| 近代黄河三角洲的沉积特征* |
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| 引用本文： | 李栓科. 近代黄河三角洲的沉积特征*[J]. 地理研究, 1989, 8(4): 45-55. DOI: 10.11821/yj1989040006 |
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| 作者姓名： | 李栓科 |
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| 作者单位： | 中国科学院国家计划委员会地理研究所 |
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| 基金项目： | * 中国科学院地球研究所所长基金资助项目 |
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| 摘 要： | 本文论述了近代黄河三角洲沉积物的数量特征、粒度特征及共分布、结构与构造特征,认为:1.各期亚三角洲的淤积厚度、速率和陆地淤积率都与亚三角洲的建造历时及废止方式有关,淤积厚度有共最大限度;2.沉积颗粒均细于0.25mm级,粉砂粘土占优势,无推移质段。Mz(φ)值与δf成正比,与Kg成反比;3.沉积构造与沉积水动力及颗粒大小有关,沉积物的分布与结构反映了三角洲建造的基本特征。
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| 关 键 词： | 沉积物特征 黄河三角洲 |
| 收稿时间： | 1989-01-06 |
| 修稿时间： | 1989-07-18 |
SEDIMENTARY CHARACTERISTICS IN THE MODERN YELLOW RIVER DELTA |
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| Li Shuanke. SEDIMENTARY CHARACTERISTICS IN THE MODERN YELLOW RIVER DELTA[J]. Geographical Research, 1989, 8(4): 45-55. DOI: 10.11821/yj1989040006 |
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| Authors: | Li Shuanke |
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| Affiliation: | Instiutute f Geography, Chiness Academy of Sciences and State Planning Commission of the People''s Republic of China |
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| Abstract: | This article studies the quantity, grain size, and distribution characteristics of the deltaic sedimentary, also sedimentary structure and construction of the delta. The following conclusions are obtained.( 1 ) In every sub-deltaic construction, the thickness, velocity and land sedimentary ration are in relation to their living time and abandoned pattern. There is a maximum in every sub-deltaic sedimentary.( 2 ) The coarsest grained-grad is 0.25mm, and principal composition is salt sand and clay.There is nonrolling components of sedimentary.( 3 ) The sedimentary structures are in relation to the hydrodynamics and grain size of sediments. The distribution and construction of the deltaic sedimentary is a reflection of the characters of the deltaic development. |
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| Keywords: | Sedimentary charcteristics Yellow River Delta |
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