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| 长江口北支有孔虫组合及其环境意义 | |
| 引用本文： | 周开胜,孟翊,刘苍字,洪雪晴.长江口北支有孔虫组合及其环境意义[J].沉积学报,2009,27(2):334-342. |
| 作者姓名： | 周开胜 孟翊 刘苍字 洪雪晴 |
| 作者单位： | 1. 蚌埠学院食品与生物工程系,安徽蚌埠,233030;华东师范大学地理系,上海,200062 2. 华东师范大学河口海岸国家重点实验室,上海,200062 3. 华东师范大学地理系,上海,200062 |
| 基金项目： | 国家重点基础研究发展规划(973计划)，国家自然科学基金，国家自然科学基金青年基金，安徽省自然科学基金，蚌埠学院自然科学研究项目，蚌埠学院优秀人才计划专项资助 |
| 摘 要： | 通过对长江口北支XL1、XL2和CY孔有孔虫组合进行对比分析,综合沉积物粒度特征和环境磁学特征,探讨了长江口北支沉积环境水动力条件演变特点.揭示了长江口北支各沉积相所对应的有孔虫组合,即潮流沙脊以E. naraensis、E. magellanicum和F. decorus组合为主;潮汐水道以A. convexidorsa、E. naraensis、E. magellanicum 和A. beccarii vars.组合为主;潮滩有孔虫组合则以A. beccarii vars.、E. magellanicum、E. naraensis和滨海沼泽特征种T. inflata及J. macrescens组合为主;河口沙坝则以A.beccarii vars.、E.naraensis等组合为主的沉积特征. |
| 关 键 词： | 长江口北支 有孔虫 沉积环境 |
The Foraminiferal Assemblages and Its Paleoenvironmental Implications in the North Branch,Yangtze Estuary |
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| ZHOU Kai-sheng,MENG Yi,LIU Cang-zi,HONG Xue-qing.The Foraminiferal Assemblages and Its Paleoenvironmental Implications in the North Branch,Yangtze Estuary[J].Acta Sedimentologica Sinica,2009,27(2):334-342. | |
| Authors: | ZHOU Kai-sheng MENG Yi LIU Cang-zi HONG Xue-qing |
| Institution: | 1.Department of Foodstuff & Bioengineering;Bengbu College;Bengbu Anhui 233030;2.State Key Laboratory of Estuarine and Coastal Research;East China Normal Uniersity;Shanghai 200062;3.Department of Geography;East China Normal University;Shanghai 200062 |
| Abstract: | On the basis of comparative analysis of foraminiferal assemblages zones for Holes XL1,XL2 and CY,integrating the characteristics of their aggradation and environmental magnetism,we probe into the evolvement of the deposit hydrodynamic condition in the North Branch,the Changjiang River Estuary. At the same time,it reveals the relation of sedimentary facies corresponding to their foraminiferal assemblages zones. That is the tidal current ridge corresponding to the E. naraensis,E. magellanicum and F. decorus a... |
| Keywords: | the north branch of the Yangtze River Estuary foraminifers sedimentary environment |
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