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X-ray Diffraction Studies of the
A multidisciplinary approach to research studies of sedimentary rocks and their constituents and the evolution of sedimentary basins, both ancient and modern.
Robert Owen
None
Narrative of the Life of Frederick Douglass
Narrative of the Life of Frederick Douglass is an 1845 memoir and treatise on abolition written by famous orator and former slave Frederick Douglass. It is generally held to be the most famous of a number of narratives written by former slaves during the same period. In factual detail, the text describes the events of his life and is considered to be one of the most influential pieces of literature to fuel the abolitionist movement of the early 19th century in the United States.Narrative of the Life of Frederick Douglass encompasses eleven chapters that recount Douglass's life as a slave and his ambition to become a free man.
Geologie Controls on Radon
Indice del volume: Preface p.v; 1. Geology of the Radon in the United States p.1; 2. Sensitivity of Soil Radon to Geology and the Distribution of Radon and Uranium in the Hylas Zone Area, Virginia p.17; 3. Geologic and Environmental Implications of High Soil-Gas Radon Concentrations in the Great Valley, Jefferson and Berkeley Counties, West Virginia p.29; 4. Soil Radon Distribution in Glaciated Areas: an Example from the New Jersey Highlands p.45; 5. Radon in the Coastal Plain of Texas, Alabama, and the New Jersey p.53; 6. Effects of Weather and Soil Characteristics on Temporal Variations in Soil-Gas Radon Concentrations p.65; 7. A Theoretical Model for the Flux of Radon from Rock to Ground Water p.73; 8. The Influence of Season, Bedrock, Overburden, and House Construction on Airborne Levels of Radon in Maine Homes p.79.
Uranium and Other Elements in Colorado Rocky Mountain Wetlands
Wetlands have a well-documented capacity for extracting metals, particularly uranium, from ground and surface waters containing only very dilute concentrations of the metals. The plutonic and volcanic rocks of the Colorado Rockies contain uranium concentrations high enough to serve as a uranium source to waters that feed wetlands. Reconnaissance sampling was conducted in 145 montane and subalpine wetlands in Colorado to determine how many of them are uraniferous. Forty-six percent of the wetlands showed the presence of moderate or high concentrations of uranium, but unless the price of uranium substantially increases none of the deposits is of economic value. Many of the processes responsible for concentrating uranium and other metals in organic-rich sediments of wetlands are reversible, however, and serious environmental consequences may occur if anthropogenic or natural disturbances change the chemical conditions in a wetland sufficiently to release uranium or other metals.
