Geological calibration data from:
Blard, P.-H., Braucher, R., Lave, J., Bourles, D., 2013. Cosmogenic Be-10 production rate calibrated against He-3 in the high tropical Andes (3800-4900 m, 20-22 S). Earth and Planetary Science Letters, v. 382, pp. 140-149.
Blard, P.-H., Lave, J., Sylvestre, F., Placzec, C.J., Claude, C., Galy, V., Condom, T., Tibari, B., 2013. Cosmogenic He-3 production rate in the high tropical Andes (3800 m, 20 S): implications for the local last glacial maximum. Earth and Planetary Science Letters, v. 377-78, p. 260-275.
The reference production rates listed here differ from those published in the source paper
due to differences in the code used to do the calculation. To ensure
consistency between production rate calibration and exposure-age
calculations, the values in the table below are calculated using the
same code that is used to compute the exposure ages in the online
calculator. For details, see the explanantion here.
Reference production rates are only calculated here for the "St" and "Lm" scaling schemes. For discussion of this issue,
also see here.
Thus, results of exposure age calculations
will not include results for other scaling schemes. In addition, results pages may contain warnings that samples are "saturated with respect to" other scaling schemes; these are spurious and should be ignored.
Blard et al. did not report Al-26 concentrations. Thus, reference
production rates for Al-26 in the table below are calculated from those
for Be-10 using (P26 / P10) = 6.75.