| 岩相古地理方法在古洪水研究中的应用 |
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| 引用本文： | 严宝文,鲁继恒,曹枝俏.岩相古地理方法在古洪水研究中的应用[J].水文,2011,31(1):26-30. |
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| 作者姓名： | 严宝文 鲁继恒 曹枝俏 |
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| 作者单位： | 1. 西北农林科技大学水利与建筑工程学院,陕西,杨凌,712100;旱区农业水土工程教育部重点实验室,陕西,杨凌,712100
2. 西北农林科技大学水利与建筑工程学院,陕西,杨凌,712100 |
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| 基金项目： | 西北农林科技大留学回国人员科研启动费项目(Z1110209056);西北农林科技大基础科研费项目(QN2009090) |
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| 摘 要： | 用古洪水外延洪水频率曲线是水文学中常见的问题,古洪水沉积研究法是最常用的方法,但该方法面临洪积物识别的问题。从岩相古地理学的研究思路出发,通过选取典型区进行古沟谷洪水沉积采样,用筛分法进行颗粒分析,并对其粒度级配特征值进行统计计算,同时参照岩相古地理沉积物粒度参数计算公式和分析原理,分析了古沟谷洪水的颗粒构成特性,证实了沉积物属于古洪水沉积。为古洪水研究提供一条新的思路与方法。
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| 关 键 词： | 古洪水 岩相古地理 粒度分析 |
Application of Paleogeographic and Lithofacies Method in Paleoflood Research |
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| YAN Baowen,LU Jiheng,CAO Zhiqiao.Application of Paleogeographic and Lithofacies Method in Paleoflood Research[J].Hydrology,2011,31(1):26-30. |
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| Authors: | YAN Baowen LU Jiheng CAO Zhiqiao |
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| Institution: | YAN Baowen1,2,LU Jiheng1,CAO Zhiqiao1(1.College of Water Resources and Architectural Engineering,Northwest A&F University,Yangling 712100,China,2.Key Lab of.Arid Agricultural Soil-water Engineering,Ministry of Education,China) |
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| Abstract: | Extension of frequency curve with paleoflood data is a common way in hydrology,of which flood deposition study is the most commonly used method,but it is faced with the difficulty of identification of pluvial deposition.Based on paleogeographic and lithofacies research,by sampling from ancient valley flood sedimentation in typical areas,the particle size was analyzed with sieving method,and statistical computation was made for the characteristics of the particle size distribution.At the same time,the charac... |
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| Keywords: | paleoflood paleogeography and lithoface grain-size analysis |
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