Boudins or Pillows?

Surface of quarried block in the Catoctin Formation.

Surface of quarried block in the Catoctin Formation. Hammer is ~35 cm long.

This is going to be trouble…

Annotated view. g- greenstone (actinolite schist), m- marble, v- vein composed of carbonate minerals.

Annotated view. g- greenstone (actinolite schist), m- marble, v- vein composed of carbonate minerals.