This field trip examines the geology of rocks of the Keweenawan Supergroup (1 .1 Ga) and related intrusive rocks of the Midcontinent rift system (MRS) in the western part of the northern peninsula of Michigan. The combination of stops includes all formations of the Keweenawan Supergroup in this region. Examination of all described localities requires more than a single day and participants are encouraged to use this guidebook on their own to supplement the localities that will be visited on our one-day trip. Because of uncertainties of weather, road conditions, and remaining snow pack in early May in this region of very heavy snowfall, the stops that we will visitwill not be known until the date of the trip. Stops are numbered in stratigraphic order, from oldest to youngest, not in the order in which they will be visited.
Citation Information
| Publication Year | 1992 |
|---|---|
| Title | Geology of Keweenawan Supergroup Rocks near the Porcupine Mountains, Ontonagon and Gogebic Counties, Michigan |
| Authors | William F. Cannon, Suzanne W. Nicholson, Cheryl A. Hedgman, Laurel G. Woodruff, Klaus J. Schul |
| Publication Type | Conference Paper |
| Publication Subtype | Conference Paper |
| Index ID | 70104183 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Eastern Mineral and Environmental Resources Science Center |
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William F. Cannon
Scientist Emeritus
Suzanne W Nicholson, Ph.D.
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Laurel G. Woodruff
Research Geologist
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William F. Cannon
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Associate Program Coordinator - ScienceEmailPhoneLaurel G. Woodruff
Research GeologistEmailPhone