| 泌阳凹陷东南缘下第三系杂砾岩的沉积学特征 |
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| 引用本文： | 杨玉卿,周留记.泌阳凹陷东南缘下第三系杂砾岩的沉积学特征[J].现代地质,1995,9(3):311-319,T001. |
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| 作者姓名： | 杨玉卿 周留记 |
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| 作者单位： | 河南石油勘探局 |
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| 摘 要： | 本文首次对区内杂砾岩（又称红层）的沉积学特征进行研究。据成因之不同，把杂砾岩区分为６类：泥石流、颗粒流、泥流、冲刷砾石层、河道及片流沉积。讨论了各类沉积之特点，尤其是砾石的粒度分布特征。结果表明，不同成因的杂砾岩砾石的粒度分布曲线形态，尤其是量化粒度参数存在明显差异。
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| 关 键 词： | 泌阳凹陷，杂砾岩，成因类型，粒度分布曲线，粒度参数 |
SEDIMENTOLOGY OF DIAMICTITES OF LOWER TERTIARY IN SOUTHEASTERN BIYANG DEPRESSION,HENAN PROVINCE |
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| Yang Yuqing, Zhou Liuji.SEDIMENTOLOGY OF DIAMICTITES OF LOWER TERTIARY IN SOUTHEASTERN BIYANG DEPRESSION,HENAN PROVINCE[J].Geoscience——Journal of Graduate School,China University of Geosciences,1995,9(3):311-319,T001. |
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| Authors: | Yang Yuqing Zhou Liuji |
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| Abstract: | he sedimentary characteristics of diamictites(so-called red beds) in the study area are fully studied for the first time.According to different origin, six genetic types of diamictites may be distinguished:debris flow deposits, grain flow deposits, mud-flow deposits, washed gravel layers,channel and sheetflood flow deposits. The sedimentary characteristics of all sorts of diamictites, especially grain-size distribution characteristics of clasts are mainly disscussed. The result indicates that the shapes of grain-size distribution curves of clasts in different genetic diamictites and quantitative grain-size parameter Mdf/Rgs are entirelly different from one to another. |
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| Keywords: | Biyang depression diamictite genetic type grain-size distribution curve grain - size parameter |
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