Geological Map of the Nickel Lake Macrodike and Northern Bald Eagle Intrusion: Lake County, Northeastern Minnesota
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Geological Map of the Nickel Lake Macrodike and Northern Bald Eagle Intrusion: Lake County, Northeastern Minnesota
Published Date
2007-08
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Map
Abstract
This map is the result of seven days of field mapping by the authors in 2007, as well as a compilation of information
gathered from Green, Phinney and Weiblen (1966) and Peterson et. al (2006). This map was created by PRC Field Camp
students under the supervision and guidance of Dr. Dean Peterson, NRRI Senior Research Associate, as the first map of
the Precambrian Research Center’s Summer Field Camp. The purpose of this map is to aid understanding the nature of
the Nickel Lake Macrodike and its pertinence to Cu-Ni-PGE mineralization in the South Kawishiwi Intrusion [SKI].
Additionally, this map will extend the range of Dr. Peterson’s ongoing project to map in the northern half of the SKI.
Access to the 641 outcrops mapped for this project was provided by extensive canoe shoreline mapping and traverses in
the bush of the Superior National Forest. Initial mapping of the Gabbro Lake and Bald Eagle Lake area was done on a
1:5,000 or 1:10,000 scale and reduced for this map to 1:10,000. Previous mapping of the Gabbro Lake area was done at a
scale of 1:31,680 (Green et. al, 1966) and was limited shoreline traverses. The field work performed for this map was the
first detailed mapping of the area.
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Tharalson, Erik; Sweet, Gabriel; Boisjoli, Troy; Lentz, Brian; Fellows, Tyler; Peterson, Dean M. (2007). Geological Map of the Nickel Lake Macrodike and Northern Bald Eagle Intrusion: Lake County, Northeastern Minnesota. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/257361.
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