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Unconsolidated deposits
Loosely bound sediments such as sand, gravel, and silt which tend to accumulate in low areas or valleys.
Subtopics:
Clay deposits (1 items)
Gravel deposits (3 items)
Sand deposits (4 items)

Sediment geochemistry (5 items)


Results 11 - 20 of 21 listed by similarity [list alphabetically]
An interpretation of the 1977 Airborne Electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona [More info]
Complex report on the interpretation of aeromagnetic data to study hydrogeology of the San Pedro basin, Cochise County, Arizona determining geologic structure, basin fill and depth to water. Online version of a CD-ROM publication.
Aquifer basics [More info]
Links to general information on water supply by aquifers based on rock types and to principal national aquifers by name.
Biological resource status and trends: Contaminants in soil [More info]
Information concerning status and trends of biological resources, focusing on contaminants in soil
Deserts, geology and resources [More info]
Online edition of booklet describing desert geology and mineral resources.
Geochemical and mineral maps from soils of the conterminous United States [More info]
Geochemical and mineralogical maps along with a histogram, boxplot, and empirical cumulative distribution function plot for each element or mineral whose data are provided in DS-801
Laboratory manual for x-ray powder diffraction [More info]
Report presents an abridged guide for laboratory technicians and students using X-ray powder diffraction methodology to study crystalline structure and to determine the mineralogy of finer grained sediments, especially clays.
Marine aggregate resources and processes [More info]
Regional studies mapping the seafloor sedimentary character and assessing marine sand and gravel resources around the United States, to inform beach nourishment and coastal restoration, benthic habitat and sediment transport studies
Mars Global Digital Dune Database; MC-1 [More info]
Distribution and morphological character of moderate to large size dune fields on Mars from 65 degrees North to the north pole.
PDF Monitoring and analysis of sand dune movement and growth on the Navajo Nation, southwestern United States [More info]
We combine long-term records from aerial photographs, detailed mapping using survey-grade GPS, and ground-based lidar with meteorological monitoring. Sand dune migration rates are currently about 35 meters per year.
PDF The Yukon River Basin Active Layer Network: A cooperative project between the Yukon River Inter-Tribal Watershed Council and the U.S. Geological Survey [More info]
Monitoring soil temperature, soil moisture, air temperature, and overall thickness of the soil and sediment that is above the permafrost, therefore undergoing freeze-thaw cycles. Climate change may affect this active layer; we want to know how it does.
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