Samples S-23 S-49 S-38 14C pmC 71.4 82.66 3.37 14C age (uncorrected) BP 2416 ±43 1529 ±35 27233 ±410 δ 13CTIC -16.05 -14.6 -21.1 δ 13CSoil (‰) -23 -23 -23 δ 13Ccarb (‰) 0 0 0 q 0.69 0.63 0.91 14C age (corrected) BP 1667 ±43 970 ±35 24782 ±410

Table 4: The parameters of the 13C mixing model for 14C age correction

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