Abstract
Time series analysis (autocorrelation, cross correlation, spectral analysis)is used to reconstruct tectonic structures from geochemical drill hole log data. After segmentation of a log one obtains typical patterns of significant correlations by cross correlation analysis. These patterns can be included in a “log-segment-correlation matrix” (LSCM)and are interpreted as repetitions caused by fractures or as folds extending over one or more segments. Smaller tectonic structures can be detected by spectral analysis. Examples are given from Pb-Zn exploration drill holes in the Paleozoic of Graz (Austria).
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