• 责任者：Zou Huijuan (State Key Laboratory of Geological Processes and Mineral Resources ; Faculty of Earth Sciences ; China University of Geosciences ; Wuhan 430074 ; China) ; Ma Changqian
• 刊名：Acta Geologica Sinica
• 出版年：2011
• 卷期：85(3)
• 关键词：花岗闪长岩 ; granodiorites ; 湖南 ; Hunan Province
• 页码：p.366-378
• 图表：8 illus., 5 tables 41 refs.
• 分类号：0801
• issnNo：ISSN0001-5717
• isbnNo：CN11-1951/P

 Exposed in the southeastern margin of Yangtze Block, Mufushan complex batholith has an emplacement age of 145 Ma (Zircon U-Pb). Granodiorite and its mafic microgranular enclaves from the batholith contain characteristic monocrystalline epidotes. Most of these epidotes are idiomorphic, featured frequently with melting corrosion structure and occasionally with allanite-rich cores. The Ps values ((100Fe³⁺/(Fe³⁺+Al)) of both kinds of epidotes mainly fall between 26 and 28,  while TiO₂ contents of these epidotes are less than 0.2%. It is suggested that these epidotes are magmatic genesis. The results from petrographic study suggest that the crystallization order in both granodiorite and mafic microgranular enclaves begins with amphibole and epidote, and then comes biotite, plagioclase and other minerals.