Ban Don Mun (Thailande): A chronological reappraisal of human occupations

The Ban Don Mun artifacts: A chronological reappraisal of human occupations in the Lampang province of Northern Thailand

Valery Zeitoun,  Hubert Forestier,  Michel Rasse, Prasit Auetrakulvit, Jeongmin Kim,  Chaturaporn Tiamtinkrit

Source - http://www.sciencedirect.com/science/article/pii/S0047248413000973

Journal of Human Evolution: Volume 65, Issue 1, July 2013, Pages 10–20

Abstract

Despite recent stone tool evidence demonstrating a much older Early Pleistocene human presence in India, the timing and geography of human demographic expansions in continental Southeast Asia remains ambiguous. The recent discovery of a series of stone artifacts spread over a basalt level at Ban Don Mun in the Lampang province of northern Thailand presents an ideal opportunity for reevaluating lithic assemblages documented during the 1970s and 1980s in the same region. Both the position of these stone tools and new absolute dates indicate a Middle Pleistocene age and call into question the status of these artifacts as the oldest yet found in Southeast Asia. The uncertain geo-chronological context and technological analysis of the chopper industry from previous work in the Lampang area prompted us to undertake new surveys in continental Southeast Asia in order to help clarify the route and timing of Pleistocene human expansions in this part of the world.

Figure 2. Stone tools recovered from Mae Tha South (MTS and L) and Ban Don Mun (BDM) by the Thai-American expedition in northern Thailand. MTS 86-1: Bifacial cobble tool with a convergent cutting edge; MTS 86-2: Large cobble tool with a straight, transverse cutting edge created by bifacial retouch; MTS 86-3: Unifacial cobble tool with a convergent cutting edge; L-1: Unifacial cobble tool with a convex, transverse cutting edge; L-2: Unifacial cobble tool with a transverse, oblique cutting edge; L-3: Longitudinally fractured cobble. BDM86-1: Unifacial cobble tool with a transverse, obliquely denticulated cutting edge.

Figure 5. Diacritic diagrams of MTS-86-1 and MTS-86-2 cobble tools.

Figure 7. Trihedral pick (BDM n°09).

Figure 8. Artifacts collected by the Thai-French Paleosurvey from Ban Don Mun locality.