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Geologic map of the Smyrna Mills quadrangle, Aroostook County, Maine
Louis Pavlides
1972, Geologic Quadrangle 1024
BEDROCK GEOLOGY The sedimentary and volcanic rocks of the Smyrna Mills quadrangle have undergone weak regional metamorphism and, locally, a higher grade of thermal metamorphism. Because the original character of the regionally metamorphosed rocks is well preserved, the descriptive nomenclature of. sedimentary and volcanic rocks rather than metamorphic rocks is used. ...