PHOTOMICROGRAPH

Crystalline-Clast Breccia
with Melt Matrix

Shocked Quartz Grain

M-1 Core--445 feet

Matrix is grain-rich melt-rock. Quartz grain shows planar deformation features and brownish "toasting" that characterize Manson shocked quartz. Bright white areas were partially melted and have been recrystallized.

field 3.2 x 2.1 mm
cross-polarized light