What are the early features of Sanxingdui cultural relics?

The general characteristics of the early ruins of Xingdui site can be summarized as follows. ?

1. pottery. Mainly for argillaceous gray pottery and sandy brown pottery two categories. Among the gray pottery, argillaceous celadon pottery and gray-white Tao Wei are the most. Brown pottery has a polished black pottery surface; There are black pottery with black inside and brown outside, and some with black inside and brown outside. In addition, there are a certain number of orange pottery. The shape of the container mainly includes serrated edge jar, lace edge jar, large lapel bell jar, small hole ring bean with opening, etc. Among them, there are many exquisite and polished ritual vessels. Pottery is made by hand, but the wheel system also accounts for a certain proportion. Multi-flat bottom device and foot ring device. Some flat-bottomed devices have a thick bottom that looks like a false circle. Decorative patterns include rope pattern, basket pattern, overlapping rope pattern, grid pattern, grain pattern, line hole, thin chord pattern, tooth pattern and so on. ?

2. Stone and jade. Stone tools are the main production tools, mainly axes, hoes and chisels, with small shapes and exquisite processing. It reflects that this period has been out of the extensive agricultural stage and a more advanced agricultural economy has emerged. The high development of agriculture puts forward technical requirements for the fine processing of production tools, and also prepares conditions for the later production of exquisite jade etiquette utensils. ?

During this period, there have been small jade ritual vessels such as Yubi, Yuhuan and Yugui. Jade tooth, jade cone, jade spear, opal ball, etc. Unearthed in the tomb of Rensheng Brick Factory. ?

3. Building construction. Dig a ditch in the ground, build a wooden and mud wall, put the grass and mud on both walls together, and barbecue with fire. ?

4. Religious consciousness. There is a foundation pit at the foundation of the house, with young people or children as the cornerstone; Twenty-two tombs with the same pit were found in the site of Shengren Brick Factory. Some of them were buried with straight limbs, while others had incomplete skeletons and seemed to have been dismembered. Some pits are buried with dismembered animal sacrifices, and the pit walls and bottom are repeatedly rammed or slapped, and it seems that the human body and animal sacrifices in the pits have also been rammed or slapped. This is a special burial method, and its nature needs further study. ?

5. Appearance of the city: Rammed earth walls have generally appeared in Chengdu Plain and other relics in the early Sanxingdui period. None of the cities in these ancient city ruins formed the central capital like Sanxingdui ancient city, only the early remains of Sanxingdui developed into the central capital of Shu, and finally created the dazzling bronze civilization in the late Sanxingdui period. ?