3-D Structural Geology
Exercise 3.7.1
Contouring Styles
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Use the data from the Weasel Roost Formation (Fig. 3.26) to try out different contouring techniques
and to see the effect of trend biasing. Use interpretive contouring and assume a surface with no
grain. Contour by parallel contouring: (a) assuming a northwest-southeast grain; (b) assuming a
northeast-southwest grain. Draw crestal and trough traces on the structure contour maps just completed. Use interpretive contouring and assume a northeast-southwest grain. Define a TIN using
greedy triangulation and contour by linear interpolation.
Fig. 3.26. Map of elevations (feet or meters) of the top of the Weasel Roost Formation
R. H. Groshong, 3-D Structural Geology, 2nd ed., © Springer-Verlag 2006