nannofossil meaning in English
超微化石
微化石, 微型浮游植物化石
Examples
- These units mainly consist of clay and nannofossil clay
以微型浮游生物化石粘土为主。 - The study of foraminifera , ostrocoda , radiolaria and calcareous nannofossil plays an important ， indispensable and useful role in the marine geology research
其中有孔虫、介形虫、放射虫、超微化石等海洋微体生物壳体是海洋地质研究不可缺少和替代的重要部分。 - This study is a post - cruise study of this leg , calcareous nannofossil samples from sites 1146 , 1147 and 1148 of leg 184 were analyzed to provide a high - resolution biostratigraphy for this leg and to investigate morphological variation of coccolith genus gephyrocapsa . the main results of this study are : 1 . 12 late pliocene to pleistocene bio - events were recognized and 6 zones of martini ( 1971 ) were determined for the upper sediment sequences of sites 1146 and 1148
本文作为大洋钻探项目船下后续研究的一部分，对184航次中的1146站位和1147 、 1148站位的样品进行了分析和研究，在船上科学家已经建立起的地层框架的基础上进一步加密采样，对生物事件标志化石类别进行数量统计，进一步确定了12个生物事件在钻孔中的深度，建立起了两个站位的高分辨率的钙质超微化石生物地层框架。 - The study of neogene calcareous nannofossils from the pearl river mouth basin in the last two decades could be subdivided into two stages ( 1 ) from the beginning period of the 80 ' s to early of the last century , the studies focused on the calcareous nannofossil zones and the descriptions of main genera and species ; ( 2 ) from the middle and late period of the 90 ' s of the last century to the present , the researches concentrated on the high - resolution calcareous nannnofossil biostratigraphy
纵观二十多年来珠江口盆地新近系钙质超微化石的研究历史，大致可分成两个阶段： ( 1 )上世纪80年代初至90年代初，侧重于化石带的报道及主要化石属种的描述； ( 2 )上世纪90年代中后期至今，主要为高分辨率钙质超微生物地层研究阶段。