Early Proterozoic rocks of the Great Lakes region: Sudbury, Ontario, Canada to Duluth, Minnesota, U.S.A. July 1-7, 1989.  Leader: G.B. Morey
Contributors: Morey, G.B.
Publisher: American Geophysical Union
Place of publication: Washington
Language: eng
Number of pages: 63
Subjects: Geology - Guidebooks - Great Lakes; Geology - Great Lakes
Notes: 11