Volume 19 Number 4
  • E-ISSN: 1365-2478



Finite‐element analysis has been used in calculating shallow temperature anomalies due to both the presence of salt domes and near‐surface faults. The results of the numerical analysis are in good agreement with field observations reported earlier by Poley and van Steveninck. The calculations show how surface emissivity must be responsible for the pronounced temperature anomalies above salt domes.

Faulting is a mechanism that disorders the layering sequence of sedimentary deposits. If the disordered sedimentary layers show notable differences in heat conductivity, the layers are thick enough and the displacements along the fault plane large enough, temperature anomalies close to the free surface may be apparent because of the surface‐emissivity mechanism.

In order to explain certain characteristic temperature anomalies where a fault reaches or approaches the free surface, an additional mechanism has to be assumed; namely a distortion of texture, and consequently a change in the heat conductivity of the rock material surrounding the fault plane. The consequences of both a reduced and an increased heat conductivity of the surroundings of a near‐surface fault have been calculated, and they show remarkable agreement with temperature anomalies observed in various parts of the world.


Article metrics loading...

Loading full text...

Full text loading...


  1. Berg, P. W., 1962, Calculus of Variations. In Handbook of Engineering Mechanics, McGraw‐Hill.
    [Google Scholar]
  2. Poley, J. Ph. & van Steveninck, J., 1970, Geothermal prospecting, Delineation of Shallow Set Domes and Surface Faults by Temperature Measurements at a Depth of Approximately 2 Meters. Geophysical Prospecting18, 666–700.
    [Google Scholar]
  3. Selig, F. & Wallick, C. G., 1966, Temperature distribution in salt domes and surrounding sediments. Geophysics31, 346–361.
    [Google Scholar]
  4. Zienkiewicz, O. C. & Cheung, Y. K., 1965, Finite elements in the solution of field problems. The Engineer, 507.
  5. Zienkiewicz, O. C. & Parekh, C. J., 1970, Transient field problems: Two‐dimensional and three‐dimensional analysis by isoparametric finite elements. Int. J. Num. Meth. in Eng., vol. 2, 61.
    [Google Scholar]
  • Article Type: Research Article
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error