El contexto sedimentario del yacimiento Olduvayense d’ El Kherba (Argelia)estudios sedimentológicos y micromorfológico

  1. S. Abdessadok 1
  2. M. Sahnouni 2
  3. Z. Harichane 3
  4. N. Mazouni 4
  5. R. Chelli Cheheb 4
  6. Y. Mouhoubi 4
  7. S. Chibane 4
  8. A. Perez-Gonzalez 5
  1. 1 Museum National d’Histoire Naturelle
  2. 2 Centro Nacional de Investigación sobre la Evolución Humana
    info

    Centro Nacional de Investigación sobre la Evolución Humana

    Burgos, España

    ROR https://ror.org/01nse6g27

  3. 3 Musée National du Bardo, Algeria
  4. 4 Centre National de Recherches Préhistoriques, Anthropologiques et Historiques
  5. 5 Instituto de Evolución en África (IDEA), University of Alcalá de Henares
Journal:
Geotemas (Madrid)

ISSN: 1576-5172

Year of publication: 2021

Issue Title: X Congreso Geológico de España

Issue: 18

Pages: 798

Type: Article

More publications in: Geotemas (Madrid)

Abstract

A comprehensive investigation was conducted on the archaeological sediments from the early Pleistocene site of El Kherba (Algeria), involving grain size and soil micromorphology analyses. El Kherba yielded Oldowan stone tools associated with animal fossils from three archaeological deposits. The studies aim at assessing the sedimentary processes that acted in the burial of the archaeological remains and at identifying microfacies in order to gain high-resolution paleoenvironmental information pertaining to early hominin behavioral activities at the site 1.8 million years ago. The data indicates that the archaeological assemblages accumulated during sedimentary cycles with gradual granulometry where each deposit starts with coarse particles and ends with massive silts or micro-bedded silty sands in a floodplain landscape in a temperate climate with rainfall during rainy seasons in the lower part of the stratigraphy and a gradual change from humid to arid environment in the upper part. These results are also supported by taphonomic and isotope studies carried out previously on the site. El Kherba floodplain environment created the conditions for a rapid burial of animal bones and stone tools; and, thus, the pre- servation of hominin behavioral information.