Single-grain FT age FT ages

blabla bla

Usage

get_ages(x, rhos, zeta)

Arguments

x

"dataframe" with count of spontaneous fission-tracks. containing U U-concentration, given as \(^{238}\)U/\(^{29}\)Ca based on cps (for zircon), \(^{238}\)U/\(^{43}\)Ca based on cps (apatite), or \(^{238}\)U in ppm and sU standard deviation of U

rhos

numeric. Spontaneous fission track density

zeta

numeric. Calibration factor based on FCT2 fission-track age standard

Note

You can either use U ratio cps, or U ppm. Whatever you choose for zeta calculation, you must use it for age calculation, too.