| Abstract: | Pollen, ostracode, and benthic foraminifer assemblages deposited during sea-level highstands in subtropical Florida record a climate change during the period 4.5-1.0 Ma. Before 3.5 Ma, open-shelf marine faunas and pollen assemblages with abundant Pinus, Quercus, Fagus, Carya, and nonarboreal pollen were present, indicating cooler conditions than today. From ~3.5 to 1.0 Ma, marine and terrestrial records indicate warmer conditions, similar to those existing in south Florida today. Combined with evidence for much warmer than modern conditions at high latitudes, these data suggest that increased poleward oceanic heat transport, possibly related to the emergence of the Central American isthmus between ~3.5 and 2.5 Ma, was a major influence on mid-Pliocene warmth. -Authors |
| Genre: | Article |
| ProdID: | 70017776 |
| Citation Author: | Willard, D. A.; Cronin, T. M.; Ishman, S. E.; Litwin, R. J. |
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| Citation End Page: | 682 |
| Citation Issue: | 8 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geology |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | Terrestrial and marine records of climatic and environmental changes during the Pliocene in subtropical Florida; 1993; Article; Journal; Geology; Willard, D. A.; Cronin, T. M.; Ishman, S. E.; Litwin, R. J. |
| Citation Start Page: | 679 |
| Citation Volume: | 21 |
| Citation Year: | 1993 |
| Type: | citation/reference |
| Text: | Terrestrial and marine records of climatic and environmental changes during the Pliocene in subtropical Florida; 1993; Article; Journal; Geology; Willard, D. A.; Cronin, T. M.; Ishman, S. E.; Litwin, R. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1993 00:00 -0600 |
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