Technological and functional analysis of Upper Palaeolithic backed micro-blades from southern Oman

While a considerable amount of information on the Pleistocene human occupation of South Arabia has been gathered by archaeologists over the course of the last decades, little is known about the Upper Palaeolithic period and its local specificities. This is evidently a function of the still poor archaeological record for this period and the difficulties in finding stratified and therefore datable occurrences in general. Here, we present the traceological and technological analysis of the stone tools from one of the few archaeological sites in Oman dating between 33,000 to 30,000 years ago, which has yielded a small but important assemblage of backed tools initially suggested to be projectiles. The bi-pointed backed micro-blades from Mutafah 1 share specific technological and morphological features making it germane to suggest comparable operational sequences for the manufacture of these pieces. Our analysis, which identified specific traces of use related to both hunting and domestic activities, as well as microscopic residues on the backed micro-blades, indicates that the Mutafah 1 tools were part of a toolkit with wide applications reflecting the highly opportunistic nature of the Upper Palaeolithic human occupation of South Arabia