Fig. 37: Squares D-F/2-4 with synthetic orientation vectors of the slopes of the superficial stones. Sizes are proportional to the number of similarly oriented vectors from Fig. 35.
Drawn by R. Blumer, 1999.
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Copyright 2000 by Blumer R. and Vial F. 
Copyright 1999 by SLFA Zürich, Switzerland.
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Last updated: 29-05-2001.