TY - RPRT TI - The Mountain shear zone, northeastern Wisconsin— A discrete ductile deformation zone within the early Proterozoic Penokean Orogen AU - Paul K. Sims AU - J. S. Klasner AU - Zell E. Peterman PY - 1990 DO - 10.3133/b1904a UR - https://pubs.usgs.gov/publication/b1904A ID - b1904A ER -