用动态图像颗粒分析仪研究岩屑微碎屑

IF 0.7 4区历史学 0 ARCHAEOLOGY

NORTH AMERICAN ARCHAEOLOGIST Pub Date : 2022-06-30 DOI:10.1177/01976931221109301

Markus Eberl, Phyllis S. Johnson, Rebecca Estrada Aguila

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引用次数: 3

摘要

岩屑微碎屑在阐明古代石器生产方面具有巨大的考古潜力。到目前为止，考古学家已经收集了土壤样本，将它们分成大小的部分，并在显微镜下进行人工分析，以确定微碎屑。这种时间和劳动密集型的过程限制了样本的数量，并引入了观察者内部和观察者之间的误差。在这里，我们讨论了动态图像颗粒分析仪的岩石微碎屑分析。这台机器拍摄土壤颗粒从溜槽掉落的视频。软件跟踪它们并测量它们的大小。由于不再需要筛分，微负债分析进行得更快，并在几分钟内处理样品。标准化的输出允许对岩石微碎屑进行客观分析。我们比较了考古土壤样品中的c. 120,000颗粒与实验微碎屑的角度。虽然分布显示出有趣的重叠，但我们得出结论，最棱角分明的考古粒子不是微碎片，而是反映了软件故障。

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Studying lithic microdebitage with a dynamic image particle analyzer

Lithic microdebitage has great archaeological potential to elucidate ancient stone tool production. So far, archaeologists have collected soil samples, separated them into size fractions, and analyzed them manually under a microscope to identify microdebitage. This time- and labor-intensive process has limited the number of samples and introduced intra- and inter-observer errors. Here, we discuss lithic microdebitage analysis with a dynamic image particle analyzer. This machine takes videos of soil particles as they fall from a chute. Software tracks them and measures their dimensions. Since sieving is no longer necessary, microdebitage analysis proceeds more quickly and processes samples within a few minutes. The standardized output allows the objective analysis of lithic microdebitage. We compare the angularity of c. 120,000 particles in an archaeological soil sample with experimental microdebitage. While the distributions show intriguing overlaps, we conclude that the most angular archaeological particles are not microdebitage but reflect a software glitch.

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来源期刊

NORTH AMERICAN ARCHAEOLOGIST ARCHAEOLOGY-

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： Published quarterly, this is the only general journal dedicated solely to North America—with total coverage of archaeological activity in the United States, Canada, and Northern Mexico (excluding Mesoamerica). The North American Archaeologist surveys all aspects of prehistoric and historic archaeology within an evolutionary perspective, from Paleo-Indian studies to industrial sites. It accents the results of Resource Management and Contract Archaeology, the newest growth areas in archaeology, often neglected in other publications. The Journal regularly and reliably publishes work based on activities in state, provincial and local archaeological societies.