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Field Test of Electromagnetic Geophysical Techniques for Locating Simulated In situ Mining Leach Solution.

PB94183043

Publication Date	1994
Personal Author	Tweeton, D. R.; Hanson, J. C.; Friedel, M. J.; Sternberg, B. K.; Dahl, L. J.
Page Count	40
Abstract	The U.S. Bureau of Mines, the University of Arizona, Sandia National Laboratory, and Zonge Engineering and Research, Inc., conducted cooperative field tests of six electromagnetic geophysical methods to compare their effectiveness in locating a brine solution simulating in situ leach solution or a high-conductivity plume of contamination. The brine was approximately 160 meters below the surface. The test site was the University's San Xavier experimental mine near Tucson, Arizona. Geophysical surveys using surface and surface-borehole time-domain electromagnetics (TEM), surface controlled source audio-frequency magnetotellurics (CSAMT), surface-borehole frequency-domain electromagnetics (FEM), crosshole FEM and surface magnetic field ellipticity were conducted before and during brine injection.
Keywords	Geophysics Solution mining Leaching Environmental monitoring Field tests Geophysical surveys Boreholes Electromagnetic induction Telluric current exploration Test methods Brines Plume detection In situ mining TEM(Time-domain electromagnetic) CSAMT(Controlled-source audiofrequency magnetotellurics) FEM(Frequency-domain electromagnetic) San Xavier experimental mine Tuscon(Arizona)
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68C - Solid Wastes Pollution & Control 68D - Water Pollution & Control
Corporate Authors	Bureau of Mines, Minneapolis, MN. Minneapolis Mining Research Center.; Arizona Univ., Tucson.; BHP Minerals, Herndon, VA.
Supplemental Notes	Prepared in cooperation with BHP Minerals, Herndon, VA. and Arizona Univ., Tucson.
Document Type	Technical Report
Title Note	Rept. of investigations/1994.
NTIS Issue Number	199419

Field Test of Electromagnetic Geophysical Techniques for Locating Simulated In situ Mining Leach Solution.

Field Test of Electromagnetic Geophysical Techniques for Locating Simulated In situ Mining Leach Solution.
PB94183043

Publication Date	1994
Personal Author	Tweeton, D. R.; Hanson, J. C.; Friedel, M. J.; Sternberg, B. K.; Dahl, L. J.
Page Count	40
Abstract	The U.S. Bureau of Mines, the University of Arizona, Sandia National Laboratory, and Zonge Engineering and Research, Inc., conducted cooperative field tests of six electromagnetic geophysical methods to compare their effectiveness in locating a brine solution simulating in situ leach solution or a high-conductivity plume of contamination. The brine was approximately 160 meters below the surface. The test site was the University's San Xavier experimental mine near Tucson, Arizona. Geophysical surveys using surface and surface-borehole time-domain electromagnetics (TEM), surface controlled source audio-frequency magnetotellurics (CSAMT), surface-borehole frequency-domain electromagnetics (FEM), crosshole FEM and surface magnetic field ellipticity were conducted before and during brine injection.
Keywords	Geophysics Solution mining Leaching Environmental monitoring Field tests Geophysical surveys Boreholes Electromagnetic induction Telluric current exploration Test methods Brines Plume detection In situ mining TEM(Time-domain electromagnetic) CSAMT(Controlled-source audiofrequency magnetotellurics) FEM(Frequency-domain electromagnetic) San Xavier experimental mine Tuscon(Arizona)
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68C - Solid Wastes Pollution & Control 68D - Water Pollution & Control
Corporate Authors	Bureau of Mines, Minneapolis, MN. Minneapolis Mining Research Center.; Arizona Univ., Tucson.; BHP Minerals, Herndon, VA.
Supplemental Notes	Prepared in cooperation with BHP Minerals, Herndon, VA. and Arizona Univ., Tucson.
Document Type	Technical Report
Title Note	Rept. of investigations/1994.
NTIS Issue Number	199419