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Chinese Science Bulletin 2002年第7期47卷 578-581页

作者： DUAN Yi & WANG ZhipingState Key laboratory of Gas Geochemistry, Lanzhou Institute of geology, Chinese Academy of Sciences, Lanzhou 73.000, china Institute of Environmental Science, Beijing Normal {3., Beijing 100875, china State Key laboratory of Gas Geochemistry Lanzhou Institute of Geology Chinese Academy of Sciences Lanzhou China Institute of Environmental Science Beijing Normal University Beijing China

Carbon isotopes are measured for individual long-chain n-alkanes in sediments from the Nansha Sea. The features of carbon isotopic compositions of individual n-alkanes and their origins are studied. The results show that the long-chain n-alkanes have a light carbon isotopic composition and a genetic feature of mixing sources, and low-latitude higher plants and microbes are considered to be their main end member sources. Based on the abundances and carbon isotopic compositions of individual n-alkanes, the fractional contributions of the two end member sources to individual n-alkanes are quantitatively calculated by using a mixing model. The obtained data indicate that the fractional contributions of the two biological sources are different in the three samples. A trend is that the contribution of microbes increases with the depth. These results provide the theory basis and quantitatively studied method for carbon isotopic applied research of individual n-alkanes.

关键词： modern marine sediment individual n-alkane carbon isotopic composition biological source.

THE CHARACTERISTICS AND DISTRIBUTION OF HOLOCENE SAND BODIES IN THE CHANGJIANG DELTA AREA

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Acta Oceanologica Sinica 1983年第1期 84-96页

作者：李从先李萍 marine geology Institute tongji university shanghai

The holocene sand bodies in Changjiang delta area may be classified genetically as river mouth sand, marine sand and river channel-filled sand, which are different in external geometry, internal characteristics, spatial distribution and contact with overlying and underlying beds, The sand bodies ate distributed in two-storeyed beds in vertical sequence. The transgressive sands are overlain by regressive ones, and there is a wedge of marine clay between them.

关键词： Th De THE CHARACTERISTICS AND DISTRIBUTION OF HOLOCENE SAND BODIES IN THE CHANGJIANG DELTA AREA

Study on roughness coefficient for unsubmerged reed in the Changjiang Estuary

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Acta Oceanologica Sinica 2011年第5期30卷 108-113页

作者： GU Fengfeng MU Lin QI Dingman LI Junhua KONG Lingshuang WAN Yuanyang shanghai Estuary and Coastal Science Research Center Shanghai 201201 China National marine Data and Information Service State Oceanic Administration Tianjin 300171 China College of Ocean Environment and Engineering Shanghai Maritime University Shanghai 200135 China

The influence of density,foliage and stem flexibility on the roughness coefficients under unsubmerged conditions,such as Manning＇s n,is investigated *** instrumentation system has been developed for measuring the flow rate ranging from 0.1 to 0.3.L/s under the condition of different artificial foliated *** on the experimental results,the influence on the relationship between n with different density,foliage,flexibility and flow depth is *** is found that the foliage and the density are the important factors affecting Manning＇s *** a range of relatively low velocity and relatively large bending stiffness of stem,Manning＇s n is not influenced significanthy by the flexibility of stem.

关键词： Manning's coefficient foliage density flexibility reed

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混合型细集料轻混凝土的微观结构

同济大学学报（自然科学版） 2002年第8期30卷 959-963页

作者：祁景玉高燕萍王其林同济大学海洋地质与地球物理系上海200092 同济大学材料科学与工程学院上海200092

论述了混合型细集料轻混凝土的微观结构及其转化特点 .着重对矿渣和粉煤灰掺合料对混凝土微观结构的影响、混合型细集料水泥砂浆在不同龄期水化产物的种类、形态、结构特征进行了探讨 .

关键词：轻混凝土混合型细集料水化产物微观结构掺合料粉煤灰矿渣水泥砂浆

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南海东部深海沉积物中孢粉与古环境研究

同济大学学报（自然科学版） 2003年第5期31卷 554-557,609页

作者：张玉兰同济大学海洋地质教育部重点实验室华东师范大学河口海岸国家重点实验室上海200062

通过对南海东部 2 94站深海柱状剖面高分辨孢粉、藻类的研究 ,将 2 94站从下至上划分为 7个孢粉组合带 ,依次为 :Ⅰ带 :Dacrydium Pinus Lithocarpus Quercus(常绿 ) Cyathea Polypodiace;Ⅱ带 :Castanopsis Lithocar pus Dacrydium Qu... 详细信息

通过对南海东部 2 94站深海柱状剖面高分辨孢粉、藻类的研究 ,将 2 94站从下至上划分为 7个孢粉组合带 ,依次为 :Ⅰ带 :Dacrydium Pinus Lithocarpus Quercus(常绿 ) Cyathea Polypodiace;Ⅱ带 :Castanopsis Lithocar pus Dacrydium Quercus(常绿 ) Pinus Polypodiace ;Ⅲ带 :Quercus(常绿 ) Castanopsis Podocarpus Polypodiaceae ;Ⅳ带 :Polypodiaceae Cyathea Pteris Pinus Gramineae ;Ⅴ带 :Quercus(常绿 ) Podocarpus Lithocarpus Cyathea Polypodi aceae;Ⅵ带 :Pinus Quercus(常绿 ) Palmae Mangrovepollen Gramineae ;Ⅶ带 :Dacrydium Palmae MangrovePollen Pinus Cyperaceae Cyathea .并相应恢复了南海东部地区 12万年以来 5个植被、气候演替阶段 ,依次为 :炎热、湿润的热带季雨林—暖热而稍干的热带北缘半常绿季雨林—炎热、湿润的热带季雨林—暖热而稍干的热带北缘半常绿季雨林—炎热、湿润的热带季雨林。结合氧同位素测年资料 ,对 2 94站地层时代划分作了讨论 ,为南海古气候。

关键词：南海孢粉古环境

A LINEAR HYBRID MODEL OF MSE AND BEM FOR FLOATING STRUCTURES IN COASTAL ZONES

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Journal of Hydrodynamics 2006年第6期18卷 649-658页

作者： ZHANG Jun MIAO Guo-ping School of Naval Architecture Ocean and Civil Engineering Shanghai Jiaotong University Shanghai 200030China The First Engineers Scientific Research Institute of the General Armaments Wuxi 214035 China

A linear hybrid model of Mild Slope Equation （MSE） and Boundary Element Method （BEM） is developed to study the wave propagation around floating structures in coastal zones. Both the wave refraction under the influence of topography and the wave diffraction by floating structures are considered. Hence, the model provides wave properties around the coastal floating structures of arbitrary shape but also the wave forces on and the hydrodynamic characteristics of the structures. Different approaches are compared to demonstrate the validity of the present hybrid model. Several numerical tests are carried out for the cases of pontoons under different circumstances. The results show that the influence of topography on the hydrodynamic characteristics of floating structures in coastal regions is important and must not be ignored in the most wave period range with practical interests.

关键词： hybrid model Mild Slope Equation (MSE),Boundary Element Method (BEM) marine floating structures,coastal regions wave propagation wave force

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天然气水合物声学检测技术

同济大学学报（自然科学版） 2004年第7期32卷 977-980页

作者：顾轶东林维正张剑业渝光同济大学声学研究所上海200092 青岛海洋地质研究所山东青岛266071

讨论了天然气水合物在合成和分解过程中声学参数如声速、频率、声波幅度的一些变化规律 ,并利用这些参数的变化对纯水中天然气水合物形成和分解进行声学检测 ,找出声学参数与水合物形成和分解之间的变化规律 ,以达到判断和预测水合物形... 详细信息

讨论了天然气水合物在合成和分解过程中声学参数如声速、频率、声波幅度的一些变化规律 ,并利用这些参数的变化对纯水中天然气水合物形成和分解进行声学检测 ,找出声学参数与水合物形成和分解之间的变化规律 ,以达到判断和预测水合物形成和分解的目的 .

关键词：天然气水合物超声声速频率幅度

Gas formation mechanism of marine carbonate source rocks in china

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Science china Earth Sciences 2005年第4期48卷 441-453页

作者： ZHAO Wenzhi1, WANG Zhaoyun1, HE Haiqing2, ZHANG Mingjie3. WANG Hongjun1, WANG Yunpeng4 & QIN Yong5 1. Research Institute of Petroleum Exploration & Development, Petrochina, Beijing 100083. china 2. Petrochina Exploration & Production, Beijing 100011, china 3. Department of geology, Lanzhou university, Lanzhou 73.000, china 4. Guangzhou Geochemical Institute, Chinese Academy of Sciences, Guangzhou 510640, china 5. china university of Mining and Technology, Xuzhou 221000, china Research Institute of Petroleum Exploration & Development PetroChinaBeijin China Petrochina Exploration & Production Beijing China Department of geology Lanzhou University Lanzhou China Guangzhou Geochemical Institute Chinese Academy of Sciences Guangzhou China china university of Mining and Technology Xuzhou China

By breaking through the conventional ideology on the study of gas-formation mechanism of source rocks which focused on merely the characteristics of source rocks them- selves, and based on the development and distribution characteristics of marine carbonate source rocks in the medium-to-bottom parts of the Chinese superimposed sedimentary basins as well as various processes in the course of gas generation and reservoir forming, the complex hydrocarbon-generating model of carbonates is established. Such a model concerns not only the “three-stage” gas formation characteristics of carbonates, but also the gas generation process due to a thermal cracking of oil and the re-generation process of gas from heated secondary organic matters during the gas-generation and reservoir-forming course. The high-quality hy- drocarbon generating matter of marine carbonate source rocks determined a high gas-oil ratio and tended to form paleo-oil-reservoirs, representing an enrichment process of organic matters. The thermal cracking of oil in palaeo-oil-reservoirs is an important means for the effective forma- tion of gas reservoirs. The secondary organic matters in carbonate reservoirs may regenerate gas after a secondary deep burial, thus becoming an effective gas source.

关键词： carbonate, three-stage hydrocarbon generation, inhibitive effect of maturity, oil-cracking gas, second-ary asphalt gas.

A　BFG　model　for　calculation　of　tidal　current　and　diffusion　of　pollutants　in　nearshore　areas

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Acta Oceanologica Sinica 1996年第3期15卷 283-296页

作者： Shi Fengyan and Zheng Lianyuan(State Key laboratory of Estuarine and ￣tal Research, Institute of Estuarine and Coastal Research, East china NOrmaluniversity, {3. 200062, china)(Department of marine audiences, the university of georgia. Athens. GA State Key laboratory of Estuarine and Coastal Research Institute of Estuarine and Coastal Research East China Normal University Shanghai 200062 China Department of marine Sciences University of Georgia Athens GA 30602-2206 United States

This study presents a boundary-fitted grid (BFG) numerical model with an aim to simulate the tidal currents and diffusion of pollutants in complicated nearshore areas. To suit the general model to any curvilinear grids, generalized 2-D shallow sea dynamic equations and the advection diffusion equation are derived in curvilinear coordinates, and the contravariant components of the velocity vector are adopted for easily realizing boundary conditions and making the equations conservational. As the generalized equations are not limited by a speCific coordinate transformation. a self-adaptive grid generation method is then proposed conveniently to generate a boundary-fitted and varying SPacing *** calculation in the Yangpu Bay and the Xinying Bay shows that this is an effective model for calculating tidal currents and diffusion of pollutants in the more complicated nearshore areas.

关键词： BFG model numerical calculation shallow sea equations and advection diffusion equation in curvilinear Coordinates

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基于重力异常连续复小波变换的断裂分析

石油物探 2009年第3期48卷 303-306页

作者：刁博王家林程顺有同济大学海洋地质教育部重点实验室上海200092 西北大学大陆动力学国家重点实验室陕西西安710069

阐述了连续复小波变换和系数量化编码的方法原理,并基于复杂地质模型讨论了重力异常中的断裂特征与小波系数极值特征的对应关系。小波变换系数量化编码结果表明,低尺度小波系数极值可以准确定位断裂在地表的位置;随着尺度的增加,小波系... 详细信息

阐述了连续复小波变换和系数量化编码的方法原理,并基于复杂地质模型讨论了重力异常中的断裂特征与小波系数极值特征的对应关系。小波变换系数量化编码结果表明,低尺度小波系数极值可以准确定位断裂在地表的位置;随着尺度的增加,小波系数极值会发生偏移,可以判断断裂的倾向和倾角的相对大小;小波系数极值可以反映断裂两侧地层的密度差异,为断裂分析提供物性信息。将此方法应用于塔里木盆地和天山地区的实际重力资料解释,结果不仅与实际相符,并得出中天山与南天山可能具有特殊构造模式的认识。

关键词：连续复小波变换矩阵量化编码断裂分析重力异常反演天山造山带