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Research Map. Crushed Rocks. Philadelphia.
Research Map. Crushed Rocks. Mylonites. Cataclastic rocks. Philadelphia.
Research Map. Crushed Rocks. Mylonites. Cataclastic rocks. Philadelphia.
Staurolite-Kyanite Subfacies. Philadelphia.
Granitized Mica Schists. Philadelphia.
Research Map. Isograds. Philadelphia.
Research Map. Chloritized Rocks. White Chlorite. Tourmaline. Philadelphia.
Research Map. Granitized Rocks. Philadelphia.
Chloritized Mica Schists. Philadelphia.
Germantown Sheet, Sample Location Map