Erratum: Late glacial and holocene 10Be production rates for western Norway

Abstract

(1) Calculation of the sea level high latitude production rate based on the samples from the Herdla-Halsnoy 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 Halsnoy were calculated using a correction based on the relative sea level history (70m maximum) plus the eustatic sea level history (50m at maximum), i.e. that the amount of isostatic depression had been over corrected. Sea level high latitude Be 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 (Halsnoy 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 Halsnoy 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. References