|
This U.S. Geological Survey (USGS) data release contains data from stream water, groundwater, and soil samples collected in 2019 and 2020 in the North Quartz Creek watershed in central Colorado. Fourteen streambank wells were installed in pairs at seven locations in August 2020 to capture the emerging groundwater from the left bank and right banks (relative to downstream-facing direction) and a synoptic sampling campaign was conducted to quantify metal contributions to the stream. A continuous, instream injection of sodium bromide (NaBr) was initiated at the head of the 5 km study reach several days prior to the synoptic sampling campaign and maintained throughout the duration of the study. Bromide concentrations...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service,
Shapefile;
Tags: "Environmental Health"],
"Mineral Resources",
"Water Quality",
GGGSC,
Geology, Geophysics, and Geochemistry Science Center, All tags...
Gunnison County, Colorado,
Gunnison National Forest,
MRP,
Mineral Resources Program,
North Quartz Creek,
Town of Pitkin,
U.S. Geological Survey,
USGS,
USGS Science Data Catalog (SDC),
["Geochemistry",
abandoned mines and quarries,
chemical tracer studies,
environment,
geochemistry,
geochemistry,
groundwater and surface-water interaction,
groundwater geochemistry,
inland waters,
mine drainage,
streambank well,
sulfide-weathering,
synoptic sampling,
tracer injection, Fewer tags
|
Twenty-five ore and gangue mineral separates from the Miocene-age Goldfield and Tonopah epithermal Au-Ag deposits in southwestern Nevada were analyzed to determine the helium, neon, and argon (He, Ne, and Ar) isotopic compositions contained in fluid inclusions. Four mineral separates from the Butte Main Stage vein deposit and two from the Bingham pyrite-enargite vein deposits were also analyzed. Fifteen separates are from hand samples collected from underground mine workings and the remaining 16 are from mine tailings piles and pits excavated within the past 100 years. The separates consist dominantly of pyrite, enargite, and quartz, with lesser amounts of sphalerite, galena, potassium feldspar, bismuthinite, marcasite,...
Categories: Data;
Tags: 3He/4He,
Ar,
Bingham Copper Mine,
Bingham pyrite-enargite vein deposit,
Butte Main Stage vein deposit, All tags...
CMERSC,
Central Minerals and Environmental Resources Science Center,
Goldfield Mining District,
Goldfield epithermal Au-Ag deposit,
He,
MRP,
Mineral Resources Program,
Mineralogy,
Montana,
Ne,
Nevada,
Tonopah Mining District,
Tonopah epithermal Au-Ag deposit,
USGS Science Data Catalog (SDC),
Utah,
alunite,
argite,
argon,
bismuthinite,
chalcocite,
chalcopyrite,
economy,
epithermal Au-Ag deposit,
fluid inclusions,
galena,
gangue minerals,
geoscientificInformation,
gold,
helium,
isotopes,
isotopic ratios,
marcasite,
mineral deposits,
mineral separates,
neon,
noble gas elements,
ore,
ore formation,
potassium feldspar,
pyrite,
quartz,
rhodonite,
sphalerite,
vein deposit,
volatiles, Fewer tags
|
Boreholes were drilled in 2017 and 2018 in Redwell Basin, a headwater catchment underlain by mineralized and hydrothermally altered sedimentary rock in the Elk Mountains near the town of Crested Butte, Colorado. Site locations and drilling procedures are documented under the main page of this data release. Borehole geophysical data were collected in boreholes MW1, MW1UZ, and MW2.1 as open holes prior to well construction. Logging was performed by a combination of USGS and Mount Sopris Instruments (MW1) and University of Wyoming (MW1UZ and MW2.1) staff. Log types vary by well on the basis of available equipment, site limitations, and borehole conditions. In borehole MW1, log types include fluid temperature and conductivity,...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Colorado,
Crested Butte,
Cretaceous,
Elk Mountains,
GGGSC, All tags...
Geology, Geophysics, and Geochemistry Science Center,
Gunnison County,
Gunsight Pass,
Lawrence Berkeley National Laboratory,
MRP,
Mesaverde Formation,
Mineral Resources Program,
Mount Sopris Instruments,
Quaternary,
Redwell Basin,
Rocky Mountain Biological Laboratory,
Subsurface Biogeochemical Research Program,
U.S. Geological Survey (USGS),
University of Wyoming,
borehole logging,
core analysis,
drilling and coring,
environment,
geoscientificInformation,
groundwater,
groundwater level,
hydrogeology,
permeability,
porosity, Fewer tags
|
This data release includes GIS datasets supporting the Colorado Legacy Mine Lands Watershed Delineation and Scoring tool (WaDeS), a web mapping application available at https://geonarrative.usgs.gov/colmlwades/. Water chemistry data were compiled from the U.S. Geological Survey (USGS) National Water Information System (NWIS), U.S. Environmental Protection Agency (EPA) STORET database, and the USGS Central Colorado Assessment Project (CCAP) (Church and others, 2009). The CCAP study area was used for this application. Samples were summarized at each monitoring station and hardness-dependent chronic and acute toxicity thresholds for aquatic life protections under Colorado Regulation No. 31 (CDPHE, 5 CCR 1002-31) for...
Categories: Data;
Tags: "Mineral Resources"],
"Water Quality",
Arapaho National Forest,
Carson National Forest,
Colorado, All tags...
GGGSC,
GIS,
Geology, Geophysics, and Geochemistry Science Center,
Grand Mesa National Forest,
Gunnison National Forest,
MRP,
Medicine Bow National Forest,
Mineral Resource Program,
Pike National Forest,
Rio Grande National Forest,
Routt National Forest,
San Isabel National Forest,
San Juan National Forest,
USGS Science Data Catalog (SDC),
Uncompahgre National Forest,
White River National Forest,
["Geochemistry",
alteration,
elevation,
geoscientificInformation,
geospatial analysis,
geospatial datasets,
mineral deposits,
mineralization,
remote sensing,
surface water quality,
water chemistry,
watershed delineation,
watershed management, Fewer tags
|
Four boreholes (MW1, MW1UZ, MW2, MW2.1) were drilled in the fall of 2017 and summer of 2018 in upper Redwell Basin, a headwater catchment underlain by hydrothermally altered sedimentary rock in the Elk Mountains near the town of Crested Butte, Colorado. The boreholes were continuously cored using a wireline HQ-sized coring system and sample a combination of Quaternary-aged surficial colluvium and the Cretaceous-aged Mesaverde Formation. In-situ injection-based hydraulic tests were performed in MW1 and MW2 during drilling while advancing using a single-packer apparatus in tandem with an in-line flow meter and interval pressure monitoring. Borehole geophysical logging was performed in MW1, MW1UZ, and MW2.1 in the...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service,
Shapefile;
Tags: Colorado,
Crested Butte,
Cretaceous,
Elk Mountains,
GGGSC, All tags...
Geology, Geophysics, and Geochemistry Science Center,
Geophysics,
Gunnison County,
Gunsight Pass,
Hydrology,
Hydrology,
Lawrence Berkeley National Laboratory,
MRP,
Mesaverde Formation,
Metal transport in mineralized mountain watersheds,
Mineral Resources,
Mineral Resources,
Mineral Resources Program,
Mount Sopris Instruments,
Quaternary,
Redwell Basin,
Rocky Mountain Biological Laboratory,
Subsurface Biogeochemical Research Program,
U.S. Geological Survey (USGS),
USGS Science Data Catalog (SDC),
University of Wyoming,
borehole logging,
core analysis,
drilling and coring,
environment,
geoscientificInformation,
groundwater,
groundwater level,
hydrogeology,
permeability,
porosity, Fewer tags
|
View more...
|