安徽某地出土古玉的宝石矿物学研究

发布时间：2018-03-04 02:14

  本文选题：矿物成分　切入点：结构　出处：《中国地质大学(北京)》2017年硕士论文　论文类型：学位论文

【摘要】：我国有着灿烂悠久的和田玉文化发展历史,其中安徽境内大量出土了不同历史时期的古玉资源。作为众多的和田玉文化板块中最具代表性的一个区域,安徽古玉的纹饰、形制、资源都颇具地方特色。和田玉的使用已有八千余年的历史,古玉的鉴定、物质组成及玉石源矿区研究同样是目前国内研究的一个难点和热点。因此,为了建立一套完整的和田玉古玉来源的研究体系,选取安徽某地出土古玉样品借助考古学、宝石学及加工工艺等研究方法和专业知识,对这些玉石的相关方面进行综合研究,得出古玉的鉴定、纹饰、形制、产地来源特征等方面有效信息。本文研究从微量元素、同位素和成因方向尝试探讨玉石成因及来源并建立一套研究古玉的方法。论文首先对安徽古玉样品表面特征和纹饰进行描述,其次通过X光粉晶衍射、电子探针、BSE图像、ICP-MS和同位素质谱对古玉的矿物组成、矿物成份、形成过程、微量元素组成及氧同位素组成进行了分析,最终在以上基础上分析古玉的成因并与新疆主要和田玉矿床相关数据进行对比。结果显示这些古玉主要由透闪石组成,并含有少量的透辉石、石英。显微镜观察及BSE图像分析等岩相学研究表明,古玉样品中透闪石的成因特点与和田玉样品的成因类似,古玉样品的微量元素(Cr:2.22~5.09ppm、Ni:0.05~2.46ppm)、氧同位素(δ~(18)OV-SMOW 3.5~4.9‰)组成与采自阿拉玛斯、白玉河和墨玉河、新藏公路392矿床、且末矿床的和田玉样品的特征吻合性较好,因此,安徽古玉样品很有可能来源这些地区。通过综合分析判断,这些古玉主要产于镁质矽卡岩矿床。
[Abstract]:China has a splendid and long history of the development of Hetian jade culture, in which a large number of ancient jade resources of different historical periods have been unearthed in Anhui. The use of Hetian jade has a history of more than 8,000 years. The identification of ancient jade, the material composition and the study of jade source area are also a difficult point and hot spot in our country. In order to establish a complete research system on the origin of ancient Hetian jade, a sample of ancient jade unearthed from a certain place in Anhui Province was selected to conduct a comprehensive study on the relevant aspects of these jade with the aid of archaeology, gemmology and processing technology and other research methods and professional knowledge. The effective information of identification, decoration, shape and origin of ancient jade is obtained. Isotopes and genetic directions attempt to explore the origin and origin of jade and establish a set of methods to study ancient jade. Firstly, the surface features and ornaments of Anhui ancient jade samples are described, and then X-ray powder diffraction is used. The mineral composition, mineral composition, formation process, trace element composition and oxygen isotope composition of ancient jade were analyzed by ICP-MS and isotope mass spectrometry. Finally, on the basis of the above analysis, the origin of ancient jade is analyzed and compared with the relevant data of the main Hetian jade deposits in Xinjiang. The results show that the ancient jade is mainly composed of tremolites and contains a small amount of diopside. The petrographic studies such as quartz, microscope and BSE image analysis show that the genetic characteristics of tremolites in ancient jade samples are similar to those of Hetian jade samples. The trace element Cr: 2.2255.09ppm ~ (1) Ni: 0.05 ~ 2.46 ppm ~ (-1) and oxygen isotopes (未 ~ (18) O ~ (V-SMOW) 3.54.9 鈥，

本文编号：1563695