A clumped isotope temperature calibration of the form: $$y = a \times 10^6 / T^2 + b$$, where T is in Kelvin.
tempcal(
Tc,
slope = 0.0449,
intercept = 0.167,
slpcnf = 0.001,
intcnf = 0.01,
ignorecnf = FALSE
)The temperature in \(^{\circ}\)C.
The slope of the regression.
The intercept of the regression.
The confidence of the slope of the regression.
The confidence of the intercept of the regression.
Whether or not to ignore the confidence of the temperature calibration.
A tibble with input Tc and estimated \(\Delta_47\) value with lower and upper bounds.
Defaults to Bonifacie et al. 2017 $$\Delta_47 = (0.0449 \pm 0.001 \times 10^6) / T^2 + (0.167 \pm 0.01)$$
M. Bonifacie, D. Calmels, J. M. Eiler, J. Horita, C. Chaduteau, C. Vasconcelos, P. Agrinier, A. Katz, B. H. Passey, J. M. Ferry, J. Bourrand. Calibration of the dolomite clumped isotope thermometer from 25 to 350 \(^\circ\)C, and implications for a universal calibration for all (Ca, Mg, Fe)CO\({}_3\) carbonates. 2017, 200, 255–279.
revcal()