出现有“海相”沟鞭藻、有孔虫和钙质超微化石是由于当时湖泊咸化及富养料造成的。
The presence of the "Marine" Dinophyceae, foraminifera and calcareous ultramicrofossils are attributed to the salinized lakes and abundant nutrients.
通过对南海表层沉积中钙质超微化石丰度和属种组合的分析，得出化石丰度与水深的关系。
Based on the analyses of abundance and assemblages of calcareous nannoplankton of the surface sediments from the South China Sea, the correlation between the abundance and water depth is found.
通过对南海表层沉积中钙质超微化石丰度和属种组合的分析，得出化石丰度与水深的关系。
Based on the analyses of abundance and assemblages of calcareous nannoplankton of the surface sediments from the South China Sea, the correlation between the abundance and water depth is found.
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