The reference materials used for common isotope systems after the USGS)

A dataset containing the reference materials and their assigned values for calibrating isotope systems. These values are used by point::calib_R().

Usage

reference_R

Format

A data frame with 10 rows and 4 variables:

isotope

name of the rare isotope

ratio

isotope ratio

reference

name of reference material

value

value of refrence material

Source

<https://wwwrcamnl.wr.usgs.gov/isoig/isopubs/itchch2.html>