Variations in the transient prograde geothermal gradient from chloritoid-staurolite equilibria: a case study from the Barrovian and Buchan-type domains in the Bohemian Massif

Abstract

This work is focused on thermodynamic modelling of chloritoid-staurolite transition in terms of pressure dependence. This approach is applied to Moravo-Silesian belt and show variable barric evolutions along strike and across the Moravo-Silesian domain.

Elevated prograde geothermal gradient coincides with areas of Devonian sedimentation and volcanism, and syn- to late Carboniferous intrusions.

Keywords

• Barrovian and Buchan metamorphism
• Bohemian Massif
• chloritoid–staurolite
• prograde geotherm
• pseudosection