Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
|
Lake Powell retains most of the phosphorus that it receives, leading to downstream phosphorus limitation. These data were compiled to examine controls on phosphorus cycling below Lake Powell in the Colorado River and from storm inputs from the Paria River. Objectives of our study were to determine how several forms of phosphorus, both organic and inorganic, were cycled under varying dissolved oxygen concentrations and pH, reflecting the range of values observed in the river over the years. These data represent nitrogen, phosphorus, calcium, and carbon concentrations, water quality parameters (pH, dissolved oxygen, temperature), sediment composition, total protein, and extracellular enzyme activity (alkaline phosphatase)....
Categories: Data;
Tags: Aquatic Biology,
Arizona,
Colorado River,
Ecology,
Geochemistry, All tags...
Geography,
Glen Canyon,
Glen Canyon National Recreation Area,
Grand Canyon,
Grand Canyon National Park,
Hydrology,
Information Sciences,
Lake Mead National Recreation Area,
Lake Powell,
Lees Ferry,
Limnology,
Little Colorado River,
Paria River,
Pearce Ferry,
USGS Science Data Catalog (SDC),
alkaline earth elements,
alkaline phosphatase,
atomic emission spectroscopy,
biochemistry,
biota,
bulk density,
calcite,
calcium carbonate,
carbon,
chemical analysis,
chemical attributes,
dam,
data release,
dissolved oxygen concentrations,
dissolved oxygen optodes,
dissolved phosphorus concentrations,
environment,
extracellular enzyme activity,
field experiments,
freshwater ecosystems,
incubations,
inductively coupled plasma,
inlandWaters,
laboratory bottle incubations,
laboratory experiments,
nitrogen,
nutrient content (water),
nutrient cycling,
organic matter,
oxygen content (water),
phosphorus,
phosphorus content,
phosphorus cycling,
river systems,
river water quality,
riverine phosphorus cycling,
sediment composition,
suspended material (water),
tailwater,
total dissolved nitrogen,
total phosphorus concentrations,
total protein analysis,
unconsolidated deposits,
water chemistry,
water chemistry data,
water pH,
water quality,
water quality sonde,
water samples,
water temperature, Fewer tags
This data release contains geochemical data from selected U.S. Geological Survey (USGS) projects from the 1960s-1980s that were previously unpublished as digital data. The objective of those projects was to describe the geology, determine petrologic and geochemical characteristics, or to evaluate the mineral resource potential of Federal Lands and adjacent study areas. These data comprise geochemical analyses from 36,498 samples--27,223 rock samples, 4,091 sediment samples, 2,351 soil samples, 330 heavy-mineral pan concentrate samples, 297 organic material samples, 58 mineral samples, 27 water samples, 11 miscellaneous samples, and 2,110 unspecified media samples. More than 78 percent of these samples were analyzed...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: "Geochemistry",
"Mineral Resources"],
Alaska,
California,
Colorado, All tags...
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Idaho,
MRP,
Mineral Resources Program,
Missouri,
Montana,
NGDB,
National Geochemical Database,
Nevada,
New Mexico,
USGS Science Data Catalog (SDC),
United States,
Utah,
Washington,
West Virginia,
Wisconsin,
Wyoming,
["Economic Geology",
alkali metal elements,
alkaline earth elements,
aluminum,
antimony,
arsenic,
atomic absorption analysis,
atomic emission spectroscopy,
barium,
beryllium,
bismuth,
boron,
bromine,
cadmium,
calcium,
cerium,
chemical analysis,
chlorine,
chromium,
cobalt,
copper,
dysprosium,
economic geology,
erbium,
europium,
exploration geochemistry,
fluorine,
gadolinium,
gallium,
geochemical data,
geochemistry,
geoscientificInformation,
germanium,
gold,
hafnium,
halogen elements,
holmium,
igneous rocks,
indium,
iodine,
iridium,
iron,
lanthanide series elements,
lanthanum,
lead,
lithium,
lutetium,
magnesium,
manganese,
mercury,
metal elements,
metamorphic rocks,
mineral deposits,
mineral resources,
molybdenum,
neodymium,
nickel,
niobium,
nonmetal elements,
palladium,
pan concentrate,
phosphorus,
platinum,
platinum-group elements,
plutonic rocks,
potassium,
praseodymium,
rare earth elements,
rhenium,
rhodium,
rock geochemistry,
ruthenium,
samarium,
scandium,
sediment geochemistry,
sedimentary rocks,
selenium,
silicon,
silver,
sodium,
stream sediment,
strontium,
sulfur,
tantalum,
tellurium,
terbium,
thallium,
thorium,
thulium,
tin,
titanium,
tungsten,
unconsolidated deposits,
uranium,
vanadium,
volcanic rocks,
x-ray fluorescence,
ytterbium,
yttrium,
zinc,
zirconium, Fewer tags
There is a growing demand for commodities (elements, compounds, minerals) used in today's advanced technologies. Critical minerals are usually found in ore deposits that are deemed vital to economic and national security. The National Geochemical Database on Ore Deposits: Legacy data (NGDOD) contains chemistry and geologic information for nearly 30,000 historic ore and ore-related rock samples from mineral deposits and mining districts in the United States. Geochemical data sets from various mineral deposits were submitted by geologists of the "Systems Approach to Critical Minerals Inventory, Research, and Assessment" (SACM) within the U.S. Geological Survey Mineral Resource Program (MRP). The data sets represent...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Alaska,
Arizona,
California,
Colorado,
Economic Geology, All tags...
Geochemistry,
Idaho,
Illinois,
Kentucky,
Maine,
Mineral Resources,
Missouri,
Montana,
NGDB,
National Geochemical Database,
Nevada,
New Mexico,
New York,
Oregon,
Texas,
USGS Science Data Catalog (SDC),
United States,
Utah,
Washington,
Wyoming,
alkali metal elements,
alkaline earth elements,
aluminum,
antimony,
arsenic,
atomic absorption analysis,
atomic emission spectroscopy,
barium,
beryllium,
bismuth,
boron,
bromine,
cadmium,
calcium,
carbon,
cerium,
cesium,
chemical analysis,
chlorine,
chromium,
cobalt,
copper,
critical minerals,
dysprosium,
economic geology,
erbium,
europium,
fluorine,
gadolinium,
gallium,
geochemical data,
geochemistry,
geoscientificInformation,
germanium,
gold,
hafnium,
halogen elements,
historic ores,
holmium,
igneous rocks,
indium,
iridium,
iron,
lanthanide series elements,
lanthanum,
lead,
lithium,
lutetium,
magnesium,
manganese,
mass spectroscopy,
mercury,
metal elements,
metallic mineral resources,
metamorphic rocks,
mineral deposit type,
mineral deposits,
mineral resources,
mineral system type,
molybdenum,
neodymium,
neutron activation analysis,
nickel,
niobium,
nonmetal elements,
nonmetallic mineral resources,
osmium,
oxygen,
palladium,
phosphorus,
platinum,
platinum-group elements,
plutonic rocks,
potassium,
praseodymium,
rare earth elements,
rhenium,
rhodium,
rock geochemistry,
rubidium,
ruthenium,
samarium,
scandium,
sedimentary rocks,
selenium,
silicon,
silver,
sodium,
strontium,
sulfur,
tantalum,
tellurium,
terbium,
thallium,
thorium,
thulium,
tin,
titanium,
tungsten,
uranium,
vanadium,
volcanic rocks,
x-ray fluorescence,
ytterbium,
yttrium,
zinc,
zirconium, Fewer tags
|
|