CARBONIFEROUS-PERMIAN BOUNDARY BEDS AND FUSULINID ZONES AT XIAODUSHAN, GUANGNAN, EASTERN YUNNAN |
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摘 要: | The Xiaodushan section is situated at about 5 km from the Babao village in Guangnan County in eastern Yunnan. In this section, the stratigraphic suecession from Lower Carboniferous to Middle Permian is continuous and ex-
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