本文選題：礦物成分　切入點(diǎn)：結(jié)構(gòu)　出處：《中國(guó)地質(zhì)大學(xué)(北京)》2017年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：我國(guó)有著燦爛悠久的和田玉文化發(fā)展歷史,其中安徽境內(nèi)大量出土了不同歷史時(shí)期的古玉資源。作為眾多的和田玉文化板塊中最具代表性的一個(gè)區(qū)域,安徽古玉的紋飾、形制、資源都頗具地方特色。和田玉的使用已有八千余年的歷史,古玉的鑒定、物質(zhì)組成及玉石源礦區(qū)研究同樣是目前國(guó)內(nèi)研究的一個(gè)難點(diǎn)和熱點(diǎn)。因此,為了建立一套完整的和田玉古玉來(lái)源的研究體系,選取安徽某地出土古玉樣品借助考古學(xué)、寶石學(xué)及加工工藝等研究方法和專(zhuān)業(yè)知識(shí),對(duì)這些玉石的相關(guān)方面進(jìn)行綜合研究,得出古玉的鑒定、紋飾、形制、產(chǎn)地來(lái)源特征等方面有效信息。本文研究從微量元素、同位素和成因方向嘗試探討玉石成因及來(lái)源并建立一套研究古玉的方法。論文首先對(duì)安徽古玉樣品表面特征和紋飾進(jìn)行描述,其次通過(guò)X光粉晶衍射、電子探針、BSE圖像、ICP-MS和同位素質(zhì)譜對(duì)古玉的礦物組成、礦物成份、形成過(guò)程、微量元素組成及氧同位素組成進(jìn)行了分析,最終在以上基礎(chǔ)上分析古玉的成因并與新疆主要和田玉礦床相關(guān)數(shù)據(jù)進(jìn)行對(duì)比。結(jié)果顯示這些古玉主要由透閃石組成,并含有少量的透輝石、石英。顯微鏡觀察及BSE圖像分析等巖相學(xué)研究表明,古玉樣品中透閃石的成因特點(diǎn)與和田玉樣品的成因類(lèi)似,古玉樣品的微量元素(Cr:2.22~5.09ppm、Ni:0.05~2.46ppm)、氧同位素(δ~(18)OV-SMOW 3.5~4.9‰)組成與采自阿拉瑪斯、白玉河和墨玉河、新藏公路392礦床、且末礦床的和田玉樣品的特征吻合性較好,因此,安徽古玉樣品很有可能來(lái)源這些地區(qū)。通過(guò)綜合分析判斷,這些古玉主要產(chǎn)于鎂質(zhì)矽卡巖礦床。
[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，

本文編號(hào)：1563695