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Magnetic properties of cave sediments at Gran Dolina site in Sierra de Atapuerca (Burgos, Spain)
Quaternary International ( IF 1.9 ) Pub Date : 2021-03-02 , DOI: 10.1016/j.quaint.2021.02.041
Serena D'Arcangelo , Fátima Martín-Hernández , Josep M. Parés

We report new rock magnetic results from a cave in the “Sierra de Atapuerca” (Burgos, North of Spain), that is one of the most important archaeological and palaeontological sites of Lower to Middle Pleistocene in Europe. Our samples are taken in cave sediments of Gran Dolina Cave. Rock magnetic analyses allowed us to determine changes in grain size, composition, and concentration in both cave-entrance and cave-interior sediments. Generally, the cave-entrance sediments are characterized by a high concentration of magnetic minerals while the cave-interior presents a more variable concentration. Because rock magnetic properties, in particular the iron oxides, are affected by environmental factors (such as the intensity of physical and chemical weathering) they offer an important reconstruction proxy for better understanding the paleoenvironmental conditions at the time the earliest hominins began to migrate into Europe. The main goal of this study is to identify magnetic proxies that help to better reconstruct the environmental conditions of this archaeological and palaeontological site.



中文翻译:

Sierra de Atapuerca(西班牙布尔戈斯)Gran Dolina遗址的洞穴沉积物的磁性

我们报告了来自“ Sierra de Atapuerca”(西班牙北部布尔戈斯)一个山洞的新岩石磁学结果,该山洞是欧洲下至中更新世最重要的考古和古生物学遗址之一。我们的样本取自Gran Dolina洞穴的洞穴沉积物。岩石磁性分析使我们能够确定洞穴入口和洞穴内部沉积物的晶粒尺寸,成分和浓度的变化。通常,进入洞穴的沉积物的特征是高浓度的磁性矿物,而洞穴内部的沉积物具有更高的浓度。因为岩石的磁性,特别是氧化铁,受环境因素(例如物理和化学风化强度)的影响,它们提供了重要的重建代理,可以更好地了解最早的人源素开始迁移到欧洲时的古环境条件。这项研究的主要目标是确定有助于更好地重建该考古和古生物学遗址环境条件的磁性代理。

更新日期:2021-04-02
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