P-ed-XRF-geochemical signatures of a 7300 year old Linear Band Pottery house ditch fill at Vráble-Ve'lké Lehemby, Slovakia - House inhabitation and post-depositional processes

P-ed-XRF-geochemical signatures of a 7300 year old Linear Band Pottery house ditch fill at Vráble-Ve'lké Lehemby, Slovakia - House inhabitation and post-depositional processes
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斯洛伐克 Vráble-Velké Lehemby 7300 年前线性带陶器房屋沟渠填充物的 P-ed-XRF 地球化学特征 - 房屋居住和沉积后过程

DOI:
10.1016/j.quaint.2017.03.054
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发表时间:
2017
影响因子:
2.2
通讯作者:
I. Cheben
I. Cheben
中科院分区:
地球科学3区
文献类型:
--
作者:
S. Dreibrodt;M. Furholt;R. Hofmann;M. Hinz;I. Cheben

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在过去的几十年里,多元素分析对于考古和地质考古研究变得越来越重要。特别是最近便携式 ed-XRF (p-ed-XRF) 设备的可用性扩展使得可以快速采集大型数据集。在本文中,我们通过与 wd-XRF 进行比较来评估 p-ed-XRF 设备的定量测量能力。取样、干燥和均质化(筛分 < 2 和粉碎)确保了可比较的测量条件。在测量室中应用氦气浮选,并在低电压/高电流条件下进行足够持续的测量时间,提高了对较轻元素的测量灵敏度(此处在 6 kV、100 μA 下至少 90 秒),从而获得令人满意的质量测量。斯洛伐克东南部 Vráble-Ve'lke Lehemby 遗址上有 7300 年历史的线性陶器屋。根据附近 Fidvár 青铜时代聚落土丘应用的模型,古细菌沉积物的磷含量被认为是古人口学的代表。然而,测量的磷含量太小,无法反映合理数量的居民的新陈代谢。因此,除了房屋占用时间短于预期以及沟渠内垃圾沉积不完全的可能性外,还详细考虑了沉积后的沉降历史。此外,迄今为止,在全新世景观发展的不同后续阶段(森林、农田利用)中植物的生物循环尚未在考古记录的解释中得到广泛考虑,但可能对浅埋考古记录产生了相当大的影响。因此,建议重新考虑对附近青铜时代遗址(Fidvár)地球化学记录的解释。
Over the past decades multi-element analyses have become increasingly important for archaeological and geoarchaeological research. In particular the recent expansion in availability of portable ed-XRF (p-ed-XRF) devices has allowed for the fast acquisition of large data sets. In the presented paper, we evaluate the quantitative measurement capability of a p-ed-XRF device through comparison with wd-XRF. Sampling, drying, and homogenization (sieving < 2 and pulverizing) ensured comparable measurement conditions. The application of He-flotation in the measurement chamber and measurement times of a sufficient duration at low voltage/high amperage conditions increased measurement sensitivity for lighter elements (here at least 90 s at 6 kV, 100 μA), resulting in measurements of a satisfactory quality.In a case study, we measured the elemental contents of the archaeo-sediment-sequence fill of a trench of a ca. 7300 year old Linear Pottery house at the site of Vráble-Ve'lke Lehemby, in southeastern -Slovakia. Based on a model applied at the nearby Bronze Age settlement mound of Fidvár, the P content of the archaeo-sediment was considered as a proxy of palaeo-demography. However, the measured P contents were much too small to reflect the metabolism of a reasonable number of inhabitants. Therefore, in addition to the possibilities of shorter than expected duration of house occupation and incomplete garbage deposition within the ditches, the post-depositional settlement history is considered in detail. Furthermore, bio-cycling by plants during different subsequent phases of Holocene landscape development (forested, agricultural field use) has not been considered extensively in interpretations of the archaeological record so far, but might have had a considerable influence on the shallow buried archaeological record. A reconsideration of the interpretation of the geochemical record from a nearby Bronze Age site (Fidvár) is thus suggested.
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