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This Data Release provides tabular and geospatial data digitized by the U.S. Geological Survey (USGS) from a U.S. Bureau of Mines (USBoM) report titled Mineral Investigation of Sangre de Cristo Wilderness Study Area, Alamosa, Custer, Fremont, Huerfano, and Saguache Counties, Colorado. The original preliminary paper report, numbered Mineral Land Assessment 65-83 (MLA 65-83; Ellis and others, 1983), presented the results of a mineral resource potential survey of areas in and around the Sangre de Cristo Range flanking the northeastern extent of San Luis Valley in south-central Colorado. Included in this Data Release are georeferenced scans of the regional plate maps, digitized sample site locations, analytical...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Alamosa County,
Alamosa County,
Baca National Wildlife Refuge,
Blanca Peak,
Cañon City, All tags...
Colorado,
Colorado,
Costilla County,
Costilla County,
Crestone,
Crestone Needle,
Crestone Peak,
Custer County,
Custer County,
Duncan,
Economic Geology,
Fremont County,
Fremont County,
GGGSC,
GIS and Information Management Project,
Geochemistry,
Geology, Geophysics, and Geochemistry Science Center,
Geomorphology,
Great Sand Dunes National Park and Preserve,
Great Sand Dunes National Park and Preserve,
Great Sand Dunes National Preserve,
Gunnison National Forest,
Hayden Pass,
Hermit Pass,
Huerfano Conty,
Huerfano County,
Huerfano County,
Humboldt Peak,
Kit Carson Mountain,
La Veta Pass,
Liberty,
MLA 65-83,
MRP,
Medano Pass,
Mineral Land Assessment,
Mineral Land Assessment 65-83,
Mineral Resources,
Mineral Resources Program,
Mining claim,
Mosca Pass,
Music Pass,
Poncha Pass,
Prospecting,
Rio Grande National Forest,
Rio Grande Rift,
Rita Alta copper mine,
Saguache County,
Saguache County,
Salida,
San Isabel National Forest,
San Luis Valley,
San Luis Valley,
Sangre de Cristo Mountains,
Sangre de Cristo Range,
Sangre de Cristo Range,
Sangre de Cristo Wilderness,
Sangre de Cristo Wilderness,
Silver Cliff,
Structural geology,
U.S. Bureau of Mines,
U.S. Bureau of Mines,
U.S. Geological Survey,
U.S. Geological Survey,
USBoM,
USGS,
USGS Science Data Catalog (SDC),
Westcliffe,
Wet Mountain Valley,
Wilderness,
Wilderness Study Area,
abandoned mines and quarries,
atomic absorption analysis,
chemical analysis,
colorimetry,
copper,
fire assay,
fluorimetry,
geologic maps,
geologic structure,
geoscientificInformation,
geospatial datasets,
gold,
lead,
mass spectroscopy,
mine adit,
mine dump,
mine shaft,
mine stockpile,
mineral resources,
mineralized outcrop,
mineralogy,
molybdenum,
ore formation,
petrology,
prospect pit,
quarry,
sample sites,
silver,
tectonic processes,
tungsten,
uranium, Fewer tags
This report summarizes the geochronologic results from boulders deposited on glacial moraines in the southern Sawatch and Sangre de Cristo Mountains of south-central Colorado. Within this report are detailed the methodology used to collect samples of whole rock, determine the concentrations of cosmogenic beryllium 10 in purified quartz isolated from those samples, and use those nuclide concentrations to calculate surface exposure ages. This report should be used as supplementary material for any publication(s) that uses the nuclide concentrations and/or ages reported herein. This version supersedes all previous age estimates and reports.
Categories: Data;
Tags: Alamosa County,
Blanca Peak,
Chaffee County,
Colorado,
Geomorphology, All tags...
Glaciology,
Mount Ouray,
Sangre de Cristo Range,
Sawatch Range,
USGS Science Data Catalog (SDC),
beryllium-10,
cosmogenic nuclide exposure dating,
geochronology,
geoscientificInformation,
radiometric dating, 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
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