... Middle Cretaceous 中白垩世 Middle Devonian Epoch 中泥盆世 Middle Devonian Series 中泥盆统 ...
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There are relatively more tetrahedrite group minerals in gold deposits occurring in the interstratified fractured belt of Middle Devonian carbonate rock series in western Shimian of Sichuan Province.
四川石棉西部碳酸盐岩系中的金矿床产于泥盆系中统，受层间蚀变破碎带控制。
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