Geology of the Glarus region, Switzerland

3D Model

The glacially carved mountains above Glarus, Switzerland reveal one of Earth’s great ancient faults - the Glarus Thrust (https://en.wikipedia.org/wiki/Glarus_thrust). I downloaded the 1966 geological map of Eduard Imhof (https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~329900~90098519; georeferenced using the Georeferencer online platform) and draped it over SRTM topography visualized using multidirectional hillshade, slope, and a gamma stretch.

This block diagram was created using an experimental version of tectoplot (https://github.com/kyleedwardbradley/tectoplot/). The tectoplot command used was

tectoplot -r 8.8 9.4 46.6 47.17 -t 01s -t0 -tgam 0.7 -timg glarus_rgb.tif 0.1 -makeply topoexag 1 sidebox 5 white maptiff maxsize 800