Science. 1985 Aug 30;229(4716):864-7. doi: 10.1126/science.229.4716.864.
Dating by accelerator mass spectrometry of wooden artifacts, cord, and charcoal samples from Guitarrero Cave, Peru, supports the antiquity of South America's earliest textiles and other perishable remains. The new dates are consistent with those obtained from disintegration counters and leave little doubt about the integrity of the lower Preceramic layers and their early cultivars. Re-evaluation of the mode of deposition suggests that most of the remains resulted from short-term use of the cave in the eighth millennium B.C., with a possible brief human visit as early as 12,560 years ago.
对来自秘鲁吉塔雷罗洞穴的木质文物、绳索和木炭样本进行加速器质谱测年，为南美洲最早的纺织品和其他易腐文物的年代提供了佐证。新的年代与放射性碳测年法得到的年代一致，这也使人们对下古器时代早期文化层及其早期农作物的完整性几乎不再有任何怀疑。对沉积模式的重新评估表明，大部分遗迹是在公元前 8000 年左右洞穴的短期使用中留下的，最早可能在 12560 年前有过短暂的人类到访。
