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Ein automatisches Verfahren zur Interpretation magnetischer Anomalien nach der Methode der kleinsten QuadrateNormal access

Author: W. Bosum
Journal name: Geophysical Prospecting
Issue: Vol 16, No 1, March 1968 pp. 107 - 126
DOI: 10.1111/j.1365-2478.1968.tb01963.x
Organisations: Wiley
Language: English
Info: Article, PDF ( 1.01Mb )

Summary:
The interpretation of magnetic anomalies on the basis of model bodies is preferably done by making use of “trial and error” methods. These manual methods are tedious and time consuming but they can be transferred to the computer by making the required adjustments by way of the method of least squares.

The general principles of the method are described. Essential presumptions are the following:

The advantages of the method are the following:

The method was applied to the interpretation of two-dimensional ΔZ- and ΔT-anomalies.

Three types of model bodies are taken as basis of the computer program, viz. the thin dyke, infinite resp. finite in its extension downward and the circular cylinder. Only the measuring values are given to the computer. The interpretation proceeds in the following steps:

The computer produces the end values of the unknown quantities, their mean errors, and the pertaining theoretical anomalies. These end results are given to a plotting machine, which draws the measured curve, the theoretical curve and the model bodies.

Interpretation examples are given.


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