Montchanin Metagabbro
Montchanin Metagabbro johncallahanThe following description is published in GM10 Bedrock Geologic Map of The Piedmont of Delaware and the Adjacent Pennsylvania, Schenck, W.S., Plank, M.O., and Srogi, L., 2000.
Coarse-grained gabbroic and metagabbroic rocks, variably metamorphosed and deformed. Primary igneous minerals include olivine, clinopyroxene, orthopyroxene, and plagioclase.
Subtitle
Piedmont Unit
Formation Type
montchanin-metagabbro
Geologic Unit Symbol
Omm
Geologic Time Period
Ordovician