| 东亚石炭-二叠纪有孔虫迁移与海水进退规程的相关模式 |
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| 引用本文： | 徐炳川.东亚石炭-二叠纪有孔虫迁移与海水进退规程的相关模式[J].地球学报,1996,17(Z1):155-163. |
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| 作者姓名： | 徐炳川 |
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| 作者单位： | 地质力学研究所，北京 |
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| 摘 要： | 亚洲东部石炭-二叠纪生物地层，沿北纬42°左右存在一条质变线。此线南北海水进退呈现互为消长的关系，反映了海水南北方向的4次活动过程：早石炭世早与早二叠世，自南而北；中晚石炭世与晚二叠世，自北而南。生物最低层位的变化情况，反映了生物也经历了相应的南北方向的4次迁移过程。这种迁移可能与气候的冷暖变化有关，而海水运动可能源于地球自转速率的不均衡，甚至气候的变化最终也是地球自转不均衡的结果。
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| 关 键 词： | 生物迁移 海水进退规程 |
The Canon of Marine Transgression and the Migration of Biotas during the Permo-Carboniferous in Asian East |
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| Xu Bingchuang.The Canon of Marine Transgression and the Migration of Biotas during the Permo-Carboniferous in Asian East[J].Acta Geoscientia Sinica,1996,17(Z1):155-163. |
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| Authors: | Xu Bingchuang |
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| Institution: | Institute of Geomechanics, CAGS, Beijing |
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| Abstract: | 1. According to distribution of the faunas and floras, and the position of palaeoclimatic zones, it can be thought that geolgoraphically the position of the territory of Asian East during the Permo-Carboniferous does not very much differ from that of the present day.
2. On the basis of feature of biotas and strata in distribution, it is posiibly seen that along 42°N. Lat. there is an important boundary. North of the boundary is North Sea, South is South Sea.Situation of tuansgression of the two seas is completely different.
3. There is relation of growth adn decline of transgressions of the two Seas each other. During Early Carboniferous and Early Permian transgression takes place in North Sea, but regresion in South Sea. It shows that the seawater moves south to north ie. the Equator to the Arctic. During the Late Carboniferous and Late Permian the case jusu is opposite.
4. The migration of biotas and the movement of seawater keep in step.The agreement of the two kinds of motion means that there is certainly a more profound intermediate tie between the two. This tie had been hinted as climatic change by J. S. Lee rotation of the earth. But it has already gone beyond the limit of this paper . |
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| Keywords: | migration of biotas canon of marine transgression |
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