| 渤海莱州湾表层沉积物中底栖有孔虫分布特征及其环境意义 |
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| 引用本文： | 李小艳,石学法,程振波,乔淑卿,吴永华,石丰登.渤海莱州湾表层沉积物中底栖有孔虫分布特征及其环境意义[J].微体古生物学报,2010(1). |
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| 作者姓名： | 李小艳 石学法 程振波 乔淑卿 吴永华 石丰登 |
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| 作者单位： | 同济大学海洋地质国家重点实验室;海洋沉积与环境地质国家海洋局重点实验室;国家海洋局第一海洋研究所; |
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| 基金项目： | 我国近海调查专项海洋底质调查课题(908-01-CJ06); 国家自然科学基金项目(40806026,40806025); 海洋局一所基本科研业务费专项资金项目(GY02-2008T28,GY02-2008G39)资助 |
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| 摘 要： | 对渤海莱州湾海域240个站位表层沉积物中底栖有孔虫群落进行了分析,共鉴定常见的底栖有孔虫42种。结果表明,莱州湾表层沉积物中底栖有孔虫主要以玻璃质壳为主(平均丰度达70.9%),瓷质壳含量次之,胶结壳含量最低;玻璃质壳占有孔虫全群的百分含量,随水深的增加而增加;从黄河口向外海方向,有孔虫分异度和丰度都逐渐增大。该海域底栖有孔虫平面分布的主要控制因素为盐度和底质沉积物类型,大体可分为两个组合分区,I区为Ammonia beccarii-Quinqueloculina spp.组合,代表盐度较低的近岸海陆过渡浅水环境;II区为Cribrononionsub-incertum-Protelphidium tuberculatum组合,代表盐度较高的远岸内陆架环境。
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| 关 键 词： | 底栖有孔虫 表层沉积物 海洋环境 莱州湾 渤海 |
DISTRIBUTION OF BENTHIC FORAMINIFERA IN SURFACE SEDIMENTS OF THE LAIZHOU BAY,BOHAI SEA AND ITS ENVIRONMENTAL SIGNIFICANCE |
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| LI Xiao-yan ,,SHI Xue-fa ,CHENG Zhen-bo ,QIAO Shu-qing ,WU Yong-hua , SHI Feng-deng , Tongji University,Laboratory of Marine Geology,Shanghai Laboratory of Marine Sedimentology , Enviromental Geology,SOA,Qingdao First Institute of Oceanography,Qingdao.DISTRIBUTION OF BENTHIC FORAMINIFERA IN SURFACE SEDIMENTS OF THE LAIZHOU BAY,BOHAI SEA AND ITS ENVIRONMENTAL SIGNIFICANCE[J].Acta Micropalaeontologica Sinica,2010(1). |
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| Authors: | LI Xiao-yan SHI Xue-fa CHENG Zhen-bo QIAO Shu-qing WU Yong-hua SHI Feng-deng Tongji University Laboratory of Marine Geology Shanghai Laboratory of Marine Sedimentology Enviromental Geology SOA Qingdao First Institute of Oceanography Qingdao |
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| Institution: | LI Xiao-yan 1,2,3),SHI Xue-fa 2,CHENG Zhen-bo 2,QIAO Shu-qing 2,WU Yong-hua 2,3) , SHI Feng-deng 2,3) 1) Tongji University,Laboratory of Marine Geology,Shanghai 2000922) Laboratory of Marine Sedimentology , Enviromental Geology,SOA,Qingdao 2660613) First Institute of Oceanography,Qingdao 266061 |
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| Abstract: | A total of 240 samples from surface sediments of the Laizhou Bay,Bohai Sea were quantitatively analyzed for benthic foraminifera. There are 42 common benthic foraminifera species found in these samples. The benthic foraminiferal fauna is dominated by hyaline group with an average abundance of 70.9%. The porcellaneous group is the second and arenaceous group is the least. Both abundance and diversity of benthic foraminifera show an increasing trend from the Yellow River mouth to the open sea. Water salinity ... |
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| Keywords: | benthic foraminifera surface sediments marine environment Laizhou Bay Bohai Sea |
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