Steven Dutch University of Wisconsin-Green Bay Geology of Wisconsin Steven Dutch University of Wisconsin-Green Bay
Geology of Wisconsin
Wisconsin’s Geologic Record
Wisconsin Pleistocene Deposits
Timms Hill
Wisconsin Paleozoic Rocks
Mindoro Cut
Wisconsin Precambrian Rocks
Archean Rocks, Jim Falls
Wisconsin 2 Billion Years Ago
Assembling North America
Oldest Rocks in Wisconsin
Oldest Rocks in the U.S.
1900 MY Penokean Orogeny
Assembling North America
1700 MY Granite and Rhyolite
Mazatzal Orogeny
Cactus Rock
Baraboo Interval Quartzites
Yavapai Orogeny
Baraboo Quartzite
1450 MY Wolf River Batholith
Wolf River Batholith
1100 MY Mid-Continent Rift
The Grenville Orogeny Begins
The Grenville Orogeny
St. Croix Dells
The Wisconsin Arch
Erosion of the Wisconsin Arcf
Present Day
“Old Man” River?
Sea Level Falls and Valleys Deepen
Sea Level Rises and Valleys Fill
The Mississippi Today