Hao Xi-Luo, Zhu Tie-Quan, Xu Jin-Jin, Wang Yan-Rong, Zhang Xuan-Wei
The Key Laboratory of Gas Hydrate, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao, 266071, China.
Department of Earth Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
Microsc Res Tech. 2018 May;81(5):486-493. doi: 10.1002/jemt.23002. Epub 2018 Feb 12.
"Nanhai I" shipwreck of China Southern Song Dynasty is the oldest and the most integrally preserved shipwreck in the world. The related conservation and archeological research have caught great attention of different experts all over the world. In this study, different types of concretion covered on the surface of the ceramics in "Nanhai I" shipwreck were analyzed by X-ray diffractometer, micro-Raman spectrometer, and scanning electron microscope equipped with energy dispersive spectroscopy. Based on the analyses, we found that the grey concretion was mainly composed of quartz, aragonite, and calcite while the reddish concretion was mainly composed of pyrite and quartz. Our study indicated that the formation process of the grey concretion probably included the crystallization and transformation of aragonite, while the corrosion of iron implements and crystallization of pyrite were highly involved in the formation of reddish concretion.
中国南宋时期的“南海Ⅰ号”沉船是世界上最古老且保存最为完整的沉船。相关的保护与考古研究引起了世界各地不同专家的高度关注。在本研究中，利用X射线衍射仪、显微拉曼光谱仪以及配备能谱仪的扫描电子显微镜，对“南海Ⅰ号”沉船陶瓷表面覆盖的不同类型凝结物进行了分析。基于这些分析，我们发现灰色凝结物主要由石英、文石和方解石组成，而红色凝结物主要由黄铁矿和石英组成。我们的研究表明，灰色凝结物的形成过程可能包括文石的结晶与转变，而铁器的腐蚀和黄铁矿的结晶在红色凝结物的形成过程中起到了重要作用。
