Introduction, L. G. Medaris, Jr.
Evolution of Penokean foldbelt, Lake Superior region, and its tectonic environment, P. K. Sims and Z. E. Peterman
Tectono-sedimentary history of early Proterozoic rocks of the northern Great Lakes region, Grant M. Young
Early Proterozoic tectonics of the Lake Superior region: Tectonostratigraphic terranes near the purported collision zone, D. K. Larue
Tidal deposits in the early Proterozoic basin of the Lake Superior region The Palms and the Pokegama Formations: Evidence for subtidal-shelf deposition of Superior-type banded iron-formation, Richard W. Ojakangas
Lower Proterozoic volcanic rocks and their setting in the southern Lake Superior district, Jeffrey K. Greenberg and Bruce A. Brown
Early Proterozoic tectonic style in central Wisconsin, R. S. Maass
Lower Proterozoic stratified rocks and the Penokean orogeny in east-central Minnesota, G. B. Morey
Geochemistry and evolution of the early Proterozoic, post- Penokean rhyolites, granites, and related rocks of south- central Wisconsin, U.S.A., Eugene I. Smith
The Proterozoic red quartzite enigma in the north-central United States: Resolved by plate collision? R. H. Dott, Jr.