CHARCOAL IDENTIFICATION AND AMS RADIOCARBON AGE DETERMINATION FOR A SAMPLE FROM CHIQUIHUITE CAVE, ZACATECAS, MEXICO

Chiquihuite Cave, located in the high altitude desert (2740 m asl) in the State of Zacatecas, north-central Mexico, is an active cave with deep deposits. A small sediment sample mixed with visible charcoal flakes was submitted for charcoal identification and AMS radiocarbon age determination of the deepest cave deposits at a depth of 3.4 meters.

奇基威特洞穴（Chiquihuite Cave）坐落于墨西哥中北部萨卡特卡斯州海拔2740米的高海拔荒漠地带，是一处发育深厚沉积层的活跃洞穴。科研人员采集了一份混有肉眼可见炭屑的小型沉积物样本，针对该洞穴3.4米深度处的最底层沉积层，开展炭屑鉴定与加速器质谱（AMS, Accelerator Mass Spectrometry）放射性碳年代测定工作。