| 东海陆缘(闽北段)晚第四纪沉积的硅藻学研究 |
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| 引用本文： | 王开发,支崇远,郑玉龙,王洪根.东海陆缘(闽北段)晚第四纪沉积的硅藻学研究[J].沉积学报,2002,20(1):136-143. |
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| 作者姓名： | 王开发 支崇远 郑玉龙 王洪根 |
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| 作者单位： | 1 同济大学海洋地质与地球物理系,上海,200092; |
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| 基金项目： | 国家自然科学基金，40076016， |
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| 摘 要： | 对东海陆缘 (闽北段 )晚第四纪沉积 4口钻井岩心进行系统的硅藻分析研究,获得丰富的硅藻化石,共发现硅藻 117种和变种,分属于 33个属。根据剖面硅藻组合特征变化,结合最优分割法和对应序分法的计算机运算结果,可以详细划分为 12个硅藻带,自下而上为 :1.Cascinodiscusargus-Cos.wittiomus-Cyclotellastriata硅藻带,2.Cos.blandus-Cyclotellastriata硅藻带,3.Cos.excentricus-Trbliepteychuscocconiformis硅藻带,4.Gomphonema-Cos.blandus-Actnolychusralfsii硅藻带,5.Cos.-Cyclotellastriata-Actinocyclusralfsii硅藻带,6.Cos.-Actinolychusralfsii硅藻带,7.贫乏硅藻带,8.Cos.lineatus-Cos.rothii-Actinolyclusralfsii硅藻带,9.Gomphonema-Cyclotellastriata-Cocconeisplacentulavareuglypta硅藻带,10.Cos.rothii-Cyclotellastriata-Actinolychusralfsi,11.Cymbel laaffinis-Cyclotellastriata-Gomphonema硅藻带,12.Coscinodiscuswittinus-Cyclotellastriata-Epithemiahynd manii硅藻带,建立了该区晚第四纪硅藻组合序列,并探讨其相应的古环境演变。
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| 关 键 词： | 东海陆缘 闽北段 晚第四纪 沉积硅藻 |
| 文章编号： | 1000-0550(2002)01-0135-09 |
| 收稿时间： | 2001-04-13 |
| 修稿时间： | 2001年4月13日 |
The Study on Diatom of Late Quaternary Sediment in the Continental Margin of the East China Sea (Northern Fujian Member) |
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| WANG Kai-fa,ZHI Chong-yuan,ZHENG Yu-long,WANG Hong-gen.The Study on Diatom of Late Quaternary Sediment in the Continental Margin of the East China Sea (Northern Fujian Member)[J].Acta Sedimentologica Sinica,2002,20(1):136-143. |
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| Authors: | WANG Kai-fa ZHI Chong-yuan ZHENG Yu-long WANG Hong-gen |
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| Institution: | 1 Deptartment of Marine Geology & Geophysics,Tongji University, Shanghai 200092;2 Institute of Oceanography, State Oceanic Administration, Hangzhou 310012 |
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| Abstract: | The sediment of 4 well's cores of late Quaternary at the continental margin of East China Sea have been systimatically researched, and abundant fossils of diatom, 117 species and varieties in 33 genus, have been found. 12 of diatom zones have been divided according to the characteristics of the diatom pattern, theoptimac Sparation and the corresponding order.They are from buttom to top: 1. Cascinodiscus argus-Cos. wittiomus-Cyclotella striata,2. Cos. blandus-Cyclotella striata diatom zone,3. Cos.excenfricus-Trbliepteychus cocconiformis diatom zone,4. Gomphonema-Cos. blandus-Actnolychus ralfsii diatom zone,5. Cos.-Cyclotella striata-Actinocyclus ralfsii diatom zone,6. Cos. -Actinolychus ralfsii diatom zone,7. diatom poor zone,8. Cos. lineatus-Cos. rothii-Actinolyclus ralfsii diatom zone,9. Gomphonema-Cyclotella striata-Cocconeis placentula var euglypta diatom zone,10. Cos.rothii- Cyclotella striata-Actinolychus ralfsi dialom zone,11.Cymbella affinis-Cyclotella striata-Gomphonema diatom zone,12. Coscinodiscus wittinus-Cyclotella striata-Epithemia hyndmanii diatom zone. Diatom assemblage order patterns of late Quaternary has been set up and the palaeoenvironment evolvution is discussed. |
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| Keywords: | continental margin East China Sea Northen Fujian Member Late Quaternary diatom of sediment |
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