| 三峡库区巴东组地层的发育特征及其空间变化规律 |
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| 引用本文： | 李华亮,易顺华,邓清禄.三峡库区巴东组地层的发育特征及其空间变化规律[J].力学学报,2006,14(5):577-581. |
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| 作者姓名： | 李华亮 易顺华 邓清禄 |
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| 作者单位： | 中国地质大学地球科学学院,武汉430074 |
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| 基金项目： | 国土资源部科技项目(2003054053)资助 |
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| 摘 要： | 根据大量的野外实际观察、室内岩石标本的薄片鉴定及化学成分分析结果,作者详细论述了三峡库区巴东组地层(T2b)的发育特征及其空间变化的规律性。巴东组地层在秭归、巴东、巫山、奉节等4个地区的总厚度最小约为830m,最大约为1420m,自东而西地层总厚度具有逐渐增大的趋势。红色与灰色是巴东组地层的两大基本色调,红色系列的岩层(第二、四段),多见为碎屑或砂泥质岩类,而灰色系列的岩层(第一、三、五段),多见为碳酸盐岩类。由其发育特征可知,巴东组为典型的易滑岩组。
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| 关 键 词： | 三峡库区 巴东组 发育特征 纵向变化 横向变化 |
| 收稿时间： | 2005-11-01 |
| 修稿时间： | 2005-12-23 |
DEVELOPMENT CHARACTERISTICS AND THEIR SPATIAL VARIATIONS OF BADONG FORMATION IN THE THREE GORGES RESERVOIR REGION |
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| LI Hualiang,YI Shunhua,DENG Qinglu.DEVELOPMENT CHARACTERISTICS AND THEIR SPATIAL VARIATIONS OF BADONG FORMATION IN THE THREE GORGES RESERVOIR REGION[J].chinese journal of theoretical and applied mechanics,2006,14(5):577-581. |
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| Authors: | LI Hualiang YI Shunhua DENG Qinglu |
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| Institution: | Faculty of Earth Sciences,ChinaUniversity of Geosciences,Wuhan 430074 |
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| Abstract: | According to plenty of field observation and a large quantity of identification and analyzation on specimens,slices and chemical composition,the development characteristics and the spacial variations of the Badong formation in the Three Gorges reservoir region are illustrated detailedly.The thickness of Badong formation is approximately 820m at least and 1420m at most with a tendence of gradual incrassation from east to west.Red terrene and grey terrene are the main compositions of the Badong formation.The former(section 2 and 4) is mostly composed of clastic rock or arenaceous argillaceous rock and the latter(section 1,3 and 5) is mainly composed of carbonate rock.Consequently,the Badong formation is a typical stratum assemblage of easy landslide. |
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| Keywords: | Three Gorges reservoir region Badong formation Characteristics Longitudinal variation Transverse variation |
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