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Swiss Journal of Geosciences

Table 1 Relative-area percentages of structural elements for the four different outcrops of the Main Fault in the Mont Terri rock laboratory

From: Tectonic structure of the “Main Fault” in the Opalinus Clay, Mont Terri rock laboratory (Switzerland)

Outcrop

Fault zone width (m)

Scaly clay (incl. microfolds + S–C bands) (%)

Isolated slickensides (%)

Microfolds (%)

S–C bands (%)

Ga08 W

4.5

53

47

–

–

Ga08 E

2.7

42

58

5

1

Ga98 W

1.0

37

63

2

4

Ga98 E

0.9

20

80

4

3

  1. The entire area of the Main Fault at individual outcrops is equal to 100%. Percentage of scaly clay area includes anastomosing scaly clay and the inherent zones of microfolding and S–C bands. For the outcrop in Ga08W, the non-visible part of the Main Fault was included in the total surface area for consistency
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