Lithological nature of the subduction channel: Insights from the Karabakh suture zone (Lesser Caucasus) and general comparisons

- Lithological nature of interplate boundary (subduction channel) from field analysis.
- Subduction channel is about 100-200 m width at 10 km depth.
- The Channel comprises blocks of lower (oceanic crust) and not upper compartments.
- Vertical veins opened by creep with local fluid, horizontal veins with deep fluid.
- Local fluid is 200 °C - deep fluid 300 °C (connected during co-seismic displacement).