太平洋中部多金属结核稀土元素地球化学

用“海洋四号“调查船于１９８６－１９８８年在太平洋中部进行了３个航次调查，对所取样品运用仪器中子活化方法进行了ＲＥＥ分析。结果表明：多金属结核作为一种特殊类型的深海沉积物，特别富含ＲＥＥ。太平洋中部多金属结核大多具有Ｃｅ正异常。海山结壳ΣＲＥＥ最高，早期成岩型结核最低，水成型结核介于二者之间。早期成岩型结核Ｃｅ的正异常明显弱于水成型结核，甚至出现Ｃｅ的负异常。海山、丘陵区结核的ΣＲＥＥ高于平原、凹     

Underwater Explosion Treatment of Marine Soft Foundation

The consolidation of soft foundation is a problem that commonly appears in harbor construction engineering on muddy coast. Introduced in this paper is the experimental study on underwater explosion treatment of soft foundation, including the regulations of explosion hollow development and medium movement, the law of similarity of densification and settlement of filled stone mass by shock wave pressure and explosion energy and their construction technologies, etc. A number of projects have been completed by applying this new technique, and the technique itself has been proved practicable.     

长江口海域锌的存在形式及其分布规律的初步探讨

锌是海水中有毒害的几个重金属痕量元素之一,在水体中以不同的形式出现.由于存在的形态不同,其所参与的生物、化学和地质过程不同,危害也就不同.因此,开展长江口海域锌的存在形式及其迁移规律的研究,不仅对研究海洋环境地球化学具有理论意义,而且为制定水质标准、发展海洋生产力提供科学依据等也具有十分重要的意义.     

Water Wave Refraction and Diffraction over Frictional Topography

- This paper considers the effects of wave energy dissipation induced by sea-bottom friction on the computational results of water wave refraction and diffraction with the parabolic equation method. The presented results show that the friction factor formula adopted in this paper is of higher numerical accuracy than that introduced by Dalrymphe (1984), and it can be used to compute wave propagation over large open areas.     

多金属结核生长过程中元素通量的变化规律

本文主要研究太平洋ＣＣ区多金属结核ＣＣＡ３３，ＣＣＢ２９，ＣＣＣ５０，ＣＣＣ１４生长过程中锰、铁、镍、铜的通量（ＦＭｎ），ＦＦｅ，ＦＮｉ，ＦＣｕ）的变化规律．研究表明：１．结核生长过程中Ｍｎ，Ｆｅ，Ｎｉ和Ｃｕ的通量都是波动性的；２．ＦＭｎ与ＦＦｅ，ＦＮｉ，ＦＣｕ均呈正相关性；３．结核的元素通量与结核的成因类型和生长阶段密切相关，并记录了海底缺氧事件；４．结核的元素通量存在区域性差异，是沉积环境不同的反映。     

铁锰结核结壳生长过程的一种理论假设

铁锰结核成矿物质的直接来源是大洋底层水和沉积物孔隙水，结壳只有底层水，因此，底层水和孔隙水的物理化学特征就成为理解铁锰结核（壳）成矿作用特征与过程的关键。铁锰结核（壳）内部构造的两个明显特征是：①韵律性的环状纹层构造，和②树枝状构造，这两种构造是典型的远离平衡的非线性地质作用的产物。正常情况下，海底水—沉积物界面系统的底层水、孔隙水中Ｍｎ、Ｆｅ是不饱和的。因此，铁锰结核（壳）不可能在平衡状态下连续生长。本文提出铁锰结核（壳）生长的自反馈“振荡式”模型。     

多金属结核瞬时生长速率及其意义

本文用Ｘ射线荧光光谱分析，沿结核壳层的生长方向逐点扫描测定铁锰含量，计算结核壳层的瞬时生长速率，划分结核壳层的生长阶段，计算各生长阶段的生长速率，并在结构壳层中建立高分辨率的时间标尺，重建多金属结核生长历史。     

虾塘养殖中有机质自身污染速率及程度的研究

利用养殖期间水体中颗粒有机质垂直迁移通量，测定了虾塘自污速率；并以虾塘沉积物的Ｅｈ和Ｃｏｍ值为指标，结合其空间分布形式，初步探讨了虾塘中有机质污染程度。结果表明，新、旧虾塘尤其是不同养殖区域间的自污速率都存在明显差别；而沉积物中Ｅｈ和Ｃｏｍ值的垂直分布形式，则可能成为虾塘有机质污染程度的重要评估参数。     

Halophilic Vibrios in the waters of Xiamen Harbor and Daya Bay

ＨａｌｏｐｈｉｌｉｃＶｉｂｒｉｏｓｉｎｔｈｅｗａｔｅｒｓｏｆＸｉａｍｅｎＨａｒｂｏｒａｎｄＤａｙａＢａｙ￥ＮｉＣｈｕｎｚｈｉ；ＹｅＤｅｚａｎ；ＬｉｎＹａｎｓｈｕｎ；ＺｈｏｕＺｏｎｇｃｈｅｎｇ；ＹａｏＲｕｉｍｅｉａｎｄＧｕＪｉｎｇｙｕ（ＴｈｉｒｄＩｎｓ...     

Experimental Study on Rectangular Floating Breakwaters

This paper proposes ten types of improved floating breakwaters for experiment with regular waves, based on the experience in the development and manufacture of existing floating breakwaters both at home and abroad, and on the results of experimental studies on the hydraulic characteristics of several types of floating breakwaters. The wave heights before and behind the breakwaters are measured, the movements of floating breakwaters are observed and the chain forces of the floating breakwaters are measured. The paper studies and compares the hydraulic characteristics of the improved rectangular floating breakwaters of which the internal and external structures and their installation methods are changed. Finally the optimal type of structure is selected through experiments.