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为了对三星堆祭祀坑出土的金器成分有一个了解,从出土的金器上取得了样品。本文描述了从三星堆祭祀坑出土的14件金器上获得样品的厚度和重量,以及使用电子探针对样品进行了成分分析。分析结果表明:出土的金器是金银合金,它们的成分是:金为82.451%～86.194%,银为11.006%～14.795%,钡为1.270%～1.947%和一些微量元素。这批金器采用砂金矿料,熔炼成金银合金,经过锻打或碾压成型。根据特征元素钡的存在,初步推断砂金矿料可能来自今四川省盐源县洼里砂金矿,这里是理塘河与雅砻江(长江上游金沙江的支流)的交汇处。
In order to have an understanding of the gold content of the Sanxingdui sacrificial pits, samples were taken from the excavated gold objects. This article describes the thickness and weight of the sample obtained from 14 gold excavated from the Sanxingdui sacrificial pit and the composition of the sample using an electron probe. The results show that the excavated gold is gold and silver alloy. Their composition is: gold is 82.451% ~ 86.194%, silver is 11.006% ~ 14.795%, barium is 1.270% ~ 1.947% and some trace elements. This group of gold using gold ore materials, smelting into gold and silver alloy, after forging or rolling molding. According to the presence of Ba, a characteristic element, it is preliminarily concluded that the Au-Au deposit may originate from the Wallyisha Gold Mine of Yanyuan County, Sichuan Province, where the Litang River meets the Yalong River, the tributary of the Jinsha River in the upper reaches of the Yangtze River.