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The Influence of Bedrock Topography on the Origin of a Mid-Pleistocene Epoch Glacial Lake in Rock County, Southwest Minnesota

Southwick, David L (Minnesota Geological Survey, 2017)
A circular, closed depression 1.9 miles (3 kilometers) in diameter that was formerly occupied by a shallow lake is located in the glaciated landscape of northern Rock County, southwest Minnesota. The depression is partly ...

Characterization of the Philbrook Intrusion, Central Minnesota

Boerboom, Terrence J; Geary, Jesse (Minnesota Geological Survey, 2017)
The Philbrook intrusion is an informal name for a small, sub-circular mafic pluton that is exposed at the surface along the southeast side of the Long Prairie River near the town of Philbrook, in northeastern Todd County, ...

RI-68 Quaternary Lithostratigraphic Units of Minnesota

Johnson, Mark D.; Adams, Roberta S.; Gowan, Angela S.; Harris, Kenneth L.; Hobbs, Howard C.; Jennings, Carrie E.; Knaeble, Alan R.; Lusardi, Barbara A.; Meyer, Gary N. (Minnesota Geological Survey, 2016-03)
Much of Minnesota is covered by sediment of Quaternary age that was deposited during numerous glaciations by ice, wind, and water. In this report, we follow guidelines of the North American Stratigraphic Code (North American ...

RI-70, Characterization of the Franklin Peridotite and Other Similar Intrusions in East-Central and Southwestern Minnesota

Boerboom, Terrence J. (2014)
Outcrops of peridotite adjacent to the Minnesota River near the town of Franklin in Renville County were sampled and petrographically characterized as part of a small study funded by the Minnesota Department of Natural ...

RI-69 Reexamination of the Minnesota River Valley Subprovince with Emphasis on Neoarchean and Paleoproterozoic Events

Southwick, David (2014-03-06)
The Minnesota River valley subprovince (MRV) is a fragment of Mesoarchean continental crust that was sutured to the southern margin of the Superior craton about 2,600 m.y. ago. The suturing event induced widespread ...