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A 50,000-Year Record of Climate Oscillations from Florida and Its Temporal Correlation with the Heinrich Events
Abstract
Oscillations of Pinus (pine) pollen in a 50,000-year sequence from Lake Tulane, Florida, indicate that there were major vegetation shifts during the last glacial cycle. Episodes of abundant Pinus populations indicate a climate that was more wet than intervening phases dominated by Quercus (oak) and Ambrosia -type (ragweed and marsh-elder). The Pinus episodes seem to be temporally correlated with the North Atlantic Heinrich events, which were massive, periodic advances of ice streams from the eastern margin of the Laurentide Ice Sheet. Possible links between the Tulane Pinus and Heinrich events include hemispheric cooling, the influences of Mississippi meltwater on sea-surface temperatures in the Gulf of Mexico, and the effects of North Atlantic thermohaline circulation on currents in the Gulf.
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Citations
Cited by
Asynchrony of Antarctic and Greenland climate change during the last glacial period
Blunier, T., Chappellaz, J., Schwander, J., Dällenbach, A., Stauffer, B., Stocker, T. F., Raynaud, D., Jouzel, J., Clausen, H. B., Hammer, C. U., et al. (1998) · Nature · doi:10.1038/29447 · Cited by 772
Hydrological Impact of Heinrich Events in the Subtropical Northeast Atlantic
Bard, E., Rostek, F., Turon, J.-L., & Gendreau, S. (2000) · Science · doi:10.1126/science.289.5483.1321 · Cited by 649
Tremaine, D. M., Froelich, P. N., & Wang, Y. (2011) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2011.06.005 · Cited by 395
Arz, H. W., Pätzold, J., & Wefer, G. (1998) · Quaternary Research · doi:10.1006/qres.1998.1992 · Cited by 375
Vegetation and environment in Eastern North America during the Last Glacial Maximum
Jackson, S. T., Webb, R. S., Anderson, K. H., Overpeck, J. T., Webb III, T., Williams, J. W., & Hansen, B. C. S. (2000) · Quaternary Science Reviews · doi:10.1016/s0277-3791(99)00093-1 · Cited by 335
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Metadata
- Authors
- Grimm, E. C., Jacobson, G. L., Watts, W. A., Hansen, B. C. S., & Maasch, K. A.
- Venue
- Science
- Published
- 1993-07-09
- Volume
- 261
- Issue
- 5118
- Pages
- 198-200
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2037041276
- Cited by
- 368
- References
- 0
- FWCI
- 7.65
- Type
- journal article
- Language
- en
- Open access
- closed
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- Grimm, E. C., Jacobson, G. L., Watts, W. A., Hansen, B. C. S., & Maasch, K. A. (1993). A 50,000-Year Record of Climate Oscillations from Florida and Its Temporal Correlation with the Heinrich Events. Science. https://doi.org/10.1126/science.261.5118.198
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