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文章导航 > 沉积学报 > 2000 > 18(4): 527-533

A Preliminary Study of Rill Marks in the Yellow River Delta[J]. Acta Sedimentologica Sinica, 2000, 18(4): 527-533.

Citation:

A Preliminary Study of Rill Marks in the Yellow River Delta[J]. Acta Sedimentologica Sinica, 2000, 18(4): 527-533.

A Preliminary Study of Rill Marks in the Yellow River Delta[J]. Acta Sedimentologica Sinica, 2000, 18(4): 527-533.

Citation:

A Preliminary Study of Rill Marks in the Yellow River Delta[J]. Acta Sedimentologica Sinica, 2000, 18(4): 527-533.

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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中图分类号: P512.2

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A Preliminary Study of Rill Marks in the Yellow River Delta

摘要

- rill marks /
- Yellow River de
Abstract: In recent years, the flow of the Yellow River has often been interrupted, 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).
- Zhong Jianhua, male, born in 1958, Professor, Post Ph. D., tectonics /

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参考文献(22)

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