Oxygen isotope thermometry

temp_d18O() calculates carbonate growth temperature from oxygen isotope data.

Usage

temp_d18O(d18O_c_VSMOW, d18O_H2O_VSMOW, min, eq)

Arguments

d18O_c_VSMOW

Carbonate d18O value expressed on the VSMOW scale (‰).

d18O_H2O_VSMOW

Water d18O value expressed on the VSMOW scale (‰).

min

Mineralogy. Options are as in a18_c_H2O().

eq

Equation used for the calculations. Options depend on mineralogy and listed in a18_c_H2O().

Value

Returns the carbonate growth temperature (°C).

Note

Use to_VSMOW() and to_VPDB() to convert between the VSMOW and VPDB scales.

References

References are listed in the description of a18_c_H2O().

See also

d18O_c() calculates the equilibrium d18O value of a carbonate grown at a given temperature.

d18O_H2O() calculates the d18O value of the ambient water from the d18O value of a carbonate and its growth temperature.

Other thermometry: temp_D47(), temp_D48()

Examples

temp_d18O(d18O_c_VSMOW = 14.58, d18O_H2O_VSMOW = -13.54,
          min = "calcite", eq = "Coplen07")
#> [1] 33.7