| 长江口主航道水下底床表面形态与浅地层结构 |
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| 引用本文： | 陈卫民,刘苍字.长江口主航道水下底床表面形态与浅地层结构[J].海岸工程,1996,15(3):25-30. |
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| 作者姓名： | 陈卫民 刘苍字 |
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| 作者单位： | 青岛海洋大学河口所!青岛266003(陈卫民，杨作升)，华东师范大学河口所!上海200062(刘苍字) |
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| 摘 要： | 除平滑海底外，长江口主航道水下底床上还发育有沙波，沙纹、沙斑及形态规则的小型冲蚀凹坑、冲沟和疏浚沟痕等微地貌形态，基本上沿岸呈带状分布。根据声波反射原理，将航道内３０ｍ厚的地层划分为两层，并据此对长江口的现代沉积环境作了初步分析。
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| 关 键 词： | 长江 主航道 水下底床 地貌 沉积 地层结构 |
SUBMARINE FEATURES AND SUBBOTTOM PROFILE TEXTURE OF THE MAIN CHANNEL,MODERN CHANGJIANG RIVER ESTUARY |
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| Chen Weimin, Liu Cangzi, Yang Zuosheng.SUBMARINE FEATURES AND SUBBOTTOM PROFILE TEXTURE OF THE MAIN CHANNEL,MODERN CHANGJIANG RIVER ESTUARY[J].Coastal Engineering,1996,15(3):25-30. |
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| Authors: | Chen Weimin Liu Cangzi Yang Zuosheng |
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| Abstract: | There are sand wave, sand ripple, sand patch and some small irregular eroded hollows, gullies and dredged signs developed on the main channel bottom of the Changjiang River estuary besides smooth seafloor, and distributed in zone along shore. According to the principle of acoustic reflection, the bottom sediment of main channel within 30m depth be devided into two layers, and analyzed premaryly the deposit environment of the modern Changjiang River estuary upon to this. |
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| Keywords: | Changjiang River main channel submarine bottom micro-morphology deposit |
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