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The Alaska Division of Geological & Geophysical Surveys (DGGS) has conducted 1:63,360-scale geologic mapping of the Eagle A-2 Quadrangle (270 square miles; equivalent to four 7.5-minute quadrangles). The area is part of the 100-year old Fortymile mining district and is located in eastern Alaska near the Alaska-Yukon border. This geologic map was produced by merging a bedrock geologic map and a surficial geologic map of the Eagle A-2 Quadrangle and based upon results from field investigations by DGGS in 1999 and 2000, which were part of a three-year mapping program to provide geologic ground truth for airborne geophysical surveys flown by DGGS in the Fortymile mining district during 1998.
Tags: Alaska, State of,
Augen Gneiss,
Chicken,
Eagle Quadrangle,
Fortymile Mining District, All tags...
Geology,
Mining,
Plutons,
STATEMAP Project,
Terrace,
geoscientificInformation, Fewer tags
Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a helicopter-supported geological and geochemical resource assessment project in the Beaver, Bettles, Livengood, and Tanana quadrangles from June 23 through August 5, 2012. The objectives of DGGS's resource assessment are to improve the trace-element geochemical coverage of selected watersheds; to obtain modern, quantitative geochemical analyses; to understand the petrogenesis of the granites; and to better document established mineral occurrences. Stream-sediment, pan-concentrate, and rock sampling were conducted as part of the State's Rare Earth Elements and Strategic Minerals Assessment project, which is...
Tags: Aluminum,
Antimony,
Arsenic,
Augen Gneiss,
Barium, All tags...
Basalt,
Base Metals,
Batholith,
Beaver Quadrangle,
Bedrock,
Beryllium,
Bettles Quadrangle,
Bismuth,
Bonanza Creek,
Cadmium,
Calcium,
Caribou Mountain,
Cerium,
Cesium,
Chalcopyrite,
Chlorite,
Chromium,
Coal Creek,
Cobalt,
Copper,
Critical Minerals,
Dall River,
Dalton Highway,
Dysprosium,
Economic Geology,
Erbium,
Europium,
Exploration,
Felsic,
Fish Creek,
Fleshlanana Creek,
Fluorine,
Fort Hamlin Hills,
Gadolinium,
Galena,
Gallium,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Geology,
Germanium,
Gishna Creek,
Gneiss,
Gobblers Knob,
Gold,
Granite,
Greisen,
Hafnium,
Halu Creek,
Heavy Metals,
Holmium,
Hornfels,
Igneous Rocks,
Iron,
Ishtalitna Creek,
Kanuti Hot Springs,
Kanuti Kilolitna River,
Kanuti River,
Kilo Hot Springs,
Koyuk Mining District,
Lanthanide Elements,
Lanthanum,
Livengood Quadrangle,
Lode,
Lower Ray Hot Springs,
Lutetium,
Magnesium,
Major Oxides,
Manganese,
McQuesten Creek,
Metabasite,
Metals,
Metamorphic Rocks,
Metasedimentary rocks,
Metavolcanic rocks,
Mineral Assessment,
Mineral Deposit,
Mineral Localities,
Mineral Resources,
Minor Oxides,
Molybdenum,
Monazite,
Mount Henry Eakin,
Mount Tozi,
Neodymium,
Nickel,
Niobium,
No Name Creek,
Non-Metals,
Palladium,
Pan Concentrates,
Phosphorus,
Placer,
Placer Gold,
Platinum,
Platinum Group Elements,
Potassium,
Praseodymium,
Precious Metals,
Promethium,
Prospect Creek,
Rare Earth Elements,
Ray Mountains,
Ray River,
Ray River Hot Springs,
Ree,
Resource Assessment,
Resources,
Rhyolite,
Rubidium,
Samarium,
Scheelite,
Schist,
Selenium,
Silica,
Silver,
Sithylemenkat Lake,
Sodium,
Soil Chemistry,
Soil Sampling,
Sphalerite,
Strategic Minerals,
Stream Sediments,
Strontium,
Sulfides,
Sulfur,
Tanana Quadrangle,
Tantalum,
Thallium,
Thorium,
Tin,
Titanium,
Tokusatatquaten Lake,
Torment Creek,
Tourmaline,
Trace Elements,
Trace Geochemical,
Trace Metals,
Trans-Alaska Pipeline,
Tungsten,
Upper Ray Hot Springs,
Uranium,
Vanadium,
Volcaniclastics,
Ytterbium,
Zeunerite,
Zinc,
Zirconium,
geoscientificInformation, 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 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
The Alaska Division of Geological & Geophysical Surveys (DGGS) has conducted 1:63,360-scale geologic mapping of the Eagle A-2 Quadrangle (270 square miles; equivalent to four 7.5-minute quadrangles). The area is part of the 100-year old Fortymile mining district and is located in eastern Alaska near the Alaska-Yukon border. This geologic map was produced by merging a bedrock geologic map and a surficial geologic map of the Eagle A-2 Quadrangle and based upon results from field investigations by DGGS in 1999 and 2000, which were part of a three-year mapping program to provide geologic ground truth for airborne geophysical surveys flown by DGGS in the Fortymile mining district during 1998.
Tags: Alaska, State of,
Augen Gneiss,
Chicken,
Eagle Quadrangle,
Fortymile Mining District, All tags...
Geology,
Mining,
Plutons,
STATEMAP Project,
Terrace,
geoscientificInformation, Fewer tags
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