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Swiss Journal of Geosciences

Table 1 Thickness ratios of prominent incompetent/competent units determined at different locations from south to north

From: Inherited tectonic structures controlling the deformation style: an example from the Helvetic nappes of the Eastern Alps

  1. The majority of the values obtained are around 0.5 and they generally decrease towards the north due to the predominance of carbonates in the north of the Helvetic shelf. Solely the ratio of the Bommerstein Formation to the Quinten Limestone in the Kanisfluh area yields a number considerably higher than 0.5 that is indicative of disharmonic folding. Data for calculating thickness ratios were taken from Heim (1919), Heim et al. (1933), Felber and Wyssling (1979), Müller (1985), Wyssling (1986), Colins et al. (1989), and Goldscheider (2002). For locations see Figs. 5 and 8
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