From April 1982 to January 1983,the Sichuan Provincial Cultural Relics Management Committee and the Guanghan County Cultural Center carried out two rescue archaeological explorations at the area of Yuanjiayuan at the Sanxingdui site.The exploration identified the remains of a pottery kiln and a rectangular building with a large amount of carbide and red burnt earth blocks.In addition,the stratigraphic accumulation of the third phase later than 1980 and the continuous connotation characteristics were also discovered,which laid the basic framework of the"four-period"staging system of the Sanxingdui site.
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