Study on ClayM inera ls of P/T Boundary in Meishan Section,Changxin, Zhejiang Province

YU Kai-ping; HAN Guang-min; YANG Feng-li; Mansy J L; XU Chang-hai; ZHOU Zu-yi; CHENG Xin-rong; LIU Zhi-fei; FU Qiang

By ana lyzing the c layminerals of P /T boundary inMeishan Section show that the paragenetic association has no re lationsh ip to crystalization, but con incides with the change of formations and members, wh ich re flect the change of c limate, source and geography. IC has no notab le regu lar variation; otherwise, nomatter the paragentic as2 soc iation or IC have changed evidently, ind icate that pH and temperature have changed acu tely, which may result in themass extinction of the Permianmarine invertebrates at the end of Permian.

1. Laboratory of Marine Geology, Tongji University,Shanghai 200092;

2. 2 Geological Society of Belgium,1000 Brussels Belgium;

3. 3 Laboratoire de S dimentologie et G odynamique, UMR 8577 CNRS, Universit des Sciences et Technologies de Lille,59655 Villeneuve d,Ascq Cedex, France

Received Date: 2004-03-09

Rev Recd Date: 2004-08-01

Publish Date: 2005-03-10

Key words:

Abstract: By ana lyzing the c layminerals of P /T boundary inMeishan Section show that the paragenetic association has no re lationsh ip to crystalization, but con incides with the change of formations and members, wh ich re flect the change of c limate, source and geography. IC has no notab le regu lar variation; otherwise, nomatter the paragentic as2 soc iation or IC have changed evidently, ind icate that pH and temperature have changed acu tely, which may result in themass extinction of the Permianmarine invertebrates at the end of Permian.

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Study on ClayM inera ls of P/T Boundary in Meishan Section,Changxin, Zhejiang Province

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