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MAPPING INDUCED POLARIZATION WITH NATURAL ELECTROMAGNETIC FIELDS FOR EXPLORATION AND RESOURCES CHARACTERIZATION BY THE MINING INDUSTRY

Description: In this quarter we completed the manufacture and bench testing of the first prototype of the MT-24/LF system to be used in the natural IP survey. The MT-24/LF will dramatically reduce field costs by simplifying field operations through the use of high accuracy GPS synchronization between wide band high accuracy (24 bit) autonomous recording systems. The simplification of field operations comes about from the elimination of the need for long lengths of telemetry cable and also from the eliminati… more
Date: July 11, 2001
Creator: Nichols, Edward
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MAPPING INDUCED POLARIZATION WITH NATURAL ELECTROMAGNETIC FIELDS FOR EXPLORATION AND RESOURCES CHARACTERIZATION BY THE MINING INDUSTRY

Description: In this first quarter we made an organizational change in the project that should allow us to more easily meet the project milestones. This change consists of designing a new systems that will allow to simplify field operation and reduce survey costs. The new system design has been completed and we are in the process of completing the manufacture and test of the first prototype. Production of the final system for the survey should be completed by end of July. The new acquisition and processing … more
Date: April 15, 2001
Creator: Nichols, Edward
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MAPPING INDUCED POLARIZATION WITH NATURAL ELECTROMAGNETIC FIELDS FOR EXPLORATION AND RESOURCES CHARACTERIZATION BY THE MINING INDUSTRY

Description: In this quarter we completed the field test of the first two prototypes of the MT-24/LF. Two prototypes were deployed in Japan as land remote reference systems during a marine MT survey. The two systems acquired data continuously for about two weeks. Data processing is in progress. The IP Target Test Area has been selected. The complete survey will be conducted in Arizona Safford-Sol prospect owned by Kennecott. This is a large porphyry copper with a significant IP response. Finally the Acquisi… more
Date: October 20, 2001
Creator: Nichols, Edward
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MAPPING INDUCED POLARIZATION WITH NATURAL ELECTROMAGNETIC FIELDS FOR EXPLORATION AND RESOURCES CHARACTERIZATION BY THE MINING INDUSTRY

Description: The objectives of this project is to demonstrate the use of a new geophysical system to collect economically competitive induced polarization (IP) data using natural electromagnetic (EM) field as a source. The proposed technology uses naturally-existing EM fields, which provides greater depth of exploration and significant economic, energy, environmental and safety benefits.
Date: January 15, 2002
Creator: Nichols, Edward
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MAPPING INDUCED POLARIZATION WITH NATURAL ELECTROMAGNETIC FIELDS FOR EXPLORATION AND RESOURCES CHARACTERIZATION BY THE MINING INDUSTRY

Description: In this quarter we continued the processing of the Safford IP survey data. The processing identified a time shift problem between the sites that was caused by a GPS firmware error. A software procedure was developed to identify and correct the shift, and this was applied to the data. Preliminary estimates were made of the remote referenced MT parameters, and initial data quality assessment showed the data quality was good for most of the line. The multi-site robust processing code of Egbert was… more
Date: May 3, 2002
Creator: Nichols, Edward
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Frequency Electromagnetic Impedance Imaging for Vadose Zone and Groundwater Characterization

Description: A geophysical experiment is described for characterizing the clastic dike systems, which are ubiquitous within the vadose zone at the Hanford Nuclear Reservation. because the dikes possess a significant electrical contrast from the insulating host medium, we have applied controlled source audio magnetotelluric (CSAMT) measurements to map their geometric extent and to further clarify if the dike complex acts as a conduit for contaminant transport within the vadose zone. Because of cost and weak … more
Date: June 5, 2003
Creator: Newman, Greory A.; Alumbaugh, David L.; Hoversten, Michael & Nichols, Edward
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Frequency Electromagnetic Impedance Imaging for Vadose Zone and Groundwater Characterization

Description: Accurate description of transport pathways on the gross scale, the location of contamination, and characterization of heterogeneity within the vadose zone, are now realized as vital for proper treatment, confinement and stabilization of subsurface contamination at Department of Energy (DOE) waste sites. Electromagnetic (EM) methods are ideal for these tasks since they are directly sensitive to the amount of fluid present in porous media, as well as fluid composition. At many DOE sites it is nec… more
Date: June 15, 2001
Creator: Newman, Gregory A.; Nichols, Edward; Alumbaugh, David L. & Hoversten, G. Michael
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Frequency Electromagnetic Impedance Imaging for Vadose Zone and Groundwater Characterization

Description: Accurate description of transport pathways on the gross scale, the location of contamination, and characterization of heterogeneity within the vadose zone, are now realized as vital for proper treatment, confinement and stabilization of subsurface contamination at Department of Energy (DOE) waste sites. Electromagnetic (EM) methods are ideal for these tasks since they are directly sensitive to the amount of fluid present in porous media, as well as fluid composition. At many DOE sites it is nec… more
Date: June 7, 2002
Creator: Newman, Gregory A.; Nichols, Edward; Alumbaugh, David L. & Hoversten, G. Michael
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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