Two independent methods for dating rock art: Age determination of paint and oxalate layers at Eagle Cave, TX

Two independent methods for dating rock art: Age determination of paint and oxalate layers at Eagle Cave, TX
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两种独立的岩石艺术年代测定方法:德克萨斯州鹰洞油漆和草酸盐层的年龄测定

DOI:
10.1016/j.jas.2020.105315
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发表时间:
2021
影响因子:
2.8
通讯作者:
Allen, Trinidy
Allen, Trinidy
中科院分区:
地球科学2区
文献类型:
--
作者:
Steelman, Karen L.;Boyd, Carolyn E.;Allen, Trinidy

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这项研究展示了一种新的方法来克服与获得可靠的岩画放射性碳测年有关的挑战。使用两种独立的方法,我们获得了德克萨斯州兰特里鹰洞佩科斯河风格绘画的年代。第一种方法采用等离子体氧化直接从涂料层中分离有机碳,用于加速器质谱仪C-14测量。第二种方法用磷酸处理矿物吸积层,分离草酸钙,用于等离子体氧化清洗、燃烧和C-14测量,以获得绘画的最小和最大年龄。这些油画的放射性碳年代在统计上是难以区分的,加权平均值为3280±1770年BP,以2西格玛(95.4%)的概率校准为公元前1740-1420年龄段(3690-3370年龄段)。对上覆吸积层进行的放射性碳分析较新,而下覆吸积层的放射性碳分析较老。沉积层和颜料层的年代地层学支持这两种测年方法的有效性。有了准确可靠的年代测定方法,可以在挖掘文化底蕴的同时研究该地区的岩画,以提供对这个狩猎-采集社会的更完整的了解。这些测定岩画年代的方法可以应用于世界各地的许多岩石艺术省份。
This study demonstrates a novel approach to overcoming challenges associated with obtaining reliable radiocarbon dates for rock paintings. Using two independent methods, we obtained ages for Pecos River style paintings at Eagle Cave in Langtry, Texas. The first method employed plasma oxidation to isolate organic carbon directly from the paint layer for accelerator mass spectrometry C-14 measurement. The second method treated mineral accretion layers with phosphoric acid to isolate calcium oxalate for plasma oxidation cleaning, combustion, and C-14 measurement to obtain minimum and maximum ages for the paintings. Radiocarbon dates for the paintings are statistically indistinguishable, with a weighted average of 3280 ± 70 years BP calibrated to 1740-1420 cal BC (3690-3370 cal BP) at 2 sigma (95.4%) probability. Radiocarbon assays obtained for the overlying accretion layers are younger and underlying accretion layers are older. The chronological stratigraphy of the accretion and paint layers supports the validity of both dating methods. With accurate and reliable dating methods, rock paintings in the region can be studied alongside excavated cultural deposits to provide a more complete understanding of this hunter-gather society. These methods for dating rock paintings can be applied to many rock art provinces around the world.
旧石器时代洞穴壁画的放射性碳 AMS 日期
DOI: --
发表时间: 2001
期刊: Radiocarbon: An International Journal of Cosmogenic Isotope Research
影响因子: --
作者:
H. Valladas;N. Tisnérat;Hélène Cachier;Maurice Arnold;F. B. D. Quiros;Victoria Cabrera;J. Clottes;Jean Courtin;J. J. Fortea;C. Gonzáles;A. Moure
通讯作者: A. Moure
德克萨斯州下佩科斯地区​​史前岩石涂料和相关草酸盐涂层中脂质的 GC-MS 分析*
DOI: 10.1111/j.1475-4754.2005.00191.x
发表时间: 2005
期刊: Archaeometry
影响因子: 1.6
作者:
S. Spades;J. Russ
通讯作者: J. Russ
古代德克萨斯人:佩科斯下游的岩石艺术和生活方式
DOI: 10.2307/1184422
发表时间: 1986
期刊: Radiocarbon
影响因子: 8.3
作者:
Jim Zintgraff;H. Shafer
通讯作者: H. Shafer
第一批人类到达巴西的日期的一些证据
DOI: 10.1006/jasc.2002.0846
发表时间: 2003
影响因子: 2.8
作者:
S. Watanabe;W. Ayta;Henrique Hamaguchi;N. Guidon;E. Salvia;S. Maranca;O. Baffa
通讯作者: O. Baffa
澳大利亚北部地区富含草酸盐结壳的年龄和成分
DOI: 10.1179/sic.1991.36.1.24
发表时间: 1991
影响因子: 0.8
作者:
A. Watchman
通讯作者: A. Watchman