Geology Reference
In-Depth Information
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Figure 16.4.11. Temperature surface generated from temperature data obtained at 43 thermocouple temperature
wells at a spacing of 5m. Temperatures were taken at 0.3-m-depth increments. Surface represents highest
temperature at any one location. From Chaiken et al. 1996.
localized nature of subsurface combustion (Figure 16.4.11.). It shows a primary combustion zone adjacent to the
southern slope and additional heated areas to the northwest and to the east of the primary zone. Temperatures were
obtained by inserting a TC probe into the TC well to the appropriate depth, allowing the probe to reach equilibrium,
recording the temperature, and then lowering the probe to the next predetermined point. Even for a relatively small
site, with computer processing of the data, this was a labor intensive process. However, it had the advantage of
providing a three-dimensional view of the heated areas and also showed visual evidence of the effect of the
cryogenic injection (Figure 16.4.12.).
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Figure 16.4.12. Temperature surface generated from temperature data obtained at Midvale waste bank after
injection of cryogenic slurry. From Chaiken et al. 1996.
