| 洞庭盆地第四纪沉积环境演变的初步分析 |
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| 引用本文： | 皮建高,张国梁,梁杏,张人权.洞庭盆地第四纪沉积环境演变的初步分析[J].地质科技情报,2001,20(2):6-10. |
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| 作者姓名： | 皮建高 张国梁 梁杏 张人权 |
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| 作者单位： | 1. 湖南省地勘局水文地质工程地质二队,
2. 中国地质大学工程学院, |
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| 基金项目： | 国土资源部科技资助项目 ( 992 0 0 8)，国土资源部地质调查项目 ( 199912 3 0 0 0 3 0 14专题 2 ) |
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| 摘 要： | 利用水流能量指数，分析了洞庭盆地第四纪沉积环境的演变特征。得出洞庭盆地主要为河流－过流型湖泊相互消长的沉积环境。沉积环境的演变及主要水流方向，受差异性构造沉降的控制。历史时期，人为作用对盆地沉积环境影响很大，并且是近代洞庭湖区洪灾加剧的主要原因。
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| 关 键 词： | 洞庭盆地 第四纪 沉积环境 分析 水流能量指数 差异性构造沉降 人为作用 |
| 文章编号： | 1000-7849(2001)02-0006-05 |
PRELIMINARY RESEARCH ON SEDIMENTARY ENVIRONMENT EVOLUTION IN DONGTING BASIN IN THE QUATERNARY PERIOD |
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| Pi Jiangao,Zhang Guoliang,Liang Xing,Zhang Renquan.PRELIMINARY RESEARCH ON SEDIMENTARY ENVIRONMENT EVOLUTION IN DONGTING BASIN IN THE QUATERNARY PERIOD[J].Geological Science and Technology Information,2001,20(2):6-10. |
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| Authors: | Pi Jiangao Zhang Guoliang Liang Xing Zhang Renquan |
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| Institution: | Pi Jiangao 1 Zhang Guoliang 1 Liang Xing 2 Zhang Renquan 2 |
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| Abstract: | The evolution of sedimentary environment in the Quaternary in Dongting Basin is analyzed by using the flow energy index.It is concluded that the sedimentary environment is mostly of alternating river with river like flowing lake.While its evolution and flow direction are controlled by differential tectonic subsidence.Artificial factors play a significant role in evolution of sedimentary environment during the historical period.The intensification of flood disaster in Dongting Lake in modern times may have resulted from the unreasonable intervention of human activities. |
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| Keywords: | Dongting Basin Quaternary Period analysis of sedimentary environment flow energy index differential tectonic subsidence |
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