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Article

Spanish

ID: <

10670/1.hdfjnq

>

Where these data come from
Earthworm bioturbation in archaeological sites: experimental Tafonomy analysis

Abstract

earthworms are bioturbines that mix and displace soil particles. As a result, they may change the archaeological context in different ways depending on the species; for example, by gradually burial larger artefacts into an area of subsurface accumulation and by transporting smaller objects to the surface. In order to be aware of the effects of these aneclids on archaeological sites in the Salado bonaeran micro-region, experiments were carried out in the field of actualtic taboomy. The activity of three species present in the area and their impact on the movement of different types of archaeological material was assessed. Three transparent containers were available in the open air and were filled with sediment extracted from the research area, containing humus and earthworms. Armadillo bones, litic artefacts and experimental ceramic fragments of different sizes were placed on the surface of each container. In each case, a litterfall layer was added and a weekly check was carried out for a maximum of 18 months to record the presence of worms, associated traits and the condition of the materials. During the observations and at the end of the experiments, earthworms were recorded in the three containers, in different positions and at different depths. Tunnels, faecal lumps and a cooking were also seen. At the end of the experiment, the bones were semi-buried and buried at different depths, mostly up to the first five cm. Some litic artefacts recorded movements or burial up to three cm. The ceramic pots were semi-buried or remained on the surface.

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