Detailed fission track age data for each sample. 238U refers to the measured 238U concentration for each grain in ppm with SD = 1σ uncertainty. Ns represents the number of counted tracks. Area = the s
Sample Number: LM 8B Position (#): 18 Area of Graticule Square: 6.400E-07 No. of Crystals: 20 Zeta Factor ±Error: 305.8± 8.4 Rho d (% Relative Error): 1.580E+06 N d: 5057 Mineral: Apatite Glass (U ppm
Sample Number: LM 13 Position (#): 18 Area of Graticule Square: 6.400E-07 No. of Crystals: 20 Zeta Factor ±Error: 305.8± 8.4 Rho d (% Relative Error): 1.580E+06 N d: 5057 Mineral: Apatite Glass (U ppm