上海国土资源2016，Vol.37Issue(2)：84-88,95,6.DOI:10.3969/j.issn.2095-1329.2016.02.020
长江口北槽沉积物的粒度特征和输运趋势探讨
Discussion on grain-size characteristics of sealfoor sediment and transport pattern in the northern passage of the Yangtze River estuary
摘要
Abstract
Grain-size distribution and transport pattern of sealfoor sediment data col ected from the northern passage of the Yangtze River estuary were studied using the Gao-Col ins grain-size trend analysis method with grain-size data. The results showed that the sediments are general y ifne in the northern passage, where sandy silt and silt are dominant. The sediments showed overal poor sorting, and skew ness coefifcient of between partial pole and nearly symmetric;kurtosis coefifcient was smal with less than 1.8 and platy kurtosis. In the deep trough the sediments were transported in a two-way direction;they were transported to land in a low-energy environment and to the sea in a high-energy environment. The transportation of sediments in the southern slope was similar to that in the deep trough. In the northern slope, the sediments were transported to land. The difference in the direction of sediment transport is closely related to their environment.关键词
长江口/北槽/沉积物/粒径特征/运移模式Key words
Yangtze River estuary/northern passage/sediment/grain-size characteristics/transport pattern分类
天文与地球科学引用本文复制引用
谢火艳,王如生,张国安,李占海..长江口北槽沉积物的粒度特征和输运趋势探讨[J].上海国土资源,2016,37(2):84-88,95,6.基金项目
国家自然科学基金项目(41376098) （41376098）
国家自然科学基金面上项目(41176069) （41176069）
