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Science 13 November 1992:
Vol. 258. no. 5085, pp. 1133 - 1135
DOI: 10.1126/science.258.5085.1133
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Articles

Micropaleontological Evidence for Increased Meridional Heat Transport in the North Atlantic Ocean During the Pliocene

Harry J. Dowsett 1, Thomas M. Cronin 1, Richard Z. Poore 1, Robert S. Thompson 2, Robin C. Whatley 3, and Adrian M. Wood 3

1 U. S. Geological Survey, Reston, VA 22092
2 U. S. Geological Survey, Denver Federal Center, Denver, CO 80225
3 University College of Wales, Aberystwyth, Wales SY23 3DB, United Kingdom

The Middle Pliocene (sim3 million years ago) has been identified as the last time the Earth was significantly warmer than it was during the Last Interglacial and Holocene. A quantitative micropaleontological paleotemperature transect from equator to high latitudes in the North Atlantic indicates that Middle Pliocene warmth involved increased meridional oceanic heat transport.

Submitted on June 26, 1992
Accepted on September 17, 1992


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