supported by the National Natural Science Foundation of China(Grant Nos.40171096 and 49831080);the Ministry of Science and Technology of China(Grant No.2001BAS05B05).
Lajia Site, located near the upper reaches of the Yellow River and the border of Qinghai Province and Gansu Province, is a large-scale site of the Qijia Culture. In 2000 and 2001, archaeologists excavated an unusual s...