| 泌阳断陷盐湖盆地的沉积体系及演化 |
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| 引用本文： | 孙永传,李纯菊.泌阳断陷盐湖盆地的沉积体系及演化[J].地球科学,1991,16(4):419-428. |
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| 作者姓名： | 孙永传 李纯菊 |
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| 作者单位： | 中国地质大学石油系
(孙永传,李蕙生,邓新华),河南石油勘探局
(李纯菊),河南石油勘探局(曹新焰) |
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| 摘 要： |
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| 关 键 词： | 盆地 沉积体系 泌阳凹陷 核桃园组 |
DEPOSITIONAL SYSTEMS AND EVOLUTION OF THE FAULTED SALINE LAKE BASIN IN BIYANG DEPRESSION |
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| Sun Yongchuan Li Huisheng Deng Xinhua.DEPOSITIONAL SYSTEMS AND EVOLUTION OF THE FAULTED SALINE LAKE BASIN IN BIYANG DEPRESSION[J].Earth Science-Journal of China University of Geosciences,1991,16(4):419-428. |
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| Authors: | Sun Yongchuan Li Huisheng Deng Xinhua |
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| Abstract: | The Lower Tertiary in Biyang depression bears abundant oil and gas as well as trona resources , known to be " small but greatly payable" in China . It is a Meso- Cenozoic , terrestrial faulted saline lake basin , formed by tension and developed on the basement of Qinling fold belt. The Hetaoyuan Formation (Oligocene) was deposited at the most active depositional and infilling stage of the lake basin , and five sedimentary systems can be defined : (1) fen-delta ;(2)normal or fresh-brackish lake ;(3)saline lake;(4)delta ;and (5)alluvial fen and alluvial plain . During the deposition of Hetaoyuan Formation three stages of evolution are divided : (1 )the expanding stage of normal lake ; (2)the evaporative concentration stage of saline lake ;and (3)the shrinking stage of normal lake .The depositional systems and evolution were obviously controlled by the boundary growth feults and the basic structural pattern as well as the paleoclimate . |
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| Keywords: | faulted saline lake basin Hetaoyuan Formation depositional system Biyang depression |
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