High precision U/Th dating of the rock paintings at Mt. Huashan, Guangxi, southern China
High precision U/Th dating of the rock paintings at Mt. Huashan, Guangxi, southern China
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DOI：
10.1017/qua.2017.24
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发表时间：
2017-06
影响因子：
2.3
通讯作者：
Q. Shao;E. Pons‐Branchu;Qiu Zhu;Wei Wang;H. Valladas;M. Fontugne
中科院分区：
文献类型：
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作者：
Q. Shao;E. Pons‐Branchu;Qiu Zhu;Wei Wang;H. Valladas;M. Fontugne
近日，位于中国南部广西壮族自治区西南部左江流域的38处岩石艺术及相关自然景观被列入联合国教科文组织《世界遗产名录》。华山遗址的彩绘板可能是世界上已知的最大的岩石艺术板，由大约1900个可识别的人物组成，占地面积约8000平方米。为了确定华山岩画的确切年龄，研究了岩画上下56层次生碳酸盐岩的矿物学、氧和碳同位素组成，并采用230Th/U方法测定了它们的年代。230 /U测年结果表明，这些岩画的年代介于1856±16 ~ 1728±41年BP之间，对应于东汉中后期（公元25 ~ 220年）。结果表明，华山岩画实践可能持续了一个多世纪，左江岩画比云南白云湾和沧源的岩画要年轻1 ~ 10个世纪。
Abstract The rock art and the associated natural scenery at 38 sites located in the Zuojiang River valley, in the southwest of Guangxi Zhuang Autonomous Region, southern China, were inscribed recently on UNESCO’s World Heritage List. The painted panel at the site of Mt. Huashan is probably the largest known rock art panel in the world, consisting of approximately 1900 identifiable figures and occupying an area of approximately 8000 m2. To determine a precise age on the rock art at Mt. Huashan, 56 secondary carbonate layers above and below the paintings were studied for their mineralogy, oxygen, and carbon isotopic compositions and dated by the 230Th/U method. The 230Th/U dating results demonstrate that ages of the rock paintings can be bracketed between 1856±16 and 1728±41yr BP corresponding to the middle to the end of the Eastern Han dynasty (AD 25 to 220). The results imply that the rock painting practices at Mt. Huashan probably lasted more than a century, and the Zuojiang rock art is younger than that at Baiyunwan and Cangyuan in Yunnan Province by 1 to 10 centuries.