| 硅藻实验提取方法－－最佳静置沉降时间的探讨 |
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| 引用本文： | 李晶晶,李杰,旺罗.硅藻实验提取方法－－最佳静置沉降时间的探讨[J].第四纪研究,2009,29(1):183-184. |
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| 作者姓名： | 李晶晶 李杰 旺罗 |
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| 作者单位： | 1. 中国地质大学地球科学与资源学院,北京,100083
2. 中国科学院地质与地球物理研究所,北京,100029 |
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| 摘 要： | Diatom assemblages reflect well the changes of palaeoenvironment， and the key is to get a complete assemblage. The generally used centrifugation method however sometimes causes damage to diatoms， particularly fragile ones， causing large error in diatom statistic analysis. An alternative method is settling， but the duration of settling for diatom suspension has not yet been reported by far. Here we designed an experiment to find the best duration for all diatoms to settle down. The result shows that if there are less than 5μm diatoms in the samples at least 22 hours are needed for all diatoms to settle down.
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| 关 键 词： | diatom sample preparation settling duration |
THE BEST DURATION OF SETTLING FOR DIATOM SUSPENSION |
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| Li Jingjing,Li Jie,Wang Luo.THE BEST DURATION OF SETTLING FOR DIATOM SUSPENSION[J].Quaternary Sciences,2009,29(1):183-184. |
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| Authors: | Li Jingjing Li Jie Wang Luo |
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| Institution: | School of the Earth and Resources|China University of Geosciences|Beijng100083； Institute of Geology and Geophysics|Chinese Academy of Sciences|Beijing100029 |
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