Bedrock Geologic Map of the Disappointment Lake Area, Lake County, Northeastern Minnesota

Abstract

This map was created by PRC Field Camp students under the guidance of Dr. Dean Peterson, Duluth Metals Limited Senior Vice President of Exploration, and Dr. George Hudak, Associate Professor of Geology at the University of Wisconsin Oshkosh. The purpose of this map is to further understand the relationship between the Duluth Complex and the older Archean metasediment, volcanic and volcaniclastic rocks in the area which were last mapped in the early 1940's by Gruner. This map will also facilitate undergraduate research theses studies. This map is the result of seven days of field mapping by the authors in 2009. Access to the 955 outcrops included in this project was achieved through extensive mapping of shorelines within the Disappointment, Parent and Snowbank Lakes field area combined with multiple traverses through dense bush and swamp areas. This is the first detailed map of the area produced at a 1:10,000 scale.