Warm tropical sea surface temperatures in the Late Cretaceous and Eocene epochs

Nature ◽  
2001 ◽  
Vol 413 (6855) ◽  
pp. 481-487 ◽  
Author(s):  
Paul N. Pearson ◽  
Peter W. Ditchfield ◽  
Joyce Singano ◽  
Katherine G. Harcourt-Brown ◽  
Christopher J. Nicholas ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Sea Surface ◽  
Sea Surface Temperatures ◽  
Surface Temperatures ◽  
Tropical Sea

scholarly journals Erratum: Warm tropical sea surface temperatures in the Late Cretaceous and Eocene epochs

Nature ◽  
2001 ◽  
Vol 414 (6862) ◽  
pp. 470-470 ◽  
Author(s):  
Paul N. Pearson ◽  
Peter W. Ditchfield ◽  
Joyce Singano ◽  
Katherine G. Harcourt-Brown ◽  
Christopher J. Nicholas ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Sea Surface ◽  
Sea Surface Temperatures ◽  
Surface Temperatures ◽  
Tropical Sea

Tropical temperature in the Maastrichtian Danish Basin: Data from coccolith Δ47 and δ18O

Geology ◽  
2019 ◽  
Vol 47 (11) ◽  
pp. 1074-1078 ◽  
Author(s):  
Mattia Tagliavento ◽  
Cédric M. John ◽  
Lars Stemmerik
Keyword(s):  
Sea Surface ◽  
Polar Regions ◽  
Sea Surface Temperatures ◽  
Ice Caps ◽  
Greenhouse Climate ◽  
The North ◽  
Surface Temperatures ◽  
Higher Temperature ◽  
Clumped Isotope ◽  
Tropical Sea

Abstract The Cretaceous Earth, with its greenhouse climate and absence of major ice caps in the polar regions, represents an extreme scenario for modeling future warming. Despite considerable efforts, we are just at the verge of fully understanding the conditions of a warm Earth, and better, more extensive proxy evidence is needed to solve existing discrepancies between the applied temperature proxies. In particular, the Maastrichtian temperature trends are controversial, since data indicate cooling in the South Atlantic and contemporary warming of the North Atlantic. The “heat piracy” hypothesis involves northward heat transport to midlatitudes via oceanic currents and is used to explain the contrasting polar cooling/warming patterns. Here, we present Δ47 and δ18O data from nine coccolith-enriched samples from a shallow core taken from the Danish Basin (Chalk Sea), representing a key location at the northern mid-latitudes. Based on Δ47 data of coccolith-enriched material, sea-surface temperatures for the late Campanian–Maastrichtian ranged from 24 °C to 30 °C, with an average of 25.9 °C ± 2 °C. This is 4–6 °C higher than estimates based on Δ47 of bulk samples and 8–10 °C higher than reported temperatures based on bulk δ18O data from the same core. However, these higher temperature estimates are lower, but overall in line with estimates of Late Cretaceous tropical sea-surface temperatures from TEX86 (tetraether index of 86 carbons), when considering latitudinal differences. The study highlights the potential of clumped isotope paleothermometry on coccoliths as a valid, reliable proxy with which to reconstruct sea-surface temperatures.

Coral‐Derived Western Pacific Tropical Sea Surface Temperatures During the Last Millennium

2018 ◽  
Vol 45 (8) ◽  
pp. 3542-3549 ◽  
Author(s):  
Tianran Chen ◽  
Kim M. Cobb ◽  
George Roff ◽  
Jianxin Zhao ◽  
Hongqiang Yang ◽  
...  
Keyword(s):  
Western Pacific ◽  
Sea Surface ◽  
Last Millennium ◽  
Sea Surface Temperatures ◽  
Surface Temperatures ◽  
Tropical Sea

Tropical sea surface temperatures and the Earth's orbital eccentricity cycles

1996 ◽  
Vol 23 (22) ◽  
pp. 3159-3162 ◽  
Author(s):  
Shyam M. Gupta ◽  
A. A. Fernandes ◽  
Raghul Mohan
Keyword(s):  
Sea Surface ◽  
Sea Surface Temperatures ◽  
Orbital Eccentricity ◽  
Surface Temperatures ◽  
Tropical Sea

Effects of doubled CO2on tropical sea surface temperatures (SSTs) for onset of deep convection and maximum SST: Simulations based inferences

2008 ◽  
Vol 35 (12) ◽  
pp. n/a-n/a ◽  
Author(s):  
Y. C. Sud ◽  
G. K. Walker ◽  
Y. P. Zhou ◽  
Gavin A. Schmidt ◽  
K.-M. Lau ◽  
...  
Keyword(s):  
Deep Convection ◽  
Sea Surface ◽  
Sea Surface Temperatures ◽  
Surface Temperatures ◽  
Tropical Sea

Towards calibration of the TEX86 palaeothermometer for tropical sea surface temperatures in ancient greenhouse worlds

2007 ◽  
Vol 38 (9) ◽  
pp. 1537-1546 ◽  
Author(s):  
Stefan Schouten ◽  
Astrid Forster ◽  
F. Elda Panoto ◽  
Jaap S. Sinninghe Damsté
Keyword(s):  
Sea Surface ◽  
Sea Surface Temperatures ◽  
Surface Temperatures ◽  
Tropical Sea
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