The effects of bioturbation by earthworms: preliminary results of an actualistic taphonomy experiment

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The Salado River Depression was inhabited during the Late Holocene (2400 400 14C YBP) by potterymaker societies with a hunting-gathering-fishing lifeway. The archaeological remains are deposited in the A horizon of the modern soil, which constitutes a ?biomantle? as pedogenetic formation processes p...

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Autores principales: Escosteguy, Paula, Fernández, Alejandro
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: Prometheus Press 2021
Materias:
Arqueología
Acceso en línea:http://repositorio.filo.uba.ar/handle/filodigital/12986
Aporte de:
FILO Digital - Repositorio de la Facultad de Filosofía y Letras (UBA) de Universidad de Buenos Aires
id I28-R156-filodigital-12986
record_format dspace
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-156
collection FILO Digital - Repositorio de la Facultad de Filosofía y Letras (UBA)
language Inglés
topic Arqueología
spellingShingle Arqueología
Escosteguy, Paula
Fernández, Alejandro
The effects of bioturbation by earthworms: preliminary results of an actualistic taphonomy experiment
topic_facet Arqueología
description The Salado River Depression was inhabited during the Late Holocene (2400 400 14C YBP) by potterymaker societies with a hunting-gathering-fishing lifeway. The archaeological remains are deposited in the A horizon of the modern soil, which constitutes a ?biomantle? as pedogenetic formation processes predominate. These include an intense biological activity produced by the action of roots and edaphic fauna that promote displacements of objects and their sinking to different depths. Hence the archaeological sites of this microregion are shallow. In order to broaden the knowledge about the action of earthworms in these sites, an actualistic taphonomy experiment was designed. The goal was to observe the activity of these invertebrates and to evaluate their possible incidence as a disturbing agent on small bones deposited on a soil. The aim of this paper is to introduce the methodological design of this experimentation and present the preliminary results. For this purpose, two containers with sediment containing humus and earthworms were placed in the open air. Some selected bones of Dasypus hybridus and Gallus gallus were deposited in each container. The activity of earthworms was observed along one year with a weekly record and was detected as deep as 16 cm. Other features associated ?such as burrows? were documented, especially in autumn and winter. No modifications were identified on bone cortical surfaces, though vertical movement of some elements through the sediment is highlighted.
format Artículo
publishedVersion
Artículo
author Escosteguy, Paula
Fernández, Alejandro
author_facet Escosteguy, Paula
Fernández, Alejandro
author_sort Escosteguy, Paula
title The effects of bioturbation by earthworms: preliminary results of an actualistic taphonomy experiment
title_short The effects of bioturbation by earthworms: preliminary results of an actualistic taphonomy experiment
title_full The effects of bioturbation by earthworms: preliminary results of an actualistic taphonomy experiment
title_fullStr The effects of bioturbation by earthworms: preliminary results of an actualistic taphonomy experiment
title_full_unstemmed The effects of bioturbation by earthworms: preliminary results of an actualistic taphonomy experiment
title_sort effects of bioturbation by earthworms: preliminary results of an actualistic taphonomy experiment
publisher Prometheus Press
publishDate 2021
url http://repositorio.filo.uba.ar/handle/filodigital/12986
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