Frame - building organisms mostly are sphinctozoa , inozoa , hydrozoa , tabulozoa . binding organisms mainly are bluegreen algae , tubiphytes and tabulozoa . accessory organisms are bryozoa , brachiopoda , foraminifera , echinodermata , etc . what ' s more , biota are different with various reef facies 在各相带内，生物组合也迥然不同，礁相以底栖生物为主，盆地相以海绵骨针、钙球、放射虫为特征，而礁后相则以裸海松藻、有孔虫、蜓类、棘皮类为特征。
The top sediment above 1 . 8m depth was referred to be the deposit under the cold water mass since 9 . 7kabp . in the middle southern yellow sea . q - mode factor analysis was employed on 98 samples and 33 benthic foraminiferous species with relative abundance of more than 2 % in at least 3 samples and 5 varimax factors had been recognized as follows : factor 1 ( ammonia beccarii vars 南黄海中部泥质区的ey02 - 2孔共揭示了氧同位素6期以来的海侵海退序列，该孔浮游有孔虫匮乏，说明黄海暖流对钻孔所处南黄海中部冷涡泥质沉积区影响一直很弱，底栖有孔虫中玻璃质壳占绝对优势，比例为93 . 87 100 。
Based on the elaborate research on the stable oxygen isotope stratigraphy , carbonate stratigraphy , biostratigraphy , magnetic susceptibility , grain size and clay mineral of cores marked md81349 , md77190 , md77181 and bar9427 in the northeastern indian ocean , this thesis focus on the application of the tl properties in the above cores to infer the paleoclimatic change , and discuss the response of tl of sedimentary records with climatic cycles during the last 300 , 000 years 论文对东北印度洋地区不同地理位置的md81349 、 md77190 、 md77181 、 bar9427四支岩芯的全岩热释光和md81349岩芯纯净有孔虫的热释光测量，与已知氧同位素地层资料对比后发现四支岩芯的热释光变化与氧同位素地层揭示的气候变化及可能的隆升事件有良好的对应关系。
The results improve our understanding of the utility of tl as an indicator of sedimentary environment and provide insight into what types of ocean sediments are amenable for study . the comparison of the 18o with the tl cycles indicates that the tl dose display the expected coupling relation with interglacial and glacial climate cycles 尤以位于东经90海岭上的以远洋沉积作用为主的md81349岩芯最为理想，陆源剥蚀产物在其沉积记录中所占比例较少，有孔虫和超微化石为代表的远洋成因的灰白色生物软泥构成主要的沉积组分。
Assemblage ) represented the coastal shallow - water environment ; factor 2 ( protelphidium tuberculatum assemblage ) represented the alongshore cold - water current area or cold shallow sea environment ; factor 3 ( elphidium magellanicum assemblage ) represented the sh allow sea ( < 20 - 30m depth ) deposit ; factor 4 ( ammonia ketienziensis assemblage ) represented the shallow - sea water more than 50m depth ; and factor 5 ( buccella frigida assemblage ) represented the colder - water sea environment ; and the distribution of factor load accorded with the character of benthic foraminifer community Q型因子分析揭示ey02 - 2孔5种有孔虫组合，分别对应滨岸盐沼环境、黄海沿岸流冷水分布区、高潮坪浅海沉积环境、水深大于50m的现代浅海环境及较冷的沉积环境。因子载荷的分布与有孔虫群落特征吻合较好。南黄海有孔虫含量? ?水深转换函数关系式有一定的局限性，并不能在南黄海陆架地区推广使用。
