I collected this rock undergound in the Caribou mine, during my dissertation mapping. This type of structure was in the hinge zone of the major fold. I like the shape of this specimen, and the way it reflects the interplay of schistosity and crenulation cleavage. Furthermore, the discovery of this phase/style of deformation expanded my interpretations of the structural geological history of the Caribou mine area.
Age & Formation
Tetagouche Group of Ordovician age, ~420 Ma.