TY  - RPRT
TI  - Structural geology of parautochthonous and allochthonous terranes of the Penokean orogeny in upper Michigan — Comparisons with northern Appalachian tectonics
AU  - William J. Gregg
AU  - L. M. H. Carter
PY  - 1993
DO  - 10.3133/b1904q
UR  - https://pubs.usgs.gov/publication/b1904Q
ID  - b1904Q
ER  -