temp_d18O: Oxygen isotope thermometry

In isogeochem: Tools for Stable Isotope Geochemistry

Oxygen isotope thermometry

Description

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")

isogeochem documentation built on March 31, 2023, 8:30 p.m.