d18OcFromd18OwTemp: Paleotemperature Equation

In EarthSystemDiagnostics/prxytools: Tools to Assist with Proxy Analyses

Paleotemperature Equation

Description

Calculate the equilibrium oxygen isotope composition (d18O) of calcification from seawater oxygen isotope composition (d18Ow) and temperature (Paleotemperature Equation).

Usage

d18OcFromd18OwTemp(d18Ow, Temp)

Arguments

d18Ow	oxygen isotope composition of seawater in permille.
Temp	temperature in degree celcius.

Details

This is an implementation of the paleotemperature equation of O’Neil et al. (1969) and Shackleton (1974). The factor 0.27 was used to convert from water on the SMOW scale to calcite on the Peedee Belemnite (PDB) scale, as described in Anand et al. (2003).

Value

the oxygen isotope composition of calcite on the PDB scale.

Author(s)

Andrew Dolman

References

Anand, P., Elderfield, H. and Conte, M. H.: Calibration of Mg/Ca thermometry in planktonic foraminifera from a sediment trap time series, Paleoceanography, 18(2), 1050, doi:10.1029/2002PA000846, 2003.

O’Neil, J. R., R. N. Clayton, and T. K. Mayeda, Oxygen isotope fractionation in divalent metal carbonates, 51, 5547– 5558, 1969.

Shackleton, N. J., Attainment of isotopic equilibrium between ocean water and the benthonic foraminiferal genus Uvigerina: Isotopic changes in the ocean during the last glacial, Cent. Natl. Rech. Sci. Colloq. Int., 219, 203–209, 1974.

See Also

d18OwFromSalinity, CalcifTemp

Examples

  d18OcFromd18OwTemp(d18Ow = 0.6, 1:26)

EarthSystemDiagnostics/prxytools documentation built on Jan. 15, 2024, 9:33 p.m.