Research Geologist
Geology, Geophysics, and Geochemistry Science Center
Email:
jmorrison@usgs.gov
Office Phone:
303-236-6366
Fax:
303-236-3200
ORCID:
0000-0002-6614-8783
Supervisor:
Kate M Campbell-Hay
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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
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This data release is part of a study examining the occurrence of chromium and natural and anthropogenic hexavalent Chromium, Cr(VI) in groundwater. Data will be used to estimate naturally-occurring background Cr(VI) concentrations upgradient, near the plume margins, and downgradient from a mapped Cr(VI) contamination plume near Hinkley, CA (Izbicki and Groover, 2016). The data release includes grain size distribution, photographic, and associated chemical and mineral analysis data for 36 sediment core and alluvium samples as well as Scanning Electron Microscopy analysis on select grains from magnetic and heavy mineral separates collected near Hinkley, CA. The cooperator for this study is the Lahontan Regional...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: California,
Environmental Health,
Geochemistry,
Hinkley,
USGS Science Data Catalog (SDC), All tags...
Water Resources,
atomic emission spectroscopy,
background level,
chemical analysis,
chromium,
contamination and pollution,
geochemistry,
geoscientificInformation,
groundwater,
health,
mass spectroscopy,
rocks and deposits,
scanning electron microscopy,
soil chemistry,
unconsolidated deposits,
x-ray fluorescence, Fewer tags
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This data release is part of a study examining the use of near-stream groundwater discharge as a tool for Geochemical Exploration. Handcart Gulch is an unmined alpine watershed in Montezuma Mining District in the Colorado Front Range. The streambed is cemented by deep ferricrete deposits. Stream water, groundwater, and ferricrete samples were collected and analyzed to constrain the location of a possible concealed mineral occurrence identified by previous stream water sampling. Nineteen, near stream mini-boreholes were drilled through ferricrete using a portable, handheld, gasoline powered, rock coring drill manufactured by Shaw Tool. Boreholes were drilled within 2 meters of the stream on the east and west banks...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Colorado,
Economic Geology,
GGGSC,
Geochemistry,
Geology, Geophysics, and Geochemistry Science Center, All tags...
Handcart Gulch,
MRP,
Mineral Resources,
Mineral Resources Program,
Park County,
USGS Science Data Catalog (SDC),
Water Quality,
age estimation methods,
chemical analysis,
copper,
economy,
environment,
ferricrete,
geoscientificInformation,
groundwater,
metallic mineral resources,
mineral deposits,
mineralogy,
surface water (non-marine),
water chemistry,
water sampling, Fewer tags
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