TY - RPRT TI - Nature and style of deformation in the foreland of the early Proterozoic Penokean Orogen, northern Michigan AU - John S. Klasner AU - R.W. Ojakangas AU - K. J. Schulz AU - G.L. LaBerge PY - 1991 DO - 10.3133/b1904k UR - https://pubs.usgs.gov/publication/b1904K ID - b1904K ER -