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二里头遗址自发掘以来出土了大量绿松石器,围垣作坊区出土了数千件绿松石原料,说明二里头先民拥有稳定的绿松石来源。在考察鄂、豫、陕绿松石矿的北矿带和南矿带的基础上,对出土绿松石样品和采集样品进行铜同位素组成、稀土元素配分、显微结构、化学成分及物相等分析。根据测试结果,初步确定北矿带的云盖寺矿是二里头遗址出土绿松石的矿源之一。比较测试效果,铜同位素结合稀土元素分析在古代绿松石的产地示踪上更具确定性,而显微结构、化学成分及物相分析等方法可进一步用于出土绿松石的次生变化机理研究。
Erlitou site since excavation unearthed a large number of turquoise, siege workshop area unearthed thousands of pieces of turquoise raw materials, Erlitou ancestors have a stable source of turquoise. Based on the investigation of the northern ore belt and the southern ore belt in Hubei, Henan and Shanxi Turquoise Mines, the isotopic composition of copper, the distribution of rare earth elements, the microstructure, the chemical composition and the content of turquoise were unearthed. According to the test results, it is initially determined that the Yunjisi Mine in the northern ore belt is one of the sources of turquoise unearthed at Erlitou site. Compared with the test results, copper isotope analysis combined with REE analysis is more certain in the tracing of turquoise origins in ancient times. However, microstructure, chemical composition and phase analysis can be used to further study turquoise secondary mechanism .