Fluid inclusion microthermometry to calibrate vitrinite reflectance (between 50 and 270 °C), illite Kübler-Index data and the diagenesis/anchizone boundary in the external part of the Central Alps

It is envisaged that this temperature limit may be indicative for external orogenic settings at normal to slightly hyperthermal heat flow. This will help to a better understanding of correlating organic matter versus clay mineral indices to determine geothermal settings for basic research and exploration.