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Report on the reconnaissance resistivity survey in the East Mesa area, Imperial County, California for U. S. Department of the Interior, Bureau of Reclamation
A section of notes on geothermal exploration using the resistivity method precedes the main body of the paper. Field data from the Broadlands Area of New Zealand, Java, and the Imperial Valley, California are included. The reconnaissance resistivity survey recently completed in the East Mesa Area confirmed that a broad zone of low resistivities at depth extends through the area in a NNW direction. The interpretation of the resistivity data and the location of the resistivity lows at depth is much less definite in the Imperial Valley than it is in other areas of geothermal exploration. This is due to the extremely low background level of resistivities. The low resistivities in the Imperial Valley are due to the high porosity of the sediments and the high salinity of the solutions contained within the rock. The expected decrease in resistivity due to elevated temperature is much more difficult to detect in this environment. Edges of the zones of low resistivities have been delineated in almost all directions. (JGB)
Date:
January 21, 1974
Creator:
Bell, B.S. & Hallof, P.G.
Object Type:
Report
System:
The UNT Digital Library
Leaching of radioactive nuclides from cement grouts. Part II
The determination of the leaching rate of radioactive /sup 137/Cs from a cement grout should the grout be contacted by water is necessary for environmental protection. The effect of the leachant turnover rate on /sup 137/Cs leaching rates was evaluated with batch and continuous (modified Soxhlet extractor) modes of experimentation. Three additives (Grundite, potter's clay, and Conasauga shale) were compared in terms of capability of radioactive isotope retention, while two leachants (tap and distilled water) were investigated. The Soxhlet extractor experiment resulted in the highest rate of leaching, and Conasauga shale was found the best additive for /sup 137/Cs immobilization. Tap water used as leachant was more effective than distilled water. Data were analyzed using models involving isotopic diffusion in the grout and involving diffusion plus a time dependent boundary condition at the interface of grout specimen and leachant.
Date:
October 21, 1974
Creator:
Stanley, W. T.; Avgerinos, G. F.; Gonzalez, B. & Hemley, P. J.
Object Type:
Report
System:
The UNT Digital Library
Rare earths and ion exchange
None
Date:
March 21, 1974
Creator:
Sisson, D. H. & Mode, V. A.
Object Type:
Article
System:
The UNT Digital Library
Suspended particle interactions and uptake in terrestrial plants
None
Date:
August 21, 1974
Creator:
Vaughan, B.E.
Object Type:
Article
System:
The UNT Digital Library
Simple model of D$sub 2$--DT--T$sub 2$ equilibrium at cryogenic temperatures
None
Date:
October 21, 1974
Creator:
Souers, P. C.; Hickman, R. G.; Wade, W. Z. & Tsugawa, R. T.
Object Type:
Report
System:
The UNT Digital Library
Scintillation response of a single lithium fluoride crystal
None
Date:
November 21, 1974
Creator:
Kloepping, R.J.
Object Type:
Article
System:
The UNT Digital Library
Electron excitation of high pressure Ar, Kr, and Xe
None
Date:
May 21, 1974
Creator:
Ebert, P.J.; Koehler, H.A.; Ferderber, L.J. & Redhead, D.L.
Object Type:
Article
System:
The UNT Digital Library
Instrumentation for x-ray diagnostics of plasmas
None
Date:
October 21, 1974
Creator:
Violet, C. E.
Object Type:
Article
System:
The UNT Digital Library