Journal
GEOLOGY
Volume 37, Issue 2, Pages 99-102Publisher
GEOLOGICAL SOC AMER, INC
DOI: 10.1130/G25200A.1
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Funding
- New Zealand Foundation for Research, Science and Technology [C05X0701]
- Natural Environment Research Council [NE/C002407/1] Funding Source: researchfish
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Sea-surface temperature (SST) estimates of similar to 30 degrees C from planktic foraminifera and archaeal membrane lipids in bathyal sediments in the Canterbury Basin, New Zealand, support paleontological evidence for a warm subtropical to tropical climate in the early Eocene high-latitude (55 degrees S) southwest Pacific. Such warm SSTs; call into quest-ion previous estimates based on oxygen isotopes and present a major challenge to climate modelers. Even under hypergreenhouse conditions (2240 ppm CO2), modeled summer SSTs for the New Zealand region do not exceed 20 degrees C.
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