| 黄骅拗陷南部沉积盆地数学模拟的初步研究 |
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| 引用本文： | 孙惠文,刘素华.黄骅拗陷南部沉积盆地数学模拟的初步研究[J].地质科学,1981,0(2):144-152. |
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| 作者姓名： | 孙惠文 刘素华 |
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| 作者单位： | 中国科学院地质研究所 |
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| 摘 要： | 六十年代初国外有人开始用确定型的数学模拟方法来模拟沉积盆地的形成和演化。L.L.Sloss(1962)提出了一种沉积盆地的概念模型,J.W.Harbaugh等(1970)详细地讨论了这种模型,并编制了计算机程序。这种模型适用于由流经海岸平原的河流携带到海边的大陆架上的碎屑沉积物的沉积作用。本文利用这种沉积模式,对我国黄骅拗陷南部一个约1000平方公里的膏盐湖沉积盆地进行了数学模拟,并取得了一些初步成果。
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| 关 键 词： | , |
| 收稿时间： | 1979-10-28 |
| 修稿时间： | 1979-10-28; |
PRELIMINARY MATHEMATICAL MODEL OF SEDIMENTARY BASIN IN THE SOUTHERN PART OF HUANGHUA DEPRESSION |
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| Sun Huiwen,Liu Suhua.PRELIMINARY MATHEMATICAL MODEL OF SEDIMENTARY BASIN IN THE SOUTHERN PART OF HUANGHUA DEPRESSION[J].Chinese Journal of Geology,1981,0(2):144-152. |
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| Authors: | Sun Huiwen Liu Suhua |
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| Institution: | Institute of Geology, Academia Sinica, Beijing |
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| Abstract: | This paper deals with a quantitative mathematical model of sedimentary basin.This model,in general,is suitable for simulating deposition of clastic sediments.As an example we took a continental gypsum salt lake basin,an alluvial fan extended in the southern part of Huanghua depression.The data obtained from five boreholes are shown in the simulated section.There we applied three kinds of sediments,i.e.sandstone and gritstone,mud-stone,and argillaceous gypsum rock.Our model took the subsidence of earth’s crust into consideration,and the results show that the lithological changes there had a periodical character.Consequently,five regions can be classified according to their petrographical facies,.that are,region of sandstone and gritstone,alternating region of sandstone and gritstone with mud stone,region of mud stone,alternating region of mud stone with argillaceous gypsum rock and region of argillaceous gypsum rock.Moreover,our model gives a quantitative illustration of the lithological and petrographical changes,such as the periodic change of amount of water at a different interval,the gradual change of flow speed in various parts,the grain size of sediments and so on.Prom this model can be seen an asynchronism of sedimentation with the subsidence of earth’s crust.Generally speaking,this sedimentary basin model in its present form can be used for making a wide variety of simple modelling test on sedimentation. |
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| Keywords: | , |
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