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
中科院分区:
文献类型:
--
作者:
Steelman, Karen L.;Boyd, Carolyn E.;Allen, Trinidy
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.
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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
影响因子:
1.6
作者:
S. Spades;J. Russ
通讯作者:
J. Russ
影响因子:
8.3
作者:
Jim Zintgraff;H. Shafer
通讯作者:
H. Shafer
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
影响因子:
0.8
作者:
A. Watchman
通讯作者:
A. Watchman