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Unconsolidated deposits
Loosely bound sediments such as sand, gravel, and silt which tend to accumulate in low areas or valleys.
This category is also used for alluvium, eolian sediments, loess, sediments, and surficial deposits.
Subtopics:
Gravel deposits (3 items)
Sand deposits (2 items)

Sediment geochemistry (21 items)
Results 1 - 10 of 31 listed by similarity [list alphabetically]
Geochemical analysis of soils and sediments, Coeur d'Alene drainage basin, Idaho: Sampling, analytical methods, and results [New Window]
Chemical composition of sediments and soils are of interest because of the potential for human and wildlife health impacts from high metal contents due to over 100 years of mining activity.
Geochemistry of sediments in the US from the PLUTO database [New Window]
Geochemical data for unconsolidated sediments (stream sediments, lake sediments, etc.) collected in the US and analyzed by the USGS. These data were originally entered in the PLUTO database, which is now merged into the National Geochemistry Database.
Geochemistry of stream sediments in the US from the NURE-HSSR database [New Window]
National-scale geochemical analysis of stream sediments and soils in the US collected and analyzed under the National Uranium Resource Evaluation program.
Geochemistry of unconsolidated sediments in the US from the RASS database [New Window]
Geochemical data for unconsolidated sediments (stream sediments, lake sediments, etc.) collected by USGS personnel and analyzed by USGS. These data were part of the Rock Analysis Storage System and are now merged into the National Geochemistry Database.
Lead-rich sediments, Coeur d'Alene River valley, Idaho; Area, volume, tonnage, and lead content: Surface-sediment geochemical data [New Window]
Tables containing locations and lead concentrations of 998 surface-sediment geochemical sample sites
Uranium in surface waters and sediments affected by historical mining in the Denver West 1:100,000 quadrangle, Colorado [New Window]
Geochemical analysis of stream waters and sediments in mountainous areas immediately west of Denver, Colorado, to evaluate the concentration and distribution of uranium-bearing acid drainage originating from historical mines
Analytical Results and Sample Locations of Reanalyzed NURE Stream-Sediment and Soil Samples for the Humboldt River Basin Mineral-Environmental Assessment, Northern Nevada [New Window]
The U.S. Geological Survey (USGS) and the Bureau of Land Management (BLM) collected stream-sediment and soil samples in order to evaluate the geochemistry of the Humboldt River Basin.
Analytical results for stream sediment and soil samples from the Commonwealth of Puerto Rico, Isla de Culebra, and Isla de Vieques [New Window]
Geochemical data from 2560 stream sediment samples collected in Puerto Rico, 421 soil samples collected on Isla de Vieques, and 35 soil samples were collected on Isla de Culebra, analyzed by semiquantitative spectrographic methods.
Bedrock and soil geochemistry from Voyageurs National Park, Minnesota [New Window]
Analyses to establish the background and baseline geochemistry for bedrock and soil in the region, and to determine terrestrial mercury sources and sinks in the park
Bedrock soil and lichen geochemistry from Isle Royale National Park, Michigan [New Window]
Geochemical analyses conducted as part of a larger study of the Midcontinent Rift in the Lake Superior region.
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