摘要
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。
A remarkable number of turquoise artifacts recovered from Erlitou site and thousands pieces of turquoise found in the official workshop outside the palace ruin suggest that the noble ancestors had a sustained resource of valuable turquoise at that time. It is presumed that Erlitou＇s nearest possible source of turquoise, Shanxi, Hubei, Henan turquoise deposit, which is divided into three ore belt from North to South. Lots of turquoise mines occur in the North zone, among which some have long history of exploitation. The transport is convenient between the site and the mines in North zone. The Yungaisi turquoise mine is typical one in the North belt,and about 300km to Erlitou site. Qingu turquoise mine is the biggest one on the South ore belt. However, people need to cross the steep middle ore belt to get to Erlitou site. We investigated the Yungaisi turquoise mine in the North ore belt in 2011 and Wenfeng, Qingu turquoise mine in the South ore belt in 2012. Samples from Erlitou site and Yungaisi turquoise mine were analyzed by Scanning electron microscope （ SEM ） , Electron probe micro-analyzer （EPMA） , X-ray diffraction （ XRD ） , Fourier transform infrared spectroscopy （ FTIR）, and Multiple collector inductively coupled plasma mass spectrometry （ MC-ICP-MS, REE distribution pattern）in 2012. Five samples from Erlitou site,three samples from Yungaisi turquoise mine,four samples from Qingu turquoise mine and four samples from Wenfeng turquoise mine were analyzed by MC-ICP-MS （ δ5c u/δ3c u ）. The result from SEM（Fig.7）and EPMA（Table 1 ）show that all samples are turquoise. The result from XRD （Fig.8a） and FTIR （Fig.8b; Table 2）indicate that some turquoise samples from Erlitou site （ELT-2 and ELT-3）and Yungaisi（YX-5 and YX-6）display evidence from weathering processes. The results from the MC-ICP-MS analyses（Fig. 10; Table 5）show that the turquoise from a single mine has a relatively homogenous copper isotopic composition, and the values for each mine are distin
出处
《第四纪研究》
CAS
CSCD
北大核心
2014年第1期212-223,共12页
Quaternary Sciences
基金
国家自然科学基金项目(批准号:41302001)
2011年度国家社科基金重大项目(批准号:11&ZD183)
科技部国家科技支撑计划项目(批准号:2013BAK08B03)
国家博士后科学基金项目(批准号:2012M520532)共同资助
关键词
二里头遗址
绿松石
探源
铜同位素
Erlitou site, turquoise, provenance, Cu isotopes
