silica {RPANDA}

Silica data across the Cenozoic

Description

Silica weathering ratio across the Cenozoic

Usage

data(silica)

Details

Silica weathering ratio across the Cenozoic calculated by Cermeno et al. (2015) using the lithium isotope record of seawater from Misra and Froelich (2012). The format is a dataframe with the two following variables:

age

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

silica weathering ratio

a numeric vector corresponding to the estimated CO2 at that age

References

Misra, S., Froelich, P.N. (2012) Lithium isotope history of Cenozoic seawater: Changes in silicate weathering and reverse weathering. Science 335(6070):818–823

Cermeno, P., Falkowski, P.G., Romero, O.E., Schaller, M.F., Vallina, S.M. (2015) Continental erosion and the Cenozoic rise of marine diatoms Proceedings of the National Academy of Sciences 112:4239-244

Examples

data(silica)
plot(silica)