• 责任者：Meng Qingguo (Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology ; Ministry of Land and Resources ; Qingdao 266071 ; China) ; Liu Changling
• 刊名：Geological Bulletin of China
• 出版年：2011
• 卷期：30(12)
• 关键词：天然气水合物 ; gas hydrates ; 激光法 ; laser methods
• 页码：p.1863-1867
• 图表：7 illus., 1 table, 20 refs.
• 分类号：1003
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

///Natural gas hydrates recovered from the Juhugeng ore district in the Muli coalfield of the Qilian Mountain were investigated by micro-Raman spectroscopy at 77K and ambient pressure, and the representative Raman spectra of the natural gas hydrates in the permafrost were obtained. Based on a detailed analysis of the Raman spectra and consulting the literatures available, the authors preliminarily judge that all of the hydrates at three different depths are of sⅡ. Furthermore, the spectral lines of different gas molecules trapped in the hydrates were identified by their characteristic vibration signatures, and the approximate components of the guest gases were determined.