Absence of glaciation in Illinois during marine isotope stages 3 through 5
Quaternary Research
By: B. Brandon Curry and M.J. Pavich
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Abstract
A 10Be inventory and 14C ages of material from a core from northernmost Illinois support previous interpretations that this area was ice free from ca. 155,000 to 25,000 yr ago. During much of this period, from about 155,000 to 55,000 yr ago, 10Be accumulated in the argillic horizon of the Sangamon Geosol. Wisconsinan loess, containing inherited 10Be, was deposited above the Sangamon Geosol from ca. 55,000 to 25,000 yr ago and was subsequently buried by late Wisconsinan till deposited by the Lake Michigan Lobe of the Laurentide Ice Sheet. The Sangamonian interglacial stage has been correlated narrowly to marine oxygen isotope substage 5e; our data indicate instead that the Sangamon Geosol developed during late stage 6, all of stages 5 and 4, and early stage 3. ?? 1996 University of Washington.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Absence of glaciation in Illinois during marine isotope stages 3 through 5 |
| Series title | Quaternary Research |
| DOI | 10.1006/qres.1996.0040 |
| Volume | 46 |
| Issue | 1 |
| Year Published | 1996 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Quaternary Research |
| First page | 19 |
| Last page | 26 |
| Google Analytic Metrics | Metrics page |