【摘要】 四川省广汉三星堆遗址出土了大量玉石器，为了确定三星堆遗址中蛇纹石质玉石器的原料来源，在研究成都平原周缘地质背景的基础上，对三星堆遗址蛇纹石质玉石器和大玉料、湔江河道蛇纹岩样品及龙门山构造带的彭州大宝山地区蛇纹岩样品的宏观特征、显微特征、矿物及岩石组合特征进行研究，采用X射线荧光光谱仪进行大玉料和彭州大宝山地区代表性蛇纹岩样品的化学成分测定，并与前人公布的三星堆蛇纹石质玉石器、彭州蛇纹岩的化学成分进行对比，结果表明三星堆蛇纹石质玉石器、大玉料、湔江河道和大宝山地区蛇纹岩样品在颜色、结构、构造、硬度、主要矿物组分和含量、化学成分特征等方面相同或相近。在综合分析蛇纹岩矿产资源、代表性岩石样品特征的基础上，结合古代史料，认为三星堆遗址蛇纹石质玉石器的石料应该主要来源于彭州大宝山地区的蛇纹岩。更多还原

【Abstract】 This paper mainly studies the material sources of a large number of jade stone implement excavated from Sanxingdui Site, Guanghan County, Sichuan Province. According to the geological background of the perimeter of Chengdu Plain, the serpentine jade stone implement and large jade materials from Sanxingdui Site, the serpentine jade stone tool samples from the Jianjiang River bed and Dabaoshan area of Pengzhou structural belt are studied from the aspects of macroscopic, microscopic, mineral and rock combination characteristics. X-ray fluorescence spectrometer(XRF) is used to determine the chemical composition of large jade material and representative serpentine samples from Dabaoshan area of Pengzhou, and the chemical composition of Sanxingdui serpentine jade stone and Pengzhou serpentine is compared with that of Sanxingdui serpentine jade stone and Pengzhou serpentine. The results show that the color, texture, structure, hardness, mineral composition and chemical composition characteristics of serpentine jade samples and large jade material from Sanxingdui Site, serpentine from Jianjiang River bed and Dabaoshan area are almost the same or similar. Based on the comprehensive analysis of serpentine mineral resources and characteristics of representative rock samples, combined with the synthese of ancient historical data, it is believed that the serpentine jade stone materials of Sanxingdui Site mainly come from serpentine rocks in Dabaoshan area of Pengzhou in the Longmenshan structural belt.更多还原