Strand-plain evidence for late Holocene lake-level variations in Lake Michigan
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Abstract
Lake level is a primary control on shoreline behavior in Lake Michigan. The historical record from lake-level gauges is the most accurate source of information on past lake levels, but the short duration of the record does not permit the recognition of long-term patterns of lake-level change (longer than a decade or two). To extend the record of lake-level change, the internal architecture and timing of development of five strand plains of late Holocene beach ridges along the Lake Michigan coastline were studied. Relative lake-level curves for each site were constructed by determining the elevation of foreshore (swash zone) sediments in the beach ridges and by dating basal wetland sediments in the swales between ridges. These curves detect long-term (30+ yr) lake-level variations and differential isostatic adjustments over the past 4700 yr at a greater resolution than achieved by other studies.
Study Area
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Strand-plain evidence for late Holocene lake-level variations in Lake Michigan |
Series title | Geological Society of America Bulletin |
DOI | 10.1130/0016-7606(1997)109<0666:SPEFLH>2.3.CO;2 |
Volume | 109 |
Issue | 6 |
Year Published | 1997 |
Language | English |
Publisher | Geological Society of America |
Description | 17 p. |
First page | 666 |
Last page | 682 |
Country | United States |
Other Geospatial | Lake Michigan |
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