| Abstract: | The magnitude of late Wisconsinan (post-35,000 yr B.P.) ice-sheet growth in the Northern Hemisphere is not well known. Ice volume at ???35,000 yr B.P. may have been as little as 20% or as much as 70% of the volume present at the last glacial maximum (LGM). A conservative evaluation of glacial-geologic, sea level, and benthic ??18O data indicates that ice volume at ???35,000 yr B.P. was approximately 50% of that extant at the LGM (???20,000 yr B.P.); that is, it doubled in about 15,000 yr. On the basis of literature for the North Atlantic and a sea-surface temperature (SST) data compilation, it appears that this rapid growth may have been forced by low-to-mid-latitude SST warming in both the Atlantic and Pacific Oceans, with attendant increased moisture transport to high latitudes. The SST ice-sheet growth notion also explains the apparent synchroneity of late Wisconsinan mountain glaciation in both hemispheres. |
| Genre: | Article |
| ProdID: | 70023386 |
| Citation Author: | Winograd, I. J. |
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| Citation End Page: | 307 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Quaternary Research |
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| Citation Number Of Pages: | 9 |
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| Citation Search Results Text: | The magnitude and proximate cause of ice-sheet growth since 35,000 yr B.P.; 2001; Article; Journal; Quaternary Research; Winograd, I. J. |
| Citation Start Page: | 299 |
| Citation Volume: | 56 |
| Citation Year: | 2001 |
| Type: | citation/reference |
| Text: | The magnitude and proximate cause of ice-sheet growth since 35,000 yr B.P.; 2001; Article; Journal; Quaternary Research; Winograd, I. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1006/qres.2001.2272 |
| Date Other: | Mon, 1 Jan 2001 00:00 -0600 |
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