Predjama Fault in an abandoned quarry, Slovenia

The Predjama Fault is one of Slovenia's largest active faults. It is a NW-SE trending, right-lateral strike-slip fault. In this abandoned quarry, slickensides testify to the horizontal motion of the fault blocks. A wide shear zone has formed, in which the solid limestones have been crushed into smallest pieces by repeated fault motion. Further reading: Grützner et al. (2021): [Holocene surface rupturing earthquakes on the Dinaric Fault System, western Slovenia](https://se.copernicus.org/preprints/se-2021-7/). SolidEarth Discussions. Moulin et al. (2016): [The Dinaric fault system: Large‐scale structure, rates of slip, and Plio‐Pleistocene evolution of the transpressive northeastern boundary of the Adria microplate](https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016TC004188). Tectonics.