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Two phases of the end-Permian mass extinction. Pangea:Global environments and resources.Canadian Society of Petroleum Geologists 期刊论文
Canadian Society of Petroleum Geologists,Memoir, 1994, 期号: 17, 页码: 813-822
作者:  Jin Yugan (金玉玕);  Zhang Jin (张进);  Shang Qinghua (尚庆华)
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Proposal and comment on the definition of Emsian 期刊论文
Canadian Society of Petroleum Geologists,Memoir, 1988, 卷号: 14, 期号: 3, 页码: 179-191
作者:  Yu Changmin (俞昌民);  Ruan Yiping (阮亦萍)
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