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We previously presented a new determination of the 10Be production rate based on a Younger Dryas end moraine and mid-Holocene rock avalanche, both in western Norway (Goehring et al., 2012). Here, we make two corrections to our previously published 10Be production rates.

  • (1) 
    Calculation of the sea level high latitude production rate based on the samples from the Herdla-Halsnøy Younger Dryas end moraine required accounting for the isostatic rebound of the site following deglaciation (Lohne et al., 2007). In the process of calculating exposure ages of samples from nearby sites, it was realized that the original calibration of the production rates from Halsnøy were calculated using a correction based on the relative sea level history (70 m maximum) plus the eustatic sea level history (50 m at maximum), i.e. that the amount of isostatic depression had been over corrected. Sea level high latitude 10Be production rates based on the correct relative sea level history are presented below in a corrected version of Table 2.
  • (2)
    In the original publication, the ‘Combined’ production rates were determined using a chi-squared minimization based on the data from both calibration sites. However, because the two studied sites have significantly different ages (Halsnøy 11650 ± 100 and Oldedalen 6070 ± 111), and therefore integrate production over different lengths of time, it is inappropriate to determine a sea level high latitude production rate for the entire data set, using the chi-squared minimization. Instead, the arithmetic mean of the production rates from the two sites is the more appropriate average production rate. We present in the corrected Table 2 below both the updated production rate values for the samples from Halsnøy and average production rates using the arithmetic mean and standard deviation of the production rates from the two sites. We apologize for any inconvenience caused.
Table 2. 10Be production rates based on the samples from western Norway.
Scaling Model10Be production rate (at g−1 a−1 ± SD)χ2υ
  • Average production rates using the arithmetic mean and standard deviation of the production rates from the two sites.

Halsnøy
 Lal/Stone4.25 ± 0.112.63
 Desilets4.35 ± 0.112.73
 Dunai4.35 ± 0.112.72
 Lifton4.65 ± 0.122.72
 Lal-t4.25 ± 0.112.63
Oldedalen
 Lal/Stone4.04 ± 0.133.72
 Desilets4.17 ± 0.133.64
 Dunai4.16 ± 0.133.64
 Lifton4.44 ± 0.143.65
 Lal-t4.04 ± 0.133.72
Average
 Lal/Stone4.15 ± 0.15
 Desilets4.26 ± 0.13
 Dunai4.26 ± 0.13
 Lifton4.55 ± 0.15
 Lal-t4.15 ± 0.15

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