华南地区二叠-三叠纪之交火山灰的源区和规模:与生物灭绝事件的关系
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摘要
<正>华南地区二叠-三叠纪之交(Permian-Triassic Boundary,简称PTB)火山灰与生物灭绝事件在层位上高度相关,可能是灭绝事件的触发因素之一,对其成因、来源和规模的研究具有重要科学意义(Xie et al.,2005;He et al.,2014;Gao et al.,2013;Yin et al.,1989)。作者通过对华南若干典型剖面火山灰和火山沉积碎屑岩的岩相学、地球化学、锆石年代学和Hf同位素的研究,结合区域地层资料限定了
引文
Xie S C,Pancost R D,Yin H F,Wang H M,Evershed R P.Two episodes of microbial change coupled with Permo/Triassic faunal mass extinction.Nature,2005,434(7032):494-497
    He B,Zhong Y T,Xu Y G,Li X H.Triggers of Permo-Triassic boundary mass extinction in South China:The Siberian Traps or Paleo-Tethys ignimbrite flareup?Lithos,2014,204:258-267
    Gao Q L,Zhang N,Xia W C,Feng Q L,Chen Z Q,Zheng J P,Griffin W L,O'Reilly S Y,Pearson N J,Wang G Q,Wu S,Zhong W L,Sun X F.Origin of volcanic ash beds across the Permian-Triassic boundary,Daxiakou,South China:Petrology and U-Pb age,trace elements and Hf-isotope composition of zircon.Chemical Geology,2013,360:41-53
    Yin H F,Huang S J,Zhang K X,Yang F Q,Ding M H,Bi X M,Zhang S X.1989.Volcanism at the Permian-Triassic Boundary in South China and its Effects on Mass Extinction.Acta Geologica Sinica,63(2):169-180

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