Monday, 20.11.2017
Jurassic Forum



[ New messages · Members · Forum rules · Search · RSS ]
Page 1 of 11
Jurassic Forum » JURASSIC references & paper reviews » Jurassic around the world » Price et al., 2013 (Isotopic evidence for long term warmth in the Mesozoic)
Price et al., 2013
mhornДата: Wednesday, 20.03.2013, 14:15 | Сообщение # 1
Admin
Group: Администраторы
Posts: 1060
Reputation: 0
Status: Offline
Price, G.D., Twitchett, R.J., Wheeley, J.R.& Buono, G. (2013) Isotopic evidence for long term warmth in the Mesozoic. Sci.
Rep. 3, 1438; DOI:10.1038/srep01438

http://www.nature.com/srep/2013/130313/srep01438/full/srep01438.html

Atmospheric CO2 concentrations appear to have been considerably higher than modern levels during much of the Phanerozoic and it has hence been proposed that surface temperatures were also higher. Some studies have, however, suggested that Earth’s temperature  (estimated from the isotopic composition of fossil shells) may have been independent of variations in atmospheric CO2 (e.g. in the Jurassic and Cretaceous). If large changes in atmospheric CO2 did not produce the expected climate responses in the past, predictions of future climate and the case for reducing current fossil-fuel emissions are potentially undermined. Here we evaluate the dataset upon which the Jurassic and Cretaceous assertions are based and present new temperature data, derived from the isotopic composition of fossil brachiopods. Our results are consistent with a warm climate mode for the Jurassic and Cretaceous and hence support the view that changes in atmospheric CO2 concentrations are linked with changes in global temperatures.


Middle Jurassic - Lower Cretaceous ammonites & aptychi
 
Jurassic Forum » JURASSIC references & paper reviews » Jurassic around the world » Price et al., 2013 (Isotopic evidence for long term warmth in the Mesozoic)
Page 1 of 11
Search:

jurassic.ru © 2017
Free web hostinguCoz