| Abstract: | One of the major unresolved questions in Pleistocene paleoclimatology has been whether continental climatic transitions are consistent with the glacial ??18O marine record. Searles Lake in California, now a dry salt pan, is underlain by sediment layers deposited in a succession of lakes whose levels and salinities have fluctuated in response to changes in climate over the last 3 ?? 106 years. Uranium-series dates on the salt beds range from 35 ?? 103 to 231 ?? 103 years. This range of dates allows identification of lake-sediment horizons that are time correlatives of the boundaries of marine isotope stages from the recent 3/4 boundary back to the 8/9 boundary. The 5/6 boundary coincided with a deepening of the lake, but the analogous 1/2 boundary coincided with desiccation. The 3/4, 4/5, 6/7, 7/8, and 8/9 boundaries correspond in age to horizons that record little or no change in sedimentation or climate. These hydrologic results demonstrate that the continental paleoclimate record at this mid-latitude site does not mimic the marine record. |
| Genre: | Article |
| ProdID: | 70012178 |
| Citation Author: | Bischoff, J. L.; Rosenbauer, R. J.; Smith, G. I. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 1224 |
| Citation Issue: | 4691 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Science |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 3 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Uranium-series dating of sediments from Searles Lake: Differences between continental and marine climate records; 1985; Article; Journal; Science; Bischoff, J. L.; Rosenbauer, R. J.; Smith, G. I. |
| Citation Start Page: | 1222 |
| Citation Volume: | 227 |
| Citation Year: | 1985 |
| Type: | citation/reference |
| Text: | Uranium-series dating of sediments from Searles Lake: Differences between continental and marine climate records; 1985; Article; Journal; Science; Bischoff, J. L.; Rosenbauer, R. J.; Smith, G. I. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1985 00:00 -0600 |
| Publisher: | |
