• 责任者：Ai Hao (State Key Laboratory of Ore Deposit Geochemistry ; Institute of Geochemistry ; Chinese Academy of Sciences ; Guiyang 550002 ; China) ; Chen Tao
• 刊名：Acta Petrologica et Mineralogica
• 出版年：2011
• 卷期：30(2)
• 关键词：锆石 ; zircon ; 宝石 ; gems ; 黑龙江省 ; Heilongjiang Province
• 页码：p.313-324
• 图表：7 illus., 2 tables, 61 refs.
• 分类号：0700
• issnNo：ISSN1000-6524
• isbnNo：CN11-1966/P

Using classical gemological methods, UV-Vis-NIR, FTIR, LA-Raman spectra, cathode luminescence images, and LA-ICP-MS gemological properties, this paper systematically studied spectroscopic features, melt inclusions, trace elements and U-Pb radioactive ages of gem-quality zircon megacrysts found in alluvia of Tertiary alkali basalt deposits associated with Cenozoic basalts from Muling in Heilongjiang Province, which are distributed along the middle-northern section of Dunhua-Mishan fault, the northern branch of Tanlu fault between Xing-Meng orogenic belt and Pacific subduction zone. Based on this study in combination with data obtained by other authors, the authors hold that Muling Cenozoic alkali basalt-related megacryst zircons might have originated from depleted metasomatized lithospheric mantle related to the oxidization conditions of CO₂ fluid enrichment and resulted from retrogression of lithospheric thinning.