甘肃岷县占旗遗址出土寺洼文化铜器的初步科学分析

A Preliminary Scientific Analysis of Copper and Bronze Artifacts from the Zhanqi Site,Minxian County,Gansu

本文对甘肃岷县占旗遗址出土的30件铜器进行了科学分析研究,初步探讨了该遗址出土铜器的技术特征:材质以铜锡铅三元合金为主,铅含量普遍较高;制作工艺以铸造为主,少量器物为锻制而成。这一特征与陇南地区早期齐家文化的铜器相比存在差异,以铜锡铅三元合金为主导的铜器技术在陇南地区洮河流域出现的时代最早,可能受到齐家文化及中原地区青铜文化等多元因素的影响。本研究首次揭示了洮河流域寺洼文化铜器的技术特征,为深入探讨甘青地区早期青铜技术的发展及寺洼文化与周边地区青铜文化的交流互动提供了新的科学依据。

Thirty metal objects excavated from the Zhanqi site in Minxian County,Gansu were analyzed by using SEMEDS and metallographic analysis. The results show that Cu-Sn-Pb alloys are the predominant material with a relatively high content of lead. Metallographic examination reveals that most of bronze objects were made by casting,with some being shaped by forging. This characteristic feature suggests some differences with the bronzes of the earlier Qijia culture in the southern Gansu region. It is also suggested that the Zhanqi metals may have received some influences from the Qijia culture as well as bronze cultures in the Central Plain of China. This research presented in this paper provides new scientific evidence for understanding the development of early bronze technology and cultural connections in southern Gansu and its neighboring regions.