Conference Papers
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Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Fluorine in Colorado oil shale Fluorine in Colorado oil shale
Oil shale from the lower part of the Eocene Green River Formation in the Piceance Creek Basin, Colorado, averages 0.13 weight percent fluorine, which is about twice that found in common shales, but is the same as the average amount found in some oil shales from other parts of the world. Some fluorine may reside in fluorapatite; however, limited data suggest that cryolite may be...
Authors
John R. Dyni
The use of a spatial and tabular data base for order-three soil surveys The use of a spatial and tabular data base for order-three soil surveys
No abstract available.
Authors
E. H. Horvath, A. A. Klingebiel, D. G. Moore
A new isostatic residual gravity map of the conterminous United States A new isostatic residual gravity map of the conterminous United States
In order to display more clearly the gravity anomalies caused by bodies of geologic interest in the crust, a new colored isostatic residual gravity map of the conterminous United States has been prepared using the gravity data set compiled for the Gravity Anomaly Map of the United States (SEG, 1982). The isostatic residual map is based on an Airy-Heiskanen model of local compensation...
Authors
Robert W. Simpson, Robert C. Jachens, Richard W. Saltus, Richard J. Blakely
Planning considerations for recording the next major earthquake in California Planning considerations for recording the next major earthquake in California
No abstract available.
Authors
Roger D. Borcherdt, B. A. Bolt
A comparison of eruption and magma reservoirs of Krakatau, Mount St Helens and Galunggung A comparison of eruption and magma reservoirs of Krakatau, Mount St Helens and Galunggung
No abstract available
Authors
C. G. Newhall, R.W. Decker, A.S. Sumartadipura, R.I. Tilling, D. W. Peterson
ANALYZING NUMERICAL ERRORS IN DOMAIN HEAT TRANSPORT MODELS USING THE CVBEM. ANALYZING NUMERICAL ERRORS IN DOMAIN HEAT TRANSPORT MODELS USING THE CVBEM.
Besides providing an exact solution for steady-state heat conduction processes (Laplace Poisson equations), the CVBEM (complex variable boundary element method) can be used for the numerical error analysis of domain model solutions. For problems where soil water phase change latent heat effects dominate the thermal regime, heat transport can be approximately modeled as a time-stepped...
Authors
T. V. Hromadka
ANNIE - INTERACTIVE PROCESSING OF DATA BASES FOR HYDROLOGIC MODELS. ANNIE - INTERACTIVE PROCESSING OF DATA BASES FOR HYDROLOGIC MODELS.
ANNIE is a data storage and retrieval system that was developed to reduce the time and effort required to calibrate, verify, and apply watershed models that continuously simulate water quantity and quality. Watershed models have three categories of input: parameters to describe segments of a drainage area, linkage of the segments, and time-series data. Additional goals for ANNIE include...
Authors
Alan M. Lumb, John L. Kittle
Application of the 1:2,000,000-scale data base: A National Atlas sectional prototype Application of the 1:2,000,000-scale data base: A National Atlas sectional prototype
A study of the potential to produce a National Atlas sectional prototype from the 1:2,000,000-scale data base was concluded recently by the National Mapping Division, U. S. Geological Survey. This paper discusses the specific digital cartographic production procedures involved in the preparation of the prototype map, as well as the theoretical and practical cartographic framework for the...
Authors
Donna M. Dixon
APPLICATION OF THE AERIAL PROFILING OF TERRAIN SYSTEM. APPLICATION OF THE AERIAL PROFILING OF TERRAIN SYSTEM.
The U. S. Geological Survey has completed the performance evaluation flight tests of the Aerial Profiling of Terrain System (APTS) and is now performing a series of application tests to determine its effectiveness and efficiency as an earth-science data collection tool. These tests are designed to evaluate the APTS at such tasks as positioning water wells, testing reliability of older...
Authors
Edward J. Cyran