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Preliminary Efforts to Couple TETRAD with Geophysics Models

Description: The Geothermal Program at the Idaho National Engineering and Environmental Laboratory is enhancing our reservoir simulation capabilities by writing new subroutines with TETRAD that write necessary files for use with SAIC's geophysics models, including DC Resistivity, SP, and microgravity. This is part of long-term efforts to develop reservoir models that take advantage of various observations that are - or can be - made on both existing fields or during exploration efforts. These new routines w… more
Date: January 1, 2002
Creator: Shook, George Michael; Renner, Joel Lawrence & Bloomfield, Kevin Kit
Partner: UNT Libraries Government Documents Department
open access

The Use of Radar Methods to Determine Moisture Content in the Vadose Zone

Description: Water content is a critical parameter affecting both liquid-phase and vapor-phase contaminant transport in the vadose zone. This means that accurate estimates of in situ water content must be obtained in order to design for the appropriate handling or remediation of a contaminated region of the vadose zone. Traditional methods of sampling the subsurface by drilling and/or direct sampling are very time consuming, limited in terms of spatial coverage, and have the associated risk of contacting an… more
Date: December 28, 2003
Creator: Knight, Rosemary
Partner: UNT Libraries Government Documents Department
open access

Geochemical Controls on Nuclear Magnetic Resonance Measurements

Description: OAK-B135 Our research objectives are to determine, through an extensive set of laboratory experiments, the effect of the specific mineralogic form of iron and the effect of the distribution of iron on proton nuclear magnetic resonance (NMR) relaxation mechanisms. In the first nine months of this project, we have refined the experimental procedures to be used in the acquisition of the laboratory NMR data; have ordered, and conducted preliminary measurements on, the sand samples to be used in the… more
Date: November 11, 2003
Creator: Knight, Rosemary; Prasad, Manika & Keating, Kristina
Partner: UNT Libraries Government Documents Department
open access

A Strategy for Monitoring of Geologic Sequestration of CO2

Description: Monitoring of geologic sequestration projects will require the measurement of many different parameters and processes at many different locations at the surface and in the subsurface. The greatest need for technology development is for monitoring of processes in the subsurface in the region between wells. The approach to fitting this need is to build upon decades of experience in use of geophysics in the oil and gas industry. These methods can be optimized for CO2 monitoring, and customized and… more
Date: April 17, 2000
Creator: Myer, Larry R.
Partner: UNT Libraries Government Documents Department
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Final Report: Geological, Geophysical, Chemical, and Hydrological Investigations of the Sand Springs Range, Fairview Valley, and Fourmile Flat, Churchill County, Nevada

Description: Report on an evaluation of the Sand Springs Range as a possible location for an underground nuclear study (Shoal Event). Various tests to determine the site's suitability included aerial photography and mapping of the area through various means; drilling and bulldozing to conduct mineralogical and other physical evaluations; gravity, aeromagnetic, and refraction surveys; and studies related to the hydrology of the location and surrounding areas.
Date: April 26, 1965
Creator: Nevada. Bureau of Mines.
Partner: UNT Libraries Government Documents Department

Plates 1-12: Final Report: Geological, Geophysical, Chemical, and Hydrological Investigations of the Sand Springs Range, Fairview Valley, and Fourmile Flat, Churchill County, Nevada

Description: Plates documenting results of some tests performed during the site evaluation of the Sand Springs Range including aerial photography, various types of mapping and surveying of the physical and hydrological aspects of the location, and other supplementary materials.
Date: April 26, 1965
Creator: Nevada. Bureau of Mines.
Partner: UNT Libraries Government Documents Department
open access

Special Issue on geophysics applied to detection and discrimination of unexploded ordnance

Description: Unexploded ordnance (UXO) presents serious problems in Europe, Asia, as well as in the United States. Explosives and mines from World War I and World War II still turn up at European and Asian construction sites, backyard gardens, beaches, wildlife preserves and former military training grounds. The high rate of failure among munitions from 60-90 years ago is cited as one of the main reasons for such a high level of contamination. Apart from war activities, military training has resulted in man… more
Date: January 15, 2007
Creator: Gasperikova, Erika; Gasperikova, Erika & Beard, Les P.
Partner: UNT Libraries Government Documents Department
open access

Geophysical Investigations of Archaeological Resources in Southern Idaho

Description: At the Idaho National Laboratory and other locations across southern Idaho, geophysical tools are being used to discover, map, and evaluate archaeological sites. A variety of settings are being explored to expand the library of geophysical signatures relevant to archaeology in the region. Current targets of interest include: prehistoric archaeological features in open areas as well as lava tube caves, historical structures and activity areas, and emigrant travel paths. We draw from a comprehens… more
Date: October 1, 2005
Creator: Pace, Brenda Ringe; Heath, Gail; Scott, Clark & McDaniel, Carlan
Partner: UNT Libraries Government Documents Department
open access

Regional geology and geophysics of the Jemez Mountains

Description: The western margin of the Rocky Mountain tectonic belt is the initial site for the Los Alamos Geothermal Project. lgneous activity in the area culminated with the formation of a collapsed volcanic caldera and the deposition of thick beds of tuff. Geophysical studies indicate that the region is one of relatively highterrestrial heat flow, low-crustal density, low-crustal seismic velocities, low-crustal magnetoelectric impedance, and thin crust. 34 references. (auth)
Date: August 1, 1973
Creator: West, Francis G.
Partner: UNT Libraries Government Documents Department
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Fall 2007 American Geophysical Union Meeting Student Travel Support for Environmental Nanomaterials Session (#B35) (December 10-14, 2007)

Description: The purpose of award no. DE-FG02-08ER15925 was to fund travel for students to present at the Fall 2007 American Geophysical Meeting. This was done successfully, and five students (Bin Xie, Qiaona Hu, Katie Schreiner, Daria Kibanova, and Frank-Andreas Weber) gave excellent oral and poster presentations at the meeting. Provided are the conference abstracts for their presentations.
Date: October 1, 2007
Creator: Michael F. Hochella, Jr.
Partner: UNT Libraries Government Documents Department
open access

Crustal structure of China and adjacent areas: a final report of the detailed compilation of data and results

Description: In geophysical terms, China is a ''data rich'' country. However it is often very difficult for Western scientists to access the available information or identify individuals responsible for program development. The USGS has largely bypassed this bottleneck by virtue of more than two decades of collaborative research based on an official Protocol Agreement.
Date: June 4, 1998
Creator: Mooney, W D
Partner: UNT Libraries Government Documents Department
open access

Borehole Data-Collection Methods Applicable for the Regional Observation and Monitor Well Program, Southwest Florida Water Management District

Description: From introduction: This report presents some borehole data-collection methods that can be used during the drilling of ROMP or other wells where data collection is a prime objective. Hydraulic, water-quality, and geophysical data-collection methods applicable to the hydrogeology of west-central Florida are emphasized.
Date: September 1981
Creator: Hickey, John J.
Partner: UNT Libraries Government Documents Department
open access

Input to the NSF Study on Computational Requirements in Geosciences

Description: The Computational Physics Group of the Earth Sciences Division focuses much of its effort on improving current understanding of the response of geologic media to strong shock waves, and on the interaction of those waves with underground structures. Two codes have been developed and used to achieve these objectives: LDEC and GEODYN. Both codes are three-dimensional and massively parallel, and they have both been used on LLNLs high performance computing platforms to advance the state of the art i… more
Date: December 13, 2004
Creator: Antoun, T; Lomov, I & Morris, J
Partner: UNT Libraries Government Documents Department
open access

Improved characterization through joint hydrogeophysical inversion: Examples of three different approaches

Description: With the increasing application of geophysical methods to hydrogeological problems, approaches for obtaining quantitative estimates of hydrogeological parameters using geophysical data are in great demand. A common approach to hydrogeological parameter estimation using geophysical and hydrogeological data is to first invert the geophysical data using a geophysical inversion procedure, and subsequently use the resulting estimates together with available hydrogeological information to estimate a … more
Date: July 1, 2004
Creator: Linde, Niklas; Chen, Jinsong; Kowalsky, Michael; Finsterle,Stefan; Rubin, Yoram & Hubbard, Susan
Partner: UNT Libraries Government Documents Department
open access

Seismic Determination of Reservoir Heterogeneity: Application to the Characterization of Heavy Oil Reservoirs

Description: The objective of the project was to examine how seismic and geologic data can be used to improve characterization of small-scale heterogeneity and their parameterization in reservoir models. The study focused on West Coalinga Field in California. The project initially attempted to build reservoir models based on different geologic and geophysical data independently using different tools, then to compare the results, and ultimately to integrate them all. We learned, however, that this strategy w… more
Date: February 1, 2005
Creator: Imhof, Matthias G. & Castle, James W.
Partner: UNT Libraries Government Documents Department
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