Calculate the temperature from d18Occ and the d18Osw
temp_calc.RdDefaults to the relationship from Kim & O'neil 1997, as updated by Bemis et al., 1998.
Arguments
- d18Occ
The oxygen isotope composition of the carbonate in VPDB.
- d18Osw
The oxygen isotope composition of the sea water in VSMOW
- equation
Character vector with the equation to use. Defaults to Kim & O'Neil, 1997.
References
Shackleton, N. J. (1974). Attainment of isotopic equilibrium between ocean water and the benthic foraminifera genus Uvigerina: Isotopic changes in the ocean during the last glacial. Colloques Internationaux Du CNRS, 219, 203–209.
Erez, J., & Luz, B. (1983). Experimental paleotemperature equation for planktonic foraminifera. Geochimica et Cosmochimica Acta, 47(6), 1025–1031. https://doi.org/10.1016/0016-7037(83)90232-6
Kim, S.-T., & O’Neil, J. R. (1997). Equilibrium and nonequilibrium oxygen isotope effects in synthetic carbonates. Geochimica et Cosmochimica Acta, 61(16), 3461–3475. https://doi.org/10.1016/S0016-7037(97)00169-5
Bemis, B. E., Spero, H. J., Bijma, J., & Lea, D. W. (1998). Reevaluation of the oxygen isotopic composition of planktonic foraminifera: Experimental results and revised paleotemperature equations. Paleoceanography, 13(2), 150–160. https://doi.org/10.1029/98PA00070
Marchitto, T. M., Curry, W. B., Lynch-Stieglitz, J., Bryan, S. P., Cobb, K. M., & Lund, D. C. (2014). Improved oxygen isotope temperature calibrations for cosmopolitan benthic foraminifera. Geochimica et Cosmochimica Acta, 130, 1–11. https://doi.org/10.1016/j.gca.2013.12.034