Beer's Secret Ingredient: geology
As anyone in the beer business should know, water -- and what's in the water, courtesy of the geology through which it percolates -- can make all the difference in an end...
Geotechnical Design Over Karst. It's All About the Water
Karst is a type of topography which is formed over soluble rocks, such as limestone, dolomite, or gypsum. An irregular bedrock surface is typical of most karst areas, along with sinkholes,...
Geochemical Modeling of Lead in Vadose Zone
In recent years, researchers have used multicomponent reactive transport models to study the mobility of potentially toxic heavy metals in the subsurface. In this study, such a mathematical...
Robotic Options for Mining of Near-Earth Objects
The mining and processing of a Near-Earth Object (NEO) should be as simple and as robust as possible - the fewer processes and parts the better. Reliability and survivability of the total...
Behavior of Bolted Joints in 3-D Braided Composites
As composites are used more as replacements for metals in space structures, the question arises as to the most efficient way to join the components. Mechanical fasteners are a common joining...
Mineral Liberation and Beneficiation of Lunar High-Ti Mare Basalt, 71055: Digital-Imaging Analyses
Knowledge of the abundance of various lunar minerals and the ability to effectively beneficiate thee minerals are important requirements for effective utilization of lunar resources. SEM/EMP...
Flexural and Shear Behavior of Combined Concrete and Graphite Epoxy Beams
An experimental and analytical study of six graphite composite beams are presented. Four of the beams incorporated a reinforced concrete slab. The composite action and the effect of concrete...
Significance of Geochemical Characterization to Performance at Yucca Mountain, Nevada
The U.S. concept for permanent disposal of high-level radioactive waste resembles those of other countries in that it relies upon burial in a deep geologic medium. This concept relies...
Modeling Adsorption of Mixtures of Radionuclides by Zeolitized Tuff
Multi-solute sorption isotherms were measured using 'nonscents', a zeolitized volcanic tuff material from Southeast Arizona. Isotherms for the three constituent binaries, Sr-Co, Cs-Sr...
Neptunium Retardation with Tuffs and Groundwaters from Yucca Mountain
The retardation of neptunium was studied using batch sorption and column techniques. Pure mineral separates, tuffs and groundwaters from Yucca Mountain were used for these experiments....
Calcite Deposits in Fractures at Yucca Mountain, Nevada
Calcite is one of the latest-formed minerals within fractures at Yucca Mountain. Petrographic and chemical studies of these calcites have the potential, in conjunction with fluid-inclusion...
Environmental Compliance Monitoring Program for Offshore Oil and Gas Exploration and Development and Production Activities in the Pacific OCS Region
The Pacific Outer Continental Shelf Region of Minerals Management Service has recently development and is implementing an Environmental Compliance Monitoring Program. Each of the 24 oil...
Five Year Program to Evaluate Sand, Mineral and Hard Bottom Resources of the Continental Shelf off South Carolina
In July of 1992, the State of South Carolina entered into a cooperative arrangement with the Minerals Management Service (MMS) to establish a technical working group to identify and evaluate...
Statistical Analysis of Gulf of Mexico Oil Spills of Less than 1,000 Barrels
A statistical analysis of the Minerals Management Service's (MMS) historic oil-spill data associated with Gulf of Mexico OCS oil production activities is presented. The analysis focused...
Minerals Management and Conflict Resolution
Development of hydrocarbon and mineral resources in Federal waters along the Pacific coast of the United States has been a controversial issue for years. The Minerals Management Service...
Environments Parameters of Sediments and the Interface Sediment-Water in the Tacarigua Lagoon (Venezuela)
A study was made of the sedimentological characteristics of a lagoon bottom, and of the anions present at the sediment-water interface. For this analysis, the lagoon was divided into five...
Assessing Coastal Bluff Erosion Along the Oregon Coast Using Available Materials
This pilot study was initiated by Oregon's Department of Geology and Mineral Industry (DOGAMI) in an effort to determine erosion rates applicable to the coastal bluffs of Oregon's shoreline....
Modified Graphite Reference Electrodes
The primary aim of this research was to investigate the feasibility of developing an improved, more reproducible, reversible, and highly voltage invariant graphite reference half cell...
A Chemical Image Analysis Procedure as a Method for a Quantitative Modal Analysis of Clinker Minerals
In a chemical image analysis procedure, the specimen is analyzed in a scanning electron microscope in backscatter mode, thus providing an atomic number contrast. The phases are segmented...
Sulfur as a Lunar Resource
Sulfur on the Moon may prove to be a satisfactory replacement in some uses for lighter volatile elements and their compounds. Although sulfur is not richly concentrated on the Moon, it...
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