Bluff recession rates along the Lake Michigan shoreline in Illinois
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Abstract
For two time periods, 1872-1937 and 1937-1987, rates of retreat vary from 10 to 75 cm/yr between discrete segments of bluffs (defined by lithology) and between time periods for a given bluff segment. The average retreat rates for the entire area, however, do not vary significantly between the two time periods and are approximately 20-25 cm/yr. The temporally constant regional retreat rates and the regular shape of the local shoreline indicate that a long-term uniform rate of retreat prevails and that local variations in rates balance out through time to produce long-term parallel (in map view) bluff retreat in the area.
Study Area
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Bluff recession rates along the Lake Michigan shoreline in Illinois |
Series title | Bulletin of the Association of Engineering Geologists |
DOI | 10.2113/gseegeosci.xxix.2.103 |
Volume | 29 |
Issue | 2 |
Year Published | 1992 |
Language | English |
Publisher | Association of Engineering Geologists |
Description | 15 p. |
First page | 103 |
Last page | 117 |
Country | United States |
State | Illinois |
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