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GEOREF RECORD

Application of lidar and geophysics to archaeological investigations in the upper Mississippi River valley

Ronald C. Schirmer and Chad Wittkop
Application of lidar and geophysics to archaeological investigations in the upper Mississippi River valley (in Archean to Anthropocene; field guides to the geology of the Mid-Continent of North America, James D. Miller (editor), George J. Hudak (editor), Chad Wittkop (editor) and Patrick I. McLauglin (editor))
Field Guide (Geological Society of America) (September 2011) 24: 401-410

Abstract

Red Wing, Minnesota, is located in the upper Mississippi River valley near the northern margin of the Driftless Area, a portion of southeast Minnesota and western Wisconsin that was not glaciated in the late Quaternary characterized by river valleys deeply dissected through a sequence of Paleozoic sediments. River terraces are prominent in the field trip area. These terraces developed in two steps. Glacial outwash filled the valleys in the late Quaternary, followed by at least two pulses of incision associated with meltwater drainage from large glacial lakes to the north, including glacial Lake Agassiz. Following the last pulse of meltwater incision, tributary streams built sediment fans in the valley floor which the post-glacial Mississippi River was not able to erode. As a result, large lakes--including Lake Pepin--developed in the valley bottom. Lake Pepin has subsequently shrunk by delta progradation from the north. Evidence of Native American habitation in the area extends to Paleoindian time (ca. 11 ka B.P. calendar), but there is limited evidence of large, horticultural populations until A.D. 700. This timing coincides with the advance of the Lake Pepin delta front from St. Paul south to the Red Wing area. Large village sites were strategically placed on terraces above the Mississippi. Recent application of LiDAR (light detection and ranging) and resistivity surveys have aided ongoing archaeological investigations in the Red Wing area. Burial mound groups are visible in airborne LiDAR elevation data, and resistivity surveys have revealed evidence of an extensive village at the Silvernale site.


ISSN: 2333-0937
EISSN: 2333-0945
Serial Title: Field Guide (Geological Society of America)
Serial Volume: 24
Title: Application of lidar and geophysics to archaeological investigations in the upper Mississippi River valley
Title: Archean to Anthropocene; field guides to the geology of the Mid-Continent of North America
Author(s): Schirmer, Ronald C.Wittkop, Chad
Author(s): Miller, James D.editor
Author(s): Hudak, George J.editor
Author(s): Wittkop, Chadeditor
Author(s): McLauglin, Patrick I.editor
Affiliation: Minnesota State University, Department of Anthropology, Mankato, MN, United States
Affiliation: University of Minnesota-Duluth, Department of Geological Sciences, Duluth, MN, United States
Pages: 401-410
Published: 201109
Text Language: English
Publisher: Geological Society of America, Boulder, CO, United States
References: 24
Accession Number: 2012-009908
Categories: Quaternary geologyApplied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sketch map
N44°30'00" - N45°15'00", W93°30'00" - W92°30'00"
Secondary Affiliation: Natural Resources Research Institute, USA, United StatesMinnesota State University, USA, United StatesWisconsin Geological and Natural History Survey, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201205
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