Deformation bands, Hillsdale Canyon, Utah


Hillsdale Canyon is on the west side of the Paunsaugunt plateau in southern Utah.  I collected this specimen there in ~1999.  The deformation bands there are in the form of tiny thrusts, causing shortening.  I like the delicacy of development of deformation bands expressed in this small rock.

Age & Formation
Straight Cliffs Formation of Upper Cretaceous age, ~70 Ma.