Precambrian Field Camps

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From the archived Precambrian Field Camp website: The highlight of the Precambrian field camp is a week of detailed bedrock mapping in various locations within or near the Boundary Waters Canoe Area Wilderness (BWCAW) in northeastern Minnesota. These capstone projects are conducted during the fifth week of camp with students dispersed into small field parties composed of 2-5 students and an instructor. Capstone field areas have not been previously mapped in detail. Indeed, a major objective of the capstone projects is to emulate a real world experience of mapping in an area where there is no "key." Students are mentored in the technical and practical aspects of mapping in wilderness areas by experienced field instructors. Students are able to choose the capstone project they wished to participate in. Following the week of field mapping, students return to UMD to digitally compile their field data and construct geologic maps of the capstone areas during the final week of camp. They present their final geologic maps and reports on their capstone experience on the last day of camp to their fellow students, instructors, and invited geoscientists from industry, academia, and government agencies.

This collection contains capstone projects for the 2007 to 2015 field camps. There's a map for each field camp indicating the location of its 2-5 capstone projects, a summary presentation for each field camp except 2007, and geologic maps (and one geophysical map) for most (not all) of the capstone projects.

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Now showing 1 - 20 of 57
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    2014 Precambrian Field Camp Capstone Mapping Projects Map
    (2014) University of Minnesota Duluth. Precambrian Research Center
    This map shows the locations of the capstone mapping projects for the 2014 Precambrian Field Camp sponsored by the Precambrian Research Center. It also indicates who participated in which project.
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    2012 Precambrian Field Camp Capstone Mapping Projects Map
    (2012) University of Minnesota Duluth. Precambrian Research Center
    This map shows the locations of the capstone mapping projects for the 2012 Precambrian Field Camp sponsored by the Precambrian Research Center. It also indicates who participated in which project.
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    2011 Precambrian Field Camp Capstone Mapping Projects Map
    (2011) University of Minnesota Duluth. Precambrian Research Center
    This map shows the locations of the capstone mapping projects for the 2011 Precambrian Field Camp sponsored by the Precambrian Research Center. It also indicates who participated in which project.
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    2013 Precambrian Field Camp Capstone Mapping Projects Map
    (2013) University of Minnesota Duluth. Precambrian Research Center
    This map shows the locations of the capstone mapping projects for the 2013 Precambrian Field Camp sponsored by the Precambrian Research Center. It also indicates who participated in which project.
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    2015 Precambrian Field Camp
    (2015-08) University of Minnesota Duluth. Precambrian Research Center
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    2010 Precambrian Field Camp
    (2010-08) University of Minnesota Duluth. Precambrian Research Center
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    2014 Precambrian Field Camp
    (2014-08) University of Minnesota Duluth. Precambrian Research Center
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    2011 Precambrian Field Camp
    (2011-08) University of Minnesota Duluth. Precambrian Research Center
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    2012 Precambrian Field Camp
    (2012-08) University of Minnesota Duluth. Precambrian Research Center
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    2013 Precambrian Field Camp
    (2013-08) University of Minnesota Duluth. Precambrian Research Center
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    2009 Precambrian Field Camp
    (2009-08) University of Minnesota Duluth. Precambrian Research Center
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    Bouguer Anomaly Map of the Devilfish Lake Area, Cook County, Minnesota
    (2015-08) McClendor, Taylor; Spinelli, Kristen; Walsh, Aiden; Asp, Kris; Larson, Phillip
    This map displays the contour Bouguer anomaly values measured in milligals based on a gravity survey conducted by Taylor McClendon under the guidance of Phillip Larson, Vesterheim Geoscience PLC. The purpose of this map is to identify the contact relationships between the Crocodile Lake Gabbro, Cucumber Lake Granophyre and a hybrid constituent, as well as describing the contacts between the Esther Lake Lavas, Grand Portage Basalt and Hovland Formation. A total of 85 gravity measurements located via GPS were taken along roads using a Lacoste and Romberg model gravimeter at 0.25 to 0.50 mile intervals Elevation values were retreived through LiDAR.
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    2008 Precambrian Field Camp
    (2008-08) University of Minnesota Duluth. Precambrian Research Center
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    2010 Precambrian Field Camp Capstone Mapping Projects Map
    (2010) University of Minnesota Duluth. Precambrian Research Center
    This map shows the locations of the capstone mapping projects for the 2010 Precambrian Field Camp sponsored by the Precambrian Research Center. It also indicates who participated in which project.
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    Bedrock Geologic Map of the Devilfish Lake Area, Cook County, Minnesota
    (2015-08) McClendor, Taylor; Spinelli, Kristen; Walsh, Aiden; Asp, Kris; Larson, Phillip
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    Bedrock Geology Map of the Crocodile Lake Intrusion: Cook County, Northeastern Minnesota
    (2015-08) Church, Andrew; Curry, Zach; Dim, Jules; Lawyer, Luke; Reale, Peter; Slachter, Mitchell; Fix, Paul J; Peterson, Dean M
    This map includes new bedrock geologic mapping by the authors combined with compilation of previous work (see references) under the direction of Dr. Dean Peterson for the 2015 Precambrian Research Center’s field course. The intent of this work was to improve upon previous mapping and to investigate potential economic mineralization near the base of the Crocodile Lake intrusion in Cook county Minnesota. Bedrock outcrop mapping at a scale of 1:20,000 was conducted in the Boundary Waters Canoe Area Wilderness (BWCAW) focusing on the areas immediately surrounding Crocodile Lake. During a period of five days, 233 outcrops were mapped along >130 miles of both land and canoe raverses. In addition, over 45 rock samples were collected from the field to aid the USGS in a regional assessment of mineralization potential. Early reconnaissance mapping was done by Dr. Dean Peterson and Dr. Phil Larson along Shoe Lake Road to the southeast of the map area. Using work done by F.F. Grout from 1925-1927 as a starting point, our intent was to discriminate units initially mapped by Grout as undifferentiated gabbro. After collecting data we were able to discern six units of gabbro, one of which has trace sulfides. Comparisons were made to the Poplar Lake intrusion, a similar Early Gabbro series of the Duluth Complex to the west of the map area. While the Poplar Lake and Crocodile Lake intrusions may be a correlative, a comparison of the lithologies suggests a distinction between the two. However, further mapping of the contact is needed for a definite conclusion. The authors acknowledge and appreciated the support of the University of Minnesota-Duluth, and to the staff of the Precambrian Research Center.
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    Bedrock Geology of the Cherokee Lake Area, Boundary Waters Canoe Area Wilderness, Cook County, Minnesota
    (2015-08) Balles, Aaron; Brown, Ellie; Helms, Ryan; Miller, James; Penzel, Greta; Smith, Lukas R
    This map was compiled based on the mapping of over 300 outcrops over the course of 4 days under the supervision of Dr. Jim Miller. Five students, along with Dr. Miller, mapped outcrop along the shorelines of Cherokee Lake and Town Lake in order to better understand the lithostratigraphy, contact relationships, and other features of the Duluth Complex and Brule Lake - Hovland Complex. (Brooker and Miller, 2013).
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    Bedrock Geology Map of the Knife Lake Group and Related Intrusions near Kekekabic Lake: Lake County, Minnesota
    (2015-08) Christenson, Jaron; Kent, Morgan; Puzel, Ryan; Spreitzer, Steven; Upton, Margaret; Jirsa, Mark J
    This map was created by undergraduate students attending the Precambrian Research Center Field Camp in the summer of 2015 under the guidance of Mark Jirsa, Minnesota Geological Survey. Reconnaissance mapping at a scale of 1:24,000 was conducted by the authors in the Boundary Waters Canoe Area Wilderness (BWCAW) in the vicinity of Kekekabic Lake. The goal of this endeavor was to uncover the regional geologic history of Neoarchean rocks of the Knife Lake Group that have been influenced by volcanism and intruded by igneous bodies. An additional goal was to acquire an understanding of the contact between the Mesoproterozoic Duluth Complex and other Proterozoic intrusions, and the Knife Lake Group. Nearly 220 outcrops were examined in the course of 8 days by traveling approximately 130 miles by canoe and land traverses to con rm the internal lithologic variability, contact relationships, stratigraphic facing, and structure. The area primarily contains etasedimentary, metavolcanic, and intrusive rocks of the Neoarchean Knife Lake Group. Metasedimentary rocks including graywacke, slate, sandstone and conglomerate that were deposited in alluvial fan, fluvial, and subaqueous environments. Metavolcanic rocks include largely porphyritic, mafic and intermediate flows that shed detritus to the sedimentary units. The metasedimentary and metavolcanic units are intruded by polyphase intrusions, which also contributed detritus to some sedimentary rocks. The Neoarchean rocks were intruded by Proterozoic diabase dikes and the Duluth Complex.
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    Bedrock Geologic Map of a Portion of the South Kawishawi Intrusion, Lake County, Minnesota
    (2014-08) Branham, Jesse; Dove, Andrea; Ferry, Carlos; Gorlick, Jacob; Hoeft, Erin; Pysher, Aaron; Mulcahy, Connor; Peterson, Dean M
    This map is the result of a six day mapping project in the South Kawishiwi Intrusion, which took place from August 3rd through the 8th of 2014. This map was created on a 1:5000 scale by Precambrian Research Center field camp students at the University of Minnesota Duluth under the supervision of Dr. Dean Peterson. Data for this project was compiled from Peterson (2014) and Phinney (1966) and combined with the data that was collected over the mapping period. The purpose of this project was to create a more detailed and accurate geological map of this locality on the Duluth Complex, as well as a better understanding of possible glacial till deposits in the area. This project was also performed to test the conceptual model of this location, which inferred that the lineaments seen on LIDAR of the area consisted of mainly fault-like features and that the area was primarily covered by glacial water table through these fractures/faults due to mining operations and tailings processes. This capstone area was selected under the idea that the proposed conceptual model for the lineaments in the mapping area were incorrect. After six days of mapping and data collection on this location it is accurate to conclude that this area consists of almost entirely bedrock composed of large amounts of varying types of troctolite and anorthosite, with a sparse amount of localized till piles that consist of small pebbles to large boulders. The 1227 outcrops that were mapped in this area were not found to be fractured/faulted but instead broke apart due to frost wedging. This is the dominant type of mechanical weathering in the area. of this area was found to be false and the local water table and aquifers in this area would not be in jeapordy by consequence of mining operations.
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    Bedrock Geology of the North and South Temperance Lakes Area, Boundary Waters Canoe Area Wilderness, Cook County, Minnesota
    (2014-08) Beaver, Christopher; Hahn, Timothy, Jr; Miller, Nikolas; Pugliese, Joseph; Wright, Erick; Miller, James
    This map was compiled based on the mapping of over 850 outcrops over the course of 5 days under the supervision of Dr. Jim Miller. Five students, along with Dr. Miller, mapped outcrop along the shorelines of North Temperance Lake and South Temperance Lake, in order to better understand the lithostratigraphy, contact relationships, and other features comprising an as yet unnamed ma c layered intrusion that forms the footwall to the Sawbill Lake intrusion mapped in previous capstone projects (Brooker and Miller, 2013).