一种新的多分析方法,用于对历史性砂进行放射性碳测年
Sara Calandra1, Emma Cantisani2, Claudia Conti3
1Department of Earth Sciences, University of Florence, 50121, Florence, Italy. sara.calandra@unifi.it.
Scientific reports
|August 28, 2024
概括
这项研究引入了一种新的四步方法,用于选择适合的砂样本进行放射性碳测年. 这种程序通过尽量减少污染和验证样品完整性,确保历史砂的精确年代.
科学领域:
- 考古学测量是指考古学测量的方法.
- 材料科学 材料科学 材料科学
- 地质化学 地质化学
背景情况:
- 准确的放射性碳测年历史的砂对于理解建筑历史至关重要.
- 目前用于砂样品制备的方法缺乏标准化,普遍接受的程序,导致潜在的不准确性.
- 像历史性砂这样的异质材料在选择适当的分数以获得可靠的约会方面存在挑战.
研究的目的:
- 提出和验证一种新的,系统的四步程序,用于选择最佳的砂样本进行放射性碳测年.
- 确保选择人为石,避免地质源污染.
- 将开发的方法应用于历史建筑中的古老砂,以确定日期.
主要方法:
- 一个四步程序,涉及建筑/历史调查,多分析性表征 (矿物学,岩石学,化学),结合剂丰富部分的非破坏性分析,碳酸盐微样准备用于加速器质谱 (AMS).
- 强调在微采样和AMS测量之前通过非破坏性分析验证样品适用性.
- 该程序应用于佛罗伦萨特雷比奥城堡的天然液压砂.
主要成果:
- 在特雷比奥城堡的古老砂样本上成功地应用了拟议的程序.
- 识别适合放射性碳测年的微样本,确保人为石的完整性.
- 为分析的砂样本生成可靠的放射性碳测年结果.
结论:
- 开发的四步程序为选择砂样本进行放射性碳测年提供了强大而可靠的策略.
- 该方法有效地减少了地质石污染,从而导致更准确的约会结果.
- 这项研究通过验证的砂约会,为特雷比奥城堡的建造历史提供了重要的见解.
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