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[R1P-10] Mineralogy of garnet from Mt. Kutsuna, Matsuyama, Ehime Prefecture
Keywords:garnet, Mt. Kutsuna, almandine, spessartine, garnet-biotite geothermometer
Garnet from the west coast of Mt. Kutsuna, Kitayoshida-cho, Matsuyama, Ehime Prefecture shows various properties such as color, grain-size, and shape. We describe the geology of Mt. Kutsuna and mineralogical properties of the garnet. The mineral species of garnet were almandine and spessartine bearing minor Mg, and Ca. Core-rim textures with inclusion were also observed. The metamorphic temperatures of the hornfels were estimated at 510 to 620 ℃ by garnet-biotite geothermometry.