發(fā)布時間：2018-01-12 05:11

  本文關(guān)鍵詞：鳳凰島東側(cè)海域表層沉積物粒度分布特征與運移趨勢分析　出處：《海洋科學》2016年04期 　論文類型：期刊論文

  更多相關(guān)文章： 粒度分析 運移趨勢 鳳凰島

【摘要】：為了對鳳凰島近岸海域的工程建設(shè)和岸灘防護提供支持,通過鳳凰島東側(cè)近岸海域的表層沉積物粒度組成及粒度參數(shù)的分析,結(jié)合Flemming三角圖示法和Gao-Collins二維的"粒度趨勢分析"方法,研究了該區(qū)域沉積環(huán)境及沉積物運移趨勢。結(jié)果顯示該區(qū)有5種沉積物類型,呈條帶狀分布,以黏土質(zhì)粉砂為主體;研究區(qū)沉積物整體較細,分選較差,偏態(tài)多為正偏;研究區(qū)整體水動力較弱,表層沉積物中各級配泥沙分布與不同區(qū)域沉積環(huán)境關(guān)系密切。該區(qū)表層沉積物輸運主要受潮流和波浪控制,北部區(qū)域沉積物運移主要受潮流控制,運移方向呈現(xiàn)由海向岸運輸,南部區(qū)域沉積物運移受潮流波浪共同作用,運移方向呈現(xiàn)與岸線大致平行向東北方向運移,金沙灘、銀沙灘沉積物動力過程主要受波浪控制,近岸處運移趨勢呈現(xiàn)由岸向海運輸,離岸處運移趨勢由海向岸。
[Abstract]:In order to coastal waters of the Phoenix Island construction and beach protection support, through the analysis of grain size composition and grain size parameters of coastal waters on the eastern side of the Phoenix Island, with Flemming triangular diagram method and Gao-Collins two-dimensional size trends analysis research of the regional sedimentary environment and sediment transport trend showed. 5 sediment types in this area, a banded distribution in clayey silt sediments as the main body; the whole is fine, poor sorting, skewness is positively biased; the whole area of water power is weak, the relationship between the distribution of sediment distribution in surface sediments and different levels of regional sedimentary environment closely. The surface sediments. Transport is mainly affected by tide and wave control, the northern region of sediment transport is mainly affected by the flow control, the migration direction presented by the sea shore transport, the southern region of sediment transport by tidal currents and waves together Effect of the migration direction showed roughly parallel to the northeast and shoreline migration, Jinshatan, sediment dynamic process of silver beach is mainly affected by the wave control, inshore migration trend from shore to sea transport, offshore transport trend by the sea shore.

【作者單位】： 中國海洋大學海洋地球科學學院;海底科學與探測技術(shù)教育部重點實驗室;國家海洋局第一海洋研究所;
【基金】：海洋公益性行業(yè)科研專項(201005009)~~
【分類號】：P736.2
【正文快照】：

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本文編號：1412822