Single-grain FT age

Single-grain FT age

Usage

get_age(U, rhos, zeta, lambda = pkg.env$lambda[1], g = pkg.env$g)

Arguments

U

numeric. 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

rhos

numeric. Spontaneous fission track density

zeta

calibration factor based on FCT2 fission-track age standard

lambda

numeric. U238 decay constant. 1.55125e-10 by default (Jaffey et al. (1971))

g

numeric. geometry factor. 0.5 by default