颗石藻类

The productivity of Eustigmatophytes and coccolithophorid calculated by the concentrations of 〓 diol and long-chain ketones, respectively, indicate that the paleoceanographic environment and paleoclimate were unstable in Nansha area during the last glacial. The productivity of the two algae fluctuated greatly and was higher during the glacial than that in Holocene.

由〓烷基二醇和长链不饱和酮含量分别计算出的黄绿藻、颗石藻古生产力揭示出南沙海区末次冰期的古海洋环境及古气候是不稳定的，两类浮游藻类的生产力在冰期都出现了较大的波动：黄绿藻、颗石藻的生产力在末次冰期都比全新世高，特别是在H3时都出现了生产力增大的事件。

From the pyrolyzed product at 200℃ of Gephyrocapsa oceanica a group of C〓 dicycle terpenoids were firstly identified. They were highly instable and sensitive to temperature because they can only generate at 200℃ and segregate or transform at higher temperature. Therefore they can not only be an indicator of special temperature of organic matter originated from G. oceanica, but can be used to distinguish organic matter from G. oceanica before the hydrocarbon generation peak.

在近海颗石藻Gephyrocapsa oceanica 200℃产出的饱和烃中首次检出了一组C〓二环萜类化合物，这一组特殊的C〓二环萜类化合物在颗石藻来源的有机质中是高度不稳定和温度敏感的，因为它们只在200℃时才形成，更高的温度条件下便解离或转化了，因此，它们既可以是近海颗石藻Gephyrocapsa oceanica来源有机质的特定温度条件的指示，又可以被用于判识该藻类在成烃高峰到来前所形成的有机质。

In this paper, the biological and organic geochemical methods were applied together to study the characteristics of thermal simulant products of calcifiied and noncalcified coccolithophore, fresh and dead Pediastrum boryanum, autotrophic and heterotrophic Chlorella protothecoides, as well as Synechocystis.

本论文综合利用了生物学与有机地球化学的分析实验手段，研究了钙化/非钙化颗石藻、新鲜/死亡盘星藻、自养/异养黄化小球藻和聚胞藻热模拟产物的地球化学特征，对比解剖了胜利油田孤南洼陷富含藻类化石的烃源岩的地球化学特征，探讨了藻类生源与烃源岩间不同生物标志物表现及对应关系，研究发现

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。