
Buffalo Peaks,
Bull Lake glaciation,
Cache Creek,
California Gulch,
California Mine,
Centerville,
Chaffee County,
Chalk Creek,
Clear Creek,
Clear Creek Reservoir,
Colorado,
Cottonwood Creek,
Dry Union Gulch,
Eagle County,
Eagle River,
East Fork Arkansas River,
Eddy Creek,
Elephant Rock,
Fremont County,
Front Range,
Garfield,
Garfield Mine,
Garfield mining district,
Gordon Mine,
Granite,
Granite mining district,
Granite placer gold mining areas,
Hayden Gulch,
Homestake Reservoir,
Iowa Gulch,
Johnson Village,
Lake County,
Lake Creek,
Langhoff Gulch,
Lava Creek B ash,
Leadville,
Leadville mining district,
Lilly Mine,
London Mine,
Malta,
Maysville,
Mesozoic rocks,
Morrison Creek,
Mosquito Range,
Mount Aetna,
Mount Antero,
Mount Antero mining district,
Mount Princeton,
Mount Shavano,
Mount Yale,
Paleozoic rocks,
Park County,
Pine Creek,
Pinedale glaciation,
Pitkin County,
Poncha Springs,
Proterozoic rocks,
Quaternary deposits,
Rio Grande rift,
Riverside,
Rock Creek,
Ruby Mine,
Ruby Mountain,
San Juan Mountains,
Sangre de Cristo Range,
Sawatch Range,
Sedalia Mine,
Sedalia copper-zinc mining district,
South Arkansas River,
South Park,
South Platte River,
Squaw Creek,
St. Kevin mining district,
Structural Geology,
Sugar Loaf mining district,
Sugarloaf Mountain,
Tennessee Creek,
Tertiary rocks,
Triad Ridge,
Trout Creek,
Trout Creek Pass,
Trout Creek paleovalley,
Tumble Creek,
Turquoise Lake,
Twin Lakes Reservoir,
Twin Lakes mining district,
Two Bits mining district,
USA,
USGS Science Data Catalog (SDC),
United States,
Western Alma mining district,
Weston Pass,
Weston Pass mining district,
Yankee Blade Mine,
alluvial deposits,
alluvium,
andesite,
artificial-fill deposits,
augen gneiss,
basalt,
basin-fill deposits,
breccia,
colluvium,
copper,
cosmogenic surface-exposure age,
dacite,
debris flow,
debris-flow deposits,
diamicton,
diorite,
eolian deposits,
fan deposits,
fault,
faulting,
fluorspar,
fluvial deposits,
gabbro,
glacial deposits,
glacial flood deposits,
glacial flood gravel,
glaciofluvial deposits,
gneiss,
gold,
graben,
granite,
granitic gneiss,
granodiorite,
gravel,
hydrologic hazards,
hypabyssal rhyolite,
intrusive rock,
lahar deposit,
lamprophyre,
landslide deposits,
latite,
lava,
lead,
leucogranite,
leucogranite gneiss,
lidar imagery,
man-made deposits,
mass-movement deposits,
mass-movement hazards,
metabasalt,
metagabbro,
metaigneous rocks,
metasedimentary rocks,
metavolcanic rocks,
microtonalite,
mine,
mine-waste deposits,
mineral deposits,
mining district,
monzodiorite,
monzogranite,
monzonite,
mud-flow deposits,
neotectonics,
ore,
outwash,
outwash gravel,
peat deposits,
pegmatite,
periglacial,
placer gold,
placer-tailings deposits,
porphyry,
pre-Bull Lake glaciation,
quartz diorite,
quartz latite,
quartzite,
rhyodacite,
rhyolite,
rift,
rock-glacier deposits,
sackungen,
sand and gravel resources,
scarp,
schist,
sedimentary rocks,
seismic hazards,
silver,
smelter-slag deposits,
soil,
surficial deposits,
talus deposits,
till,
tuff,
volcanic ash,
volcanic breccia,
volcanic rock,
weathering,
wetland deposits,
zinc, Fewer tags
This report presents 40Ar/39Ar step-heating geochronology results for igneous and metamorphic rocks from the Alaska Division of Geological & Geophysical Surveys' (DGGS) geologic mapping project in the Tanacross A-5 and A-6 quadrangles and adjoining areas. Our results indicate the Hona granodiorite pluton intruded the area in the Late Cretaceous between 76 and 71 Ma. We determined Cretaceous metamorphic ages from 126 to 121 Ma for hornblende, biotite, sericite and muscovite from multiple samples of upper greenschist to amphibolite grade rocks. This is consistent with regional argon results that imply this area is in the upper plate of the Yukon Tanana Terrane (Hansen and Dusel-Bacon, 1998). Basaltic andesite dikes...
Tags: 40Ar/39Ar,
Amphibolite,
Analyses,
Analyses and Sampling,
Analytical Lab Results, All tags...
Analytical Results,
Basalt,
Bedrock,
Crystals,
Exploration,
Faulting,
Geochronology,
Geologic,
Geology,
Gneiss,
Granite,
Granodiorite,
Greenschist,
Hornblende,
Igneous,
Isotopes,
Metamorphic,
Metamorphic Rocks,
Metamorphism,
Methods,
Mica,
Mineral Composition,
Mineral Prospect,
Mineralogy,
Minerals,
Muscovite,
Noah Prospect,
Plagioclase,
Plutonic,
Rocks,
Sample Location,
Sericite,
Shalosky Prospect,
Tanacross Quadrangle,
Tok,
Tok Mining District,
Tok River,
geoscientificInformation, Fewer tags
This map geodatabase digitally represents the general distribution of bedrock geologic map units in the Turtle Mountains area, California, as portrayed in Plate 1 of USGS Bulletin 1713-B, Mineral resources of the Turtle Mountains Wilderness Study Area, San Bernardino County, California (1988), https://doi.org/10.3133/b1713B. The map covers parts of the Rice, Turtle Mountains, and Savahia Peak 15’ quadrangles at 1:48,000 scale. Plate 1 is titled Mineral resource potential map of the Turtle Mountains Wilderness Study Area, San Bernardino County, California. The current database represents the geologic map base of Plate 1, but does not include mines, prospects, and mineral-potential evaluations that Plate 1 also portrays....
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Arica Mountains,
Augen Gneiss,
Basalt,
Bedrock Geologic Units,
Biotite Gneiss, All tags...
California,
Diabase,
Digitization,
Dike,
Diorite,
Faulting (geologic),
Gabbro,
GeMS (Geologic Map Schema),
Geologic Contacts,
Geologic Maps,
Geology,
Geospatial Datasets,
Gneiss,
Granite,
Granitic Gneiss,
Granodiorite,
Grommet,
Horn Spring,
Hornblendite,
Igneous Rocks,
Intermediate Volcanic Rock,
Lower Colorado,
Lower Colorado River,
Lower Colorado River Basin,
Mafic Volcanic Rock,
Martins Well,
Metamorphic Rocks,
Mineral Resources,
Mohawk Spring,
Mojave,
Mojave Wilderness,
Mopah Peaks,
NCGMP (National Cooperative Geologic Mapping Program),
NGMDB (National Geologic Map Database),
Parker,
Plutonic Rocks,
Rice,
Sablon,
San Bernardino County,
Savahia Peak,
Sedimentary Rocks,
Turtle Mountains,
Turtle Mountains Wilderness,
USGI (United States GeoFramework Initiative),
Vidal,
Vidal Junction,
Volcanic Rocks, Fewer tags
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