| 分类号：P512.2 文献标识码：A |
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| 引用本文： | ZHONG Jian-hua,ZHONG Jian-hua,WU Kong-you,NI Jin-ren.分类号：P512.2 文献标识码：A[J].沉积学报,2000,18(4):527-533. |
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| 作者姓名： | " target="_blank">ZHONG Jian-hua ZHONG Jian-hua" target="_blank">ZHONG Jian-hua WU Kong-you" target="_blank">WU Kong-you NI Jin-ren" target="_blank">NI Jin-ren |
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| 作者单位： | ZHONG Jian-hua（changsha Institute of
Geotectonics,CAS,Clangsha 410013）
ZHONG Jian-hua（Department of Resources and Environment, University of
Petroleum, Dongying, Shandong 257062）
WU Kong-you（Department of Resources and Environment, University of
Petroleum, Dongying, Shandong 257062）
NI Jin-ren（Center for Environmental Sciences,Peking
University,Beijing 100682） |
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| 基金项目： | This work wass upported by the Major State Basic Research Programunder the grant No.G1999043603;National Natural Science Foundation of Chi |
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| 摘 要： | In recent years, the flow of the Yellow River has often beeninterrupted, which has resulted in exposure of channel bars and point bars, and even extensive exposure of the riverbed. Consequently, a large number of rill marks have developed. They are diverse in morphology. According to the hydrodynamic types of their formation, they can be grouped into 6 categories, i. e. the wave-eroded, backwash, seepage, rain-eroded, water-drainage and runoff rill marks. Morphologically, they can be divided into more than ten types: the linear, tooth-shaped, comb-shaped, fence-like, ear-like, braided, branched, leaf-like, flower-like, root-like, dendritic, net-like, radial etc. Their cross sections include the broad-u type (the width/depth ratio is over 2, and may reach 10－20), U-type (width/depth ratio from 1 to 2), V-type, Ω-type and (-type. Their occurrences may be attributed to the variations in composition, grain-size, color, fabric and morphology. They have 5 scales: the micro-scale (length and width within 1 cm), small-scale (length and width within 10 cm), medium-scale (length and width ranging from 10－100cm), large-scale (length and width 1－5 m) and giant- scale (length or width over 5 m).
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| 关 键 词： | rill marks Yellow River de |
| 文章编号： | 1000-0550(2000)01-0527-07 |
| 收稿时间： | 1999-07-22 |
| 修稿时间： | 1999年7月22日 |
A Preliminary Study of RillMarks in the Yellow River Delta |
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| Hhong.JH Wu,KY.A Preliminary Study of RillMarks in the Yellow River Delta[J].Acta Sedimentologica Sinica,2000,18(4):527-533. |
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| Authors: | HhongJH Wu KY |
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| Abstract: | In recent years, the flow of the Yellow River has often beeninterrupted, which has resulted in exposure of channel bars and point bars, and even extensive exposure of the riverbed. Consequently, a large number of rill marks have developed. They are diverse in morphology. According to the hydrodynamic types of their formation, they can be grouped into 6 categories, i. e. the wave-eroded, backwash, seepage, rain-eroded, water-drainage and runoff rill marks. Morphologically, they can be divided into more than ten types: the linear, tooth-shaped, comb-shaped, fence-like, ear-like, braided, branched, leaf-like, flower-like, root-like, dendritic, net-like, radial etc. Their cross sections include the broad-u type (the width/depth ratio is over 2, and may reach 10－20), U-type (width/depth ratio from 1 to 2), V-type, Ω-type and (-type. Their occurrences may be attributed to the variations in composition, grain-size, color, fabric and morphology. They have 5 scales: the micro-scale (length and width within 1 cm), small-scale (length and width within 10 cm), medium-scale (length and width ranging from 10－100cm), large-scale (length and width 1－5 m) and giant- scale (length or width over 5 m). |
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| Keywords: | rill marks Yellow River de |
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