The existence of phengites in the metamorphic siliceous rock indicates that it was formed through middle-high pressure metamorphism.
岩石中多硅白云母的存在显示其曾经受了中-高压的变质作用。
The existence of phengites in the metamorphic siliceous rock indicates that it was formed through middle-high pressure metamorphism.
岩石中多硅白云母的存在显示其曾经受了中-高压的变质作用。
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