In April-July 2004, the Research Group of the “Excavation and Study of the Longshan Culture Site at Jiaochangpu in Chiping, Shandong” jointly organized by the Shandong Archaeological Team. IA,CASS, the Shandong Provincial Institute of Cultural Relics and Archaeology, and the Liaocheng Municipal Bureau of Culture carried out four periods of excavation on the site. Thev revealed remains of city-walls of the late Shandong Longshan culture and traces of sacrificial pits related to them. The discovery of this city-site is of great significance. The western Shandong area was the juncture of the territories of the Dongyi and Huaxia cultural blocs,so its cultural contents were rather complex, and the relationship between the two great blocs has been in the cen ter of scholars' attention. The Jiaochangpu City of Longshan culture may have merged in the peculiar conditio.
The large-mouthed zun vase is an important pottery vessel type in the Dawenkou culture. Inquiry into its producing areas contributes greatly to the revelation of the cultural relationship among the relevant sites and to the clarification of the origin and spreading lines of this vessel. By using the ICP, petrography and Fisher analyses, the large-mouthed pottery zun vases of the Dawenkou culture unearthed from the Yuchisi site in Mengeheng of Anhui and from the Zhoujiazhuang and Dazhujiacun sites in Juxian county of Shandong have been preliminarily studied as to their producing areas and cultural source. The results show that the large-mouthed vases from Shandong Juxian are locally produced, while those from the Yuchisi site involve rather a vast region concerning their production, and some of them are similar to the specimens from Juxian, which suggests certain cultural linkage between the two areas.