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Cone penetration testing for extensive mapping of deeply buried Late Glacial coversand landscape paleotopography
Geoarchaeology ( IF 1.4 ) Pub Date : 2020-07-23 , DOI: 10.1002/gea.21815
Jeroen Verhegge 1 , Annelies Storme 2 , Frédéric Cruz 3 , Philippe Crombé 1
Affiliation  

Late Glacial coversand landscapes are important archives of environmental change during the Pleistocene–Holocene transition as well as of Final Paleolithic human adaptation to these changes. However, extensive reconstruction of these landscapes is hampered by the fact that they are often preserved best when covered with later eolian, alluvial and/or marine sediments. These paleolandscapes are generally mapped by means of manual or mechanical coring to date, which is rather expensive and labor‐intensive. This study aims to develop a more efficient methodology to map paleolandscapes buried within the coversand and below Holocene floodplain deposits, using a case study in NW Belgium. Electric cone penetration testing is established as a primary technique for mapping the paleotopography of thin organic rich layers within the coversand, in combination with core sampling for lithostratigraphic correlation and validation. Radiocarbon dating and pollen analyses are used to investigate the chronological and biostratigraphic context, respectively. The results reveal the paleotopography of three undulating organic rich stabilization surfaces within the coversand, which were formed from the GI‐1d to GI‐1a. These paleosurfaces provide valuable contexts for studying Final Paleolithic archaeology in the coversand region specifically, but the developed methodology is applicable to Paleolithic archaeology in general.

中文翻译:

圆锥体穿透测试,可对深埋的晚冰川覆盖层和景观古地形进行广泛的映射

晚冰川覆盖和景观是更新世至全新世过渡期间环境变化的重要档案,也是人类最终适应这些变化的重要旧档案。但是,由于这些景观经常被以后的风积,冲积和/或海洋沉积物所覆盖,保存得最好,这一事实阻碍了这些景观的大规模重建。迄今为止,通常通过手动或机械取芯来绘制这些古地形,这相当昂贵且劳动强度大。这项研究旨在通过比利时西北部的案例研究,开发出一种更有效的方法来绘制掩埋在表层和全新世洪泛区沉积物之下的古地貌。建立电锥渗透测试是一种用于绘制覆盖层内薄有机富集层古地形图的主要技术,结合岩心取样进行岩性地层对比和验证。放射性碳年代测定和花粉分析分别用于研究年代和生物地层背景。结果揭示了从GI-1d到GI-1a形成的覆盖层内三个起伏的有机富集稳定面的古地形图。这些古地表为研究Coverand地区的最终旧石器时代考古学提供了有价值的背景,但是开发的方法通常适用于旧石器时代考古学。结果揭示了从GI-1d到GI-1a形成的覆盖层内三个起伏的有机富集稳定面的古地形图。这些古地表为研究Coverand地区的最终旧石器时代考古学提供了有价值的背景,但是开发的方法通常适用于旧石器时代考古学。结果揭示了从GI-1d到GI-1a形成的覆盖层内三个起伏的有机富集稳定面的古地形图。这些古地表为研究Coverand地区的最终旧石器时代考古学提供了有价值的背景,但是开发的方法通常适用于旧石器时代考古学。
更新日期:2020-07-23
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