A high-grade metamorphic rock that has undergone partial melting, yet retains clear textural evidence of its original crystalline structure. It sits on the spectrum of migmatites between rocks that are barely melted and those that are completely reconstituted. Petrologists examine embrechites to understand the temperature and pressure thresholds the local crust reached during orogeny.
Heard on the job
The outcrop transitions from a standard gneiss into a banded embrechite as you move closer to the intrusion core.