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GEOREF RECORD

Age and paleoclimatic significance of Lake Michigan beaches ridges at Baileys Harbor, Wisconsin

T. C. Johnson, Ronald D. Stieglitz and Albert M. Swain
Age and paleoclimatic significance of Lake Michigan beaches ridges at Baileys Harbor, Wisconsin (in Late Quaternary history of the Lake Michigan basin, Allan F. Schneider (editor) and Gordon S. Fraser (editor))
Special Paper - Geological Society of America (1990) 251: 67-74

Abstract

A complex of abandoned Lake Michigan beach ridges at Baileys Harbor, Wisconsin was investigated to establish the type, onset, and periodicity of ridge-forming processes. A further objective of the study was to place the development of the complex into the context of the postglacial history of the Great Lakes region. Surface profiles were constructed, and samples of sediment and peat were collected and analyzed. Results of pollen and radiocarbon analyses were used to infer the kind and timing of climatic conditions affecting lake levels, ridge accretion, and peat accumulation. A suggestion is made for an asymmetrical rate of change between high and low lake levels. The ridges accreted during four episodes of low or falling lake levels separated by three periods of high or rising water, during which erosion of earlier ridges occurred. Peat first began to accumulate in the interridge swales after the first erosional event, and construction of a truncating ridge began not long before 1,000 B.P. A pollen core extracted from behind the oldest ridge revealed a vegetational sequence that closely corresponds with post-Algoma lake-level fluctuations reported by other workers for the Lake Michigan basin.


ISSN: 0072-1077
EISSN: 2331-219X
Coden: GSAPAZ
Serial Title: Special Paper - Geological Society of America
Serial Volume: 251
Title: Age and paleoclimatic significance of Lake Michigan beaches ridges at Baileys Harbor, Wisconsin
Title: Late Quaternary history of the Lake Michigan basin
Author(s): Johnson, T. C.Stieglitz, Ronald D.Swain, Albert M.
Author(s): Schneider, Allan F.editor
Author(s): Fraser, Gordon S.editor
Affiliation: Univ. Wis.-Green Bay, Dep. Nat. and Appl. Sci., Green Bay, WI, United States
Affiliation: Univ. Wis.-Parkside, Dep. Geol., Kenosha, WI, United States
Pages: 67-74
Published: 1990
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
ISBN: 0-8137-2251-9
References: 26
Accession Number: 1990-058870
Categories: Quaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, sect., chart, sketch map
N44°40'00" - N45°25'00", W87°45'00" - W86°45'00"
Secondary Affiliation: Indiana Geol. Surv., USA, United StatesUniv. Wis.-Madison, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 1990
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