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End-Permian catastrophicevent of marine acidification by hydrated sulfuric acid: Mineralogical evide
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
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The event Permian-Triassic boundary (EPTB) is well marked by the famous "white clay" of bed 25 in Meishan section locate......