| 松辽盆地白垩系青山口组黑色页岩的形成环境及海水侵入的底流模式 |
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| 引用本文： | 王璞珺,王东坡,杜小弟.松辽盆地白垩系青山口组黑色页岩的形成环境及海水侵入的底流模式[J].沉积与特提斯地质,1996,16(1):34-43. |
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| 作者姓名： | 王璞珺 王东坡 杜小弟 |
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| 作者单位： | 长春地质学院能源系，南京大学地球科学系 |
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| 摘 要： | 通过对中央坳陷区两口钻井剖面和东南隆起区野外露头剖面的沉积学、矿物学和地球化学研究，认为松辽盆地白垩系青山口组黑色页岩形成于稳定分层的湖相环境；周期性海水注入形成的底流是导致水体分层和黑色页岩沉积的重要因素。
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| 关 键 词： | 松辽盆地，白垩系，黑色页岩，近海内陆盆地，周期性海水注入 |
| 收稿时间： | 1995/2/25 0:00:00 |
THE ORIGIN OF THE BLACK SHALES AND THE BOTTOM CURRENT MODEL FOR SEAWATER ENCROACHMENT IN THE CRETACEOUS QINGSHANKOU FORMATION,SONGLIAO BASIN,NORTHEAST CHINA |
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| Wang Pujun,Wang Dongpo,Du Xiaodi.THE ORIGIN OF THE BLACK SHALES AND THE BOTTOM CURRENT MODEL FOR SEAWATER ENCROACHMENT IN THE CRETACEOUS QINGSHANKOU FORMATION,SONGLIAO BASIN,NORTHEAST CHINA[J].Sedimentary Geology and Tethyan Geology,1996,16(1):34-43. |
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| Authors: | Wang Pujun Wang Dongpo Du Xiaodi |
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| Institution: | Geoenergy Department, Changchun University of Earth Sciences |
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| Abstract: | The study of sedimentary sequences, mineralogy and geochemistry of the black shales in the Cretaceous Qingshankou Formation has revealed that the Songliao nearshore continental basin was affected by periodic transgression/regression of the adjacent marine water from the Pacific Ocean during the deposition of the Qingshankou Formation (88. 5-100 Ma).On the basis of the palaeoenvironmental analysis of the black shales, the authorsconclude that the bottom current resulted from periodic transgressions may be the mainfactor which gives rise to the stratification of lake water and the deposition of the blackshales in the study area, and a simplified model showing the marine incursions ill this areais also proposed. |
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| Keywords: | Songliao Basin Cretaceous black shale nearshore continental basin periodic marine incursion |
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