b0 VALUES OF MUSCOVITES AND METAMORPHIC BELTS OF DABIE MOUNTAINS METAMORPHIC TERRAINS

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<正> The geological block of Qinling-Dabie (秦岭—大别) Mountains is situated between the North China and Yangtze Platforms and is of great geological importance. In 1976, Yeh Danian (叶大年) discovered for the first time the types 3T- and 2M-phengites at th
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