中文摘要：

从 Meishan 的碳酸盐和器官的碳的高分辨率碳同位素分析，华南证明 13Ccarb 的变化在 Changhsingian 期间由三次大积极旅行是显著的(结束 -- 二叠) 。碳同位素地层学在 13Ccarb 在这个阶段期间显示出三周期的间隔，与相应于的二个周期更低(Paleofusulinid 最小地区) 并且相应于上面的 Changhsingian 的(P。sinensis 地区) 。大积极 13Ccarb 旅行显示同位素地轻的器官的碳的提高的埋葬的事件，大概响应阵发性地与海的上升延续到浅水的深海的血缺氧铺平。器官的碳在 Changhsingian 期间被区分进每组平行的二个组，和 13Corg (独立) 13Ccarb 的更多的详细侧面，强烈证明分别 13Ccab-org 的价值仍然保持相对不变，与仅仅有异例的二间隔。有大否定 13Corg 旅行的提高的分别 13Ccab-org 显然从氧化硫化物的细菌和绿硫细菌显示重要输入，尤其是在床 24 公平早于质量扑灭。我们的证据出现到扩大 euxinic 水为在结束的集体扑灭的主要脉搏是可能的支持 -- 二叠。

英文摘要：

High resolution carbon isotope analyses of carbonate and organic carbon from Meishan, South China showed that the variation of δ13Ccab is marked by three large positive excursions during the Changhsingian （end-Permian）. Carbon isotope stratigraphy during this stage shows three cyclic intervals in δ13Ccarb, with tWO cycles corresponding to the lower （Paleofusulinid minima Zone） and one corresponding to the upper Changhsingian （P. sinensis Zone）. The large positive δ13Ccarb excursions indicate episodes of enhanced burial of isotopically light or- ganic carbon, presumably in response to deep-water anoxia episodically extending into shallow water with the rise of sea level. The organic carbon during the Changhsingian is distinguished into two groups, and the δ13Corg of each group parallels （separately） the more detailed profile of δ13Ccarb, strongly showing that the values of fractionation Δ13fcab_org remain relatively constant, with only two intervals with anomaly. The enhanced fractionation A13fcab.org with large negative δ13Corg excursions apparently indicates significant inputs from sulfide-oxidizing bacteria and green sulfur bacteria, notably at bed 24 just predating mas extinction. Our evidence appears to support that the extended euxinic water is possible for the main pulse of mass extinction at the end-Permian.