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Recent developments in using the molecular decay dating method: a review
Annals of the New York Academy of Sciences ( IF 4.1 ) Pub Date : 2021-01-14 , DOI: 10.1111/nyas.14560
Johannes Tintner 1
Affiliation  

The dating of organic findings is a fundamental task for many scientific fields. Radiocarbon dating is currently the most commonly used method. For wood, dendrochronology is another state-of-the-art method. Both methods suffer from systematic restrictions, leading to samples that have not yet been able to be dated. Molecular changes over time are reported for many materials under different preservation conditions. Many of them are intrinsically monotonous. These monotonous molecular decay (MD) patterns can be understood as clocks that start at the time when a given molecule was formed. Factors that influence these clocks include input material composition and preservation conditions. Different wood species, degrees of pyrolysis, and pretreatments lead to different prediction models. Preservation conditions might change the speed of a given clock and lead to different prediction models. Currently published models for predicting the age of wood, paper, and parchment depend on infrared spectroscopy. In contrast to radiocarbon dating, dating via MD does not comprise a single methodology. Some clocks may deliver less precise results than the others. Ultimately, developing a completely different, new dating strategy-such as MD dating-will help to bring to light a treasure trove of information hidden in the darkness of organic findings.

中文翻译:

使用分子衰变测年法的最新进展:综述

有机发现的年代测定是许多科学领域的一项基本任务。放射性碳测年是目前最常用的方法。对于木材,树木年代学是另一种最先进的方法。这两种方法都受到系统限制,导致样品尚未能够确定日期。据报道,许多材料在不同保存条件下会随时间发生分子变化。其中许多本质上是单调的。这些单调的分子衰变 (MD) 模式可以理解为在给定分子形成时开始的时钟。影响这些时钟的因素包括输入材料成分和保存条件。不同的木材种类、热解程度和预处理导致不同的预测模型。保存条件可能会改变给定时钟的速度并导致不同的预测模型。目前已发布的用于预测木材、纸张和羊皮纸年龄的模型依赖于红外光谱。与放射性碳测年相反,通过 MD 测年不包含单一方法。某些时钟提供的结果可能不如其他时钟精确。最终,开发一种完全不同的新约会策略——例如 MD 约会——将有助于揭示隐藏在有机发现黑暗中的信息宝库。
更新日期:2021-01-14
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