The authors were recently informed of new values for the process blank for UV oxidation of dissolved organic carbon and subsequent analysis at the National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) Facility. Values from this approach should be corrected for a process blank of 22 ± 6 μg of carbon; this blank has a fraction modern of 0.3 ± 0.2. Applying this blank leads to new 'init' Δ14C % values in Table 1. The corrected version of this table follows: (Table Presented).
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