| 东濮凹陷东南部早第三纪古地理背景初探 |
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| 引用本文： | 朱筱敏,胡庆喜,信荃麟,倪丙荣.东濮凹陷东南部早第三纪古地理背景初探[J].中国石油大学学报(自然科学版),1992(4). |
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| 作者姓名： | 朱筱敏 胡庆喜 信荃麟 倪丙荣 |
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| 作者单位： | 石油大学地球科学系
(朱筱敏，胡庆喜，信荃麟)，石油大学地球科学系(倪丙荣) |
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| 摘 要： | 利用介形虫化石群的分异度确定了湖盆的古水深;利用孢粉的古生态环境推断了早第三纪古气候;利用孢粉和介形虫化石组合及有关地化指标研究了湖盆的古盐度.研究结果表明,研究区早第三纪湖盆前期水体深、盐度大、气候温湿;湖盆后期水体浅、盐度低、气候干旱炎热,从而为准确研究东濮凹陷东南部早第三纪湖盆的岩相古地理和石油地质综合概况提供了可靠的地质基础.
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| 关 键 词： | 凹陷 古水深 古气候 古地理环境 (濮阳油田) |
PALEOGEOGRAPHIC SETTINGS OF PALEOGENE IN SOUTHEASTERN DONGPU DEPRESSION |
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| Zhu Xiaomin Hu Qingxi Xin Quanlin Ni Bingrong.PALEOGEOGRAPHIC SETTINGS OF PALEOGENE IN SOUTHEASTERN DONGPU DEPRESSION[J].Journal of China University of Petroleum,1992(4). |
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| Authors: | Zhu Xiaomin Hu Qingxi Xin Quanlin Ni Bingrong |
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| Abstract: | In this paper, the paleobathymetry of the Dongpu depression was determined by the use of the differentiation of fossil assemblage and the paleoclimate of paleogene was deduced from the paleoeclimate of paleogene was deduced from the paleoecology of spores and pollen. The lacustrine paleosalinity was studied according to the assemblages of spores, pollen and ostracoda, and the geochemical features of paleogene sediments. The results showed that during the early stage of the paleogene, the area had the characteristics of deep water, high salinity and humid climate. In the later stage, paleogene shallow water, low salinity and arid climate predominated. The geological settings provided the basic information for studying paleogeography and. the petroleum geology of the paleogene in southeastern Dongpu depression. |
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| Keywords: | Depression: Paleobathy metry Paleo salinity: Paleoclimate Paleogeography: Puyang oilfield |
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