Abstract
This paper examines how microblade technology emerged in North China based on the case study of the newly excavated Xishi and Dongshi sites in the hinterland of North China. Used as the lithic production area, Xishi and Dongshi sites generated abundant lithic debris which show the presence of a precocious form of microblade techno-complex embedded within the blade techno-complex. Radiocarbon dating suggests that they are among the earliest microblade sites ever found in North China. A chaine operatoire approach is used to analyze the lithic assemblage of these two sites to investigate the specific features of the precocious form of microblade technology and its correlations to blade technology. The results indicate that the precocious microblade assemblage shows close technical affinity with the blade assemblage but is different from blade technology due to the frequent appliance of the pressure method to produce smaller end products from more diminutive cores. It indicates that the emergence of microblade technology in North China was a local technological innovation based upon blade technology which diffused from Siberia-Mongolia. Its appearance reflects a culturally meditated technological adaptation to cope with environmental change during LGM (Last Glacial Maximum) period.
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