Geology and sedex potential of Early Proterozoic rocks, East-Central Minnesota
MJ Severson, LM Zanko, SA Hauck, JA Oreskovich - 2003 - conservancy.umn.edu
Many stratiform sedimentary exhalative deposits (SEDEX), specifically those in Canada and
Australia, are hosted by Paleoproterozoic sedimentary rocks that were deposited in
intracratonic or intra-rift tectonic settings. Rocks of similar age and tectonic settings are also
found within eastcentral Minnesota and include the Animikie Basin and the Fold-and-Thrust
Belt. However, exploration for SEDEX deposits has been very limited in Minnesota due to an
almost complete lack of outcrop. While extensive drilling for iron-formation took place in …
Australia, are hosted by Paleoproterozoic sedimentary rocks that were deposited in
intracratonic or intra-rift tectonic settings. Rocks of similar age and tectonic settings are also
found within eastcentral Minnesota and include the Animikie Basin and the Fold-and-Thrust
Belt. However, exploration for SEDEX deposits has been very limited in Minnesota due to an
almost complete lack of outcrop. While extensive drilling for iron-formation took place in …
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