Optically-stimulated luminescence profiling and dating of historic agricultural terraces in Catalonia (Spain)
Optically-stimulated luminescence profiling and dating of historic agricultural terraces in Catalonia (Spain)
复制标题
DOI：
10.1016/j.jas.2016.11.003
复制
发表时间：
2017-02
影响因子：
2.8
通讯作者：
T. Kinnaird;Jordi Bol;A. Turner;Sam Turner
中科院分区：
文献类型：
--
作者：
T. Kinnaird;Jordi Bol;A. Turner;Sam Turner
对考古学家来说，确定农业梯田的年代是一个出了名的难题。阶地土壤中残留物质的频繁出现和潜在的沉积后扰动意味着传统的人工和实验室测年方法往往提供不可靠的日期。在本文中，我们提出了一种新的技术，利用发光场剖面与光释光测年相结合，产生与农业梯田和土方工程有关的沉积地层的完整（相对）日期序列。该方法通过西班牙加泰罗尼亚西部的一系列案例研究来证明，在这些案例研究中，我们重建了从中世纪到现在的土方工程特征的形成顺序。在考古调查和挖掘时，OSL剖面可以生成空间和时间上确定的沉积物“年表”，并提供解释每种沉积物中包含的环境和文化档案的方法。本文的案例研究表明，发光方法是重建景观历史的一种有价值的工具。
Dating agricultural terraces is a notoriously difficult problem for archaeologists. The frequent occurrence of residual material in terrace soils and the potential for post-depositional disturbance mean that conventional artefactual and lab-based dating methods often provide unreliable dates. In this paper we present a new technique using luminescence field profiling coupled with OSL dating to produce complete (relative) sequences of dates for sedimentary stratigraphies associated with agricultural terraces and earthworks. The method is demonstrated through a series of case-studies in western Catalonia, Spain, in which we reconstruct the formation sequence of earthwork features from the Middle Ages through to the present day. OSL profiling at the time of archaeological survey and excavation permitted spatially and temporally resolved sediment ‘chronologies’ to be generated, and provides the means to interpret the environmental and cultural archives contained in each. The case-studies presented here show that luminescence approaches are a valuable tool to reconstruct landscape histories.