| 北部湾中部海域底质沉积物中的有孔虫 |
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| 引用本文： | 李保华,孔晓敏,王晓燕,龙江平. 北部湾中部海域底质沉积物中的有孔虫[J]. 微体古生物学报, 2010, 0(2) |
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| 作者姓名： | 李保华 孔晓敏 王晓燕 龙江平 |
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| 作者单位： | 中国科学院南京地质古生物研究所;中国科学院研究生院;国家海洋局第二海洋研究所; |
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| 基金项目： | 中国科学院知识创新工程重要方向项目(kzcx2-yw-155-2); 国家自然科学基金(40876020); 中国近海海洋综合调查与评价(908)项目联合资助 |
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| 摘 要： | 本文对北部湾中部海域水深2.4m到61m、共计184个站位表层沉积物中的有孔虫进行研究。结果显示浮游有孔虫丰度非常低,种类也较稀少,仅在南侧水深较大的少数站位有发现,且含量不超过5%;而底栖有孔虫则较丰富,多数样品中以含有螺旋式与平旋式的玻璃质壳类型为主,暖水或大型底栖有孔虫分子常见。和其它海区相较而言,该海域底栖有孔虫中胶结壳类含量偏高,可能与沉积物底质颗粒较粗及海水盐度较低有关。该研究详细报道了底栖有孔虫主要属种在北部湾的分布特征。与海洋环境对比显示,水深和沉积物底质类型是影响这些属种平面分布的主要因素,而湾外温暖水团则是控制暖水种分子分布的另一重要因素。
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| 关 键 词： | 有孔虫 表层沉积物 环境 北部湾 南海 |
FORAMINIFERA IN SURFACE SEDIMENTS OF THE TONKIN GULF,NORTHERN SOUTH CHINA SEA |
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| LI Bao-hua ),KONG Xiao-min ,),WANG Xiao-yan ), LONG Jiang-ping ))Nanjing Institute of Geology , Palaeontology,Chinese Academy of Sciences,Nanjing )Graduate School,Beijing )Second Institute of Oceanography,State Oceanic Administration,Hangzhou. FORAMINIFERA IN SURFACE SEDIMENTS OF THE TONKIN GULF,NORTHERN SOUTH CHINA SEA[J]. Acta Micropalaeontologica Sinica, 2010, 0(2) |
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| Authors: | LI Bao-hua ) KONG Xiao-min ) WANG Xiao-yan ) LONG Jiang-ping ))Nanjing Institute of Geology Palaeontology Chinese Academy of Sciences Nanjing )Graduate School Beijing )Second Institute of Oceanography State Oceanic Administration Hangzhou |
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| Affiliation: | LI Bao-hua 1),KONG Xiao-min 1,2),WANG Xiao-yan 1)and LONG Jiang-ping 3)1)Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences,Nanjing 2100082)Graduate School,Beijing 1000493)Second Institute of Oceanography,State Oceanic Administration,Hangzhou 310012 |
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| Abstract: | This study reports the distribution of foraminifera from 184 samples of sea surface sediments in the Tonkin Gulf,northern South China Sea.Planktonic foraminifera are seldom found and only occur in the southern part,near the outlet of the gulf.Benthic foraminifera have a high abundance in all samples and are mainly the planospiral and trochospiral hyaline tests.The arenaceous tests have a relatively higher content in the the Tonkin Gulf,possibly resulted from the coarser sediments and less saline water.The w... |
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| Keywords: | foraminifera sea surface sediment environment the Gulf of Tonkin(Bay of Beibuwan) South China Sea |
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