Conference Papers
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TSX-PLUS MULTI-TASKING UPGRADE FOR THE NICOLET L-11 POWDER DIFFRACTION SYSTEM. TSX-PLUS MULTI-TASKING UPGRADE FOR THE NICOLET L-11 POWDER DIFFRACTION SYSTEM.
In August of 1982, a single-user, dual-translator, automated powder diffraction system was purchased by the Denver Research Institute for use on project work in the Chemical and Materials Sciences Division. Within a short period of time, the system had already become saturated with users. Scheduling conflicts arose. In view of these problems, an answer was sought in the form of hardware...
Authors
J. Fitzpatrick, David L. Queen
U. S. G. S. MODULAR GROUND-WATER FLOW MODEL: DESIGNED TO BE UNDERSTOOD AND ADAPTED. U. S. G. S. MODULAR GROUND-WATER FLOW MODEL: DESIGNED TO BE UNDERSTOOD AND ADAPTED.
The paper discusses a carefully designed model program and its complementary complete description of all of the physical and mathematical concepts used in the model. The model program consists of a series of independent subroutines called modules. Modules are grouped by hydrologic function into 'packages. ' A report describing the model was written in three levels. At one level the...
Authors
Michael G. McDonald, Arlen W. Harbaugh
URBAN STORMWATER INVESTIGATIONS BY THE U. S. GEOLOGICAL SURVEY. URBAN STORMWATER INVESTIGATIONS BY THE U. S. GEOLOGICAL SURVEY.
Urban stormwater hydrology studies in the U. S. Geological Survey are currently focused on compilation of national data bases containing flood-peak and short time-interval rainfall, discharge and water-quality information for urban watersheds. Current data bases, updated annually, are nationwide in scope. Supplementing the national data files are published reports of interpretative...
Authors
Marshall E. Jennings
VOLATILIZATION OF ALKYLBENZENES FROM WATER. VOLATILIZATION OF ALKYLBENZENES FROM WATER.
Volatilization is a physical process of importance in determining the fate of many organic compounds in streams and rivers. This process is frequently described by the conceptual-two-film model. The model assumes uniformly mixed water and air phases separated by thin films of water and air in which mass transfer is by molecular diffusion. Mass-transfer coefficients for the water and air...
Authors
R. E. Rathbun, D. Y. Tai
WATER CHEMISTRY AND MINERALOGY OF MORGAN AND GROWLER HOT SPRINGS, LASSEN KGRA, CALIFORNIA. WATER CHEMISTRY AND MINERALOGY OF MORGAN AND GROWLER HOT SPRINGS, LASSEN KGRA, CALIFORNIA.
Because these springs contain substantial amounts of dissolved chloride, halite and sylvite are found above the water level as evaporitic deposits, along with gypsum. One spring is depositing pyrite that contains significant amounts of arsenic, antimony, and thallium. A yellow compound, composed of arsenic and sulfur, is being deposited in another spring. Arsenic and antimony...
Authors
J. Michael Thompson, Terry E.C. Keith, Jerry J. Consul
WATER INFORMATION AVAILABLE FROM THE U. S. GEOLOGICAL SURVEY. WATER INFORMATION AVAILABLE FROM THE U. S. GEOLOGICAL SURVEY.
As a part of the Geological Survey's program of releasing water data to the public, two large-scale computerized systems are maintained. The National Water Data Storage and Retrieval System was developed to provide more effective and efficient management of data-releasing activities and provides for the processing, storage, and retrieval of surface-water, ground-water and water-quality...
Authors
Charles R. Showen
YELLOWSTONE MAGMATIC-HYDROTHERMAL SYSTEM, U. S. A. YELLOWSTONE MAGMATIC-HYDROTHERMAL SYSTEM, U. S. A.
At Yellowstone National Park, the deep permeability and fluid circulation are probably controlled and maintained by repeated brittle fracture of rocks in response to local and regional stress. Focal depths of earthquakes beneath the Yellowstone caldera suggest that the transition from brittle fracture to quasi-plastic flow takes place at about 3 to 4 km. The maximum temperature likely to...
Authors
R.O. Fournier, A.D. Pitt
Morphology and evolutionary significance of Perissonoe, a new marine diatom genus Morphology and evolutionary significance of Perissonoe, a new marine diatom genus
No abstract available.
Authors
George W. Andrews, V. A. Stoelzel
Spatial analysis requirements for a federal mineral land information system Spatial analysis requirements for a federal mineral land information system
No abstract available.
Authors
James A. Sturdevant, Richard L. Kleckner
Map revision using digital image processing techniques Map revision using digital image processing techniques
No abstract available.
Authors
E. Lynn Usery, R. Welch
Geographic variation in ground shaking as a function of changes in near-surface properties and geologic structure near Los Angeles, California Geographic variation in ground shaking as a function of changes in near-surface properties and geologic structure near Los Angeles, California
No abstract available.
Authors
A. M. Rogers, Ladislaus C. Tinsley, Roger D. Borcherdt