AMS radiocarbon ages of ice wedges and conventional 14C ages of the enclosing...
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The sampling was carried out using an axe, after first clearing 5-10 cm of ice from the surface.The resulting 14C ages were calibrated using the IntCal20 calibration curve...
本次采样首先清除样品表面5至10厘米厚的冰层，随后采用斧头完成采样操作。所得碳十四（14C）测年结果采用IntCal20校准曲线进行了年代校正……
