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Bijl, Peter K; Houben, Peter; Schouten, Stefan; Bohaty, Steven M; Sluijs, Appy; Reichart, Gert-Jan; Sinninghe Damsté, Jaap S; Brinkhuis, Henk (2010): Temperature and CO2 estimation for the Middle Eocene section of ODP Hole 189-1172A. PANGAEA, https://doi.org/10.1594/PANGAEA.771637, Supplement to: Bijl, PK et al. (2010): Transient Middle Eocene atmospheric CO2 and temperature variations. Science, 330(6005), 819-821, https://doi.org/10.1126/science.1193654

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Abstract:
The long-term warmth of the Eocene (~56 to 34 million years ago) is commonly associated with elevated partial pressure of atmospheric carbon dioxide (pCO2). However, a direct relationship between the two has not been established for short-term climate perturbations. We reconstructed changes in both pCO2 and temperature over an episode of transient global warming called the Middle Eocene Climatic Optimum (MECO; ~40 million years ago). Organic molecular paleothermometry indicates a warming of southwest Pacific sea surface temperatures (SSTs) by 3° to 6°C. Reconstructions of pCO2 indicate a concomitant increase by a factor of 2 to 3. The marked consistency between SST and pCO2 trends during the MECO suggests that elevated pCO2 played a major role in global warming during the MECO.
Project(s):
Coverage:
Latitude: -43.959750 * Longitude: 149.928260
Date/Time Start: 2000-04-22T06:45:00 * Date/Time End: 2000-04-26T09:30:00
Event(s):
189-1172A * Latitude: -43.959750 * Longitude: 149.928260 * Date/Time Start: 2000-04-22T06:45:00 * Date/Time End: 2000-04-26T09:30:00 * Elevation: -2621.9 m * Penetration: 522.6 m * Recovery: 483.72 m * Location: Tasman Sea * Campaign: Leg189 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 56 cores; 522.6 m cored; 0 m drilled; 92.6 % recovery
Size:
2 datasets

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