co2 {RPANDA}

co2 data since the Jurassic

Description

Atmospheric co2 data since the Jurassic

Usage

data(co2)

Details

Atmospheric co2 data since the Jurassic taken from Mayhew et al., (2008, 2012) and derived from the GeoCarb-III model (Berner and Kothavala, 2001). The data are eported as the ratio of the mass of co2 at time t to that at present. The format is a dataframe with the two following variables:

age

a numeric vector corresponding to the geological age, in Myrs before the present

co2

a numeric vector corresponding to the estimated co2 at that age

References

Mayhew, P.J., Jenkins, G.B., Benton, T.G. (2008) A long-term association between global temperature and biodiversity, origination and extinction in the fossil record Proceedings of the Royal Society B 275:47-53

Mayhew, P.J., Bell, M.A., Benton, T.G, McGowan, A.J. (2012) Biodiversity tracks temperature over time 109:15141-15145

Berner R.A., Kothavala, Z. (2001) GEOCARB III: A revised model of atmospheric CO2 over Phanerozoic time Am J Sci 301:182–204

Examples

data(co2)
plot(co2)