The Wisconsin Magmatic Terrane is an area formed by a tectonic plate collision at about 1850 Ma .
The Amberg - Athelstane Granite is part of the Wisconsin Magmatic Terrane .
The Wisconsin Magmatic Terrane is an Wisconsin Magmatic Terrane formed by a tectonic plate collision at about 1850 Ma .
The Amberg - Athelstane Granite is part of the Wisconsin Magmatic Terrane .