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The role of cryptotephra in refining the chronology of Late Pleistocene human evolution and cultural change in North Africa

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Barton, RNE 
Lane, CS 
Albert, PG 
White, D 
Collcutt, SN 

Abstract

© 2014.Sites in North Africa hold key information for dating the presence of Homo sapiens and the distribution of Middle Stone Age (MSA), Middle Palaeolithic (MP) and Later Stone Age (LSA) cultural activity in the Late Pleistocene. Here we present new and review recently published tephrochronological evidence for five cave sites in North Africa with long MSA/MP and LSA cultural sequences. Four tephra horizons have been identified at the Haua Fteah (Cyrenaica, Libya). They include cryptotephra evidence for the Campanian Ignimbrite (CI) eruption dating to ~39 ka that allows correlation with other Palaeolithic sequences in the eastern Mediterranean and as far north as Russia. Cryptotephra have also been recorded from the Moroccan sites of Taforalt, Rhafas and Dar es-Soltane 1. At Taforalt the geochemical composition suggests a provenance in the Azores, while examples from Sodmein (Egypt) appear to derive from central Anatolia and another unknown source. In these latter examples chemical compositional data from relevant proximal volcanic centres is currently lacking so the identification of tephra in layers of known age and cultural association provides the first reliable age determinations for distal volcanic events and their geographical extent. The future potential for tephrochronological research in North Africa is also discussed.

Description

Keywords

Homo sapiens, Tephrochronology, Campanian Ignimbrite (CI), Middle Stone Age (MSA), Middle Palaeolithic (MP), Later Stone Age (LSA), Iberomaurusian

Journal Title

Quaternary Science Reviews

Conference Name

Journal ISSN

0277-3791

Volume Title

118

Publisher

Elsevier
Sponsorship
Leverhulme Trust (RPG-2013-105)
European Research Council (230421)