The stone artifact assemblage included cores, flakes, chunks, choppers and chopping tools, and picks, which were mainly made of quartzite, silicarenite and siltstone. The size of all artifacts was large and most of the tools were retouched on pebbles. The characteristics of these stone artifacts showed very strong ties with the pebble tool tradition of south China.
The stratigraphic observation on vermiculated red soil and the comparison of dating with tektites suggest that these newly discovered localities were formed in early stage of Middle Pleistocene.
These three localities were buried in the same layer of vermiculated red soil. Preliminary analysis illustrates that they show similar technological features, distribute across a broad area and span a limited time range.
Story: Physorg | Photo: XU Xin and LI Feng