节点文献

防城湾自然环境与沉积物组成分析

Analysis of the Natural Environment and Surface Sedimental Composition from Fangcheng Bay

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 黎广钊农华琼刘敬合

【Author】 Li Guangzhao Nong Huaqiong Liu Jinghe (Guangxi Institute of Oceanology,Beihai,536000)

【机构】 广西海洋研究所

【摘要】 讨论防城湾水动力条件、地貌特征及沉积物组成。其中,水下动力地貌有6种类型:潮间浅滩、潮流冲刷深槽、水下拦门沙坝、水下沙嘴、水下岸坡、海底平原。表层沉积物类型有6种:砂砾、粗砂、粗中砂、中细砂、细砂、粉砂质粘土。沉积物中重矿物组合为钛铁矿—锆石—电气石。沉积物中有孔虫、介形虫,划分为4个组合带:卡纳利拟单栏虫组合;毕克卷转虫变种组合;毕克卷转虫—异地希望虫组合;毕克卷转虫变种—球室刺房虫—异地希望虫组合

【Abstract】 The hydraulic dynamic conditioin, morphological feature and sedimental composition from Fangcheng Bay were discussed. There are six types of the underwater dynamic morphology in Fangcheng Bay: intertidal shoal, tidal current scour, underwater entrance bar, underwater sandy mouth, underwater slope, submarine plain. The surface sediment possess six types: sandy gravel, coarse sand, coarse middle sand,middle fine sand, fine sand,silty clay. The heavy minerals are named as ilmenite-zircon-tourmaline assemblage in the sediment. Foraminiferan and ostracod are abundant in the sediment. Its four assemblage zones can be divided as follows: Haplophragmoides cannariensis assemblage zone, distributed in river mouth forked course; Ammonia beccarii var. -H.cannariensis assemblage zone intertidal zone; A. baccarii var. -Elphidium advenum assemblage zone in underwater slope; A.beccarii var. -Schackoinella globosa- E.advenum assemblage zone in shallow sea.

  • 【文献出处】 广西科学院学报 ,JOURNAL OF GUANGXI ACADEMY OF SCIENCES , 编辑部邮箱 ,1997年04期
  • 【分类号】P737.22
  • 【被引频次】3
  • 【下载频次】172
节点文献中: 

本文链接的文献网络图示:

本文的引文网络