| 中国东部早第三纪有孔虫的生活环境 |
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| 引用本文： | 李守军,吴智平,马在平. 中国东部早第三纪有孔虫的生活环境[J]. 中国石油大学学报(自然科学版), 1997, 0(2) |
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| 作者姓名： | 李守军 吴智平 马在平 |
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| 作者单位： | 石油大学石油资源科学系 |
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| 摘 要： | 中国东部下第三系各盆地间有孔虫化石的分布具有纵向上的不等时性，盆地内具有横向上的不连续性，并且有孔虫的分异度和丰度较小，壳体微小、形态强烈变异，与广盐性陆相生物共生．对盐度地化指标的分析表明，有孔虫化石仅出现于高盐度沉积时期，而不出现于最大水进期．这些特征都说明中国东部早第三纪有孔虫的生活环境为陆相咸水湖泊．
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| 关 键 词： | 有孔虫；生活环境；陆相；咸水湖；早第三纪；中国东部 |
ENVIRONMENT OF FORAMINIFERA OF PALEOGENE IN EAST CHINA |
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| Li Shoujun. ENVIRONMENT OF FORAMINIFERA OF PALEOGENE IN EAST CHINA[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1997, 0(2) |
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| Authors: | Li Shoujun |
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| Affiliation: | Post code: 257062 |
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| Abstract: | Foraminifera of the Paleogene System are found in East China. The environment in which foraminifera lived was studied. The appearence of foraminifera in vertical direction (age) is different among the basins. The distribution of foraminifera in traverse direction (geography) is not continuous in the basins. The diversity and richness of foraminifera are low. The tests of foraminifera are small and strongly variational. Foraminifera are coexistence with euryhaline continental organisms. Foraminifera appear only in the sedimentary period of high paleosalinity, not in that of the highest water level. These characteristics show that foraminifera of paleogene in East China lived in continental saltwater lake. |
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| Keywords: | Foraminifera Environment of life Continental facies Saltwater lake Paleogene East China . |
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