扇三角洲沉积体系及其与油气聚集关系   总被引：23，自引：2，他引：21  

焦养泉  周海民 《沉积学报》1998,16(1):70-75

扇三角洲沉积体系是断陷盆地中极为发育的一种沉积体系,主要由扇三角洲平原组合、扇三角洲前缘组合和前三角洲沉积构成,可识别出9种成因相。受沉积物供给速率、可容空间增长速率及盆缘断裂产状等因素控制可划分出退积型、加积型、前积型、陡坡型和缓坡型5种扇三角洲类型。位于扇三角洲平原的辫状分流河道砂体及其位于扇三角洲前缘的与之有成因联系的水下分流河口坝、洪水型重力流砂体等物性好,可以构成优质储层。含油性勘探成果亦证实各主力油层段平面上主要分布于扇三角洲前缘及分流间湾区,小部分位于扇三角洲平原区。受埋藏深度和成岩场的影响,不同地区、不同层位主力油层段的物性与岩性相关性各异。因此,应用沉积体系分布与油气聚集规律挖掘剩余油层及进行远景区预测是有效的与可行的。  相似文献   

贵州六盘水地区水城矿区晚二叠世煤的煤质特征及其控制因素   总被引：7，自引：0，他引：7  

曾荣树  庄新国 《岩石学报》1998,14(4):549-558

本文中研究概括了六盘水地区水城矿区晚二叠世煤的煤岩学、煤化学和煤地球化学的研究结果,探讨了煤质的控制因素。研究结果表明水城矿区煤具有适合于炼焦用煤的煤岩煤质特征（中挥发分烟煤和高挥发分烟煤Ａ,适中的显微组分比例,４９．９％～８１．８％镜质组,１１．９％～３１．９％惰性组,０．４％～１６．９％壳质组,中－低的硫含量,０．３４％～１．５％）。水城煤的煤级主要受深成变质作用的影响。水城煤的岩石学特征主要受晚二叠世水城三角洲的控制。将水城矿区煤的微量元素含量与世界平均的微量元素进行比较,水城煤具有Ｓｅ、Ｚｒ、Ｃｒ、Ｃｏ、Ｕ和Ｔｈ稍高富集,Ｃｓ、Ａｓ和Ｂａ低富集的特点。煤中Ｂｒ和Ｃｌ具有亲有机性  相似文献   

山西平朔安太堡露天矿9号煤层中的微量元素          下载免费PDF全文

Zhuang Xinguo 《地球科学》1998,23(2):18-2

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用Motif工具库设计地震正演模拟系统人机交互界面     

庄东海  曾庆传 《物探化探计算技术》1998,20(4):328-334

Ｍｏｔｉｆ的功能概要地说就是对各种Ｗｉｄｇｅｔ的创建、管理和回调。利用Ｍｏｔｉｆ工具库为该系统设计人机交互界面的主要步骤为：根据有限元法地震正演模拟系统的总体结构,编程设计系统各层次结构的接口界面,主要包括主窗口、菜单拉杆、下拉菜单和绘图基的创建以及模型数据输入和图形的绘制。有限元法地震正演模拟系统的总体结构由四个层次的内容组成,其主要功能是：输入模型参数和排列参数（包括激发、接收参数）;进行有限元法地震正演模拟计算;修改模型参数并重新进行计算。  相似文献   

半拉格朗日方法在全球原始方程模式中的实现   总被引：2，自引：0，他引：2  

陈起英  庄世宇  金之雁 《气象》1998,24(10):20-25

简单介绍了半拉格朗日平流方案的基本概念,并详细总结了基估全球原始方程模式,特别是在ＩＦＳ的具体实现过程,拉格朗日平流的观点是着流体质点看流体运动,基贩关键是流体轨迹的计算。轨迹中点和起始点水平坐标的示得可以利用球面三角,直接在球极坐标中进行,并采用一些较高的近似。为了充分获得半拉格朗日方案析益处,在起始点的内插能工巧匠春阶数至少应在四阶以上,为避免昂贵的三维三次内插,可以采用三维“准三次”内插 。  相似文献   

RESEARCH ACTIVITIES ON LAND USE/COVER CHANGE IN THE PAST TEN YEARS IN CHINA USING SPACE TECHNOLOGY   总被引：8，自引：0，他引：8  

庄大方  刘纪远  刘明亮 《中国地理科学(英文版)》1999,9(4):330-334

１　ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｒｅｃｅｎｔａｎｄｆｕｔｕｒｅｄｅｖｅｌｏｐｍｅｎｔｏｆｓｐａｃｅｂａｓｅｄｒｅｍｏｔｅｓｅｎｓｉｎｇｔｅｃｈｎｏｌｏｇｙｈａｓｂｒｏｕｇｈｔａｒｅｆｏｒｍａｔｉｏｎｔｏｒｅｓｅａｒｃｈｗｏｒｋａｓｗｅｌｌａｓｆｏｒｍｕｌａｔｉｎｇｓｕｉｔａｂｌｅｐｏｌｉｃｙｆｏｒｐｏｐｕｌａｔｉｏｎ，ｒｅｓｏｕｒｃｅｓ，ｅｎｖｉｒｏｎｍｅｎｔａｎｄｄｅｖｅｌｏｐｍｅｎｔ．Ｔｈｒｏｕｇｈｒｅａｌｔｉｍｅａｎｄｐｅｒｉｏｄｉｃｏｂｓｅｒｖａｔｉｏｎｓｏｆａｌａｒｇｅａｒ…  相似文献   

原子掺杂对单元材料结晶能力的影响     

彭坤  明辰  叶祥熙  张文献  庄军  宁西京 《海洋学报》2010,32(10):7245-7251

2009年我们建立了一个凝结势模型用以预测材料形成单晶体的能力,表明单元体材料(Ni,Al,Cu,Ar,Mg)的结晶能力随凝结势的增大而单调增强.本文将凝结势模型应用于二元材料体系,并结合分子动力学模拟研究了6% Al原子掺杂对于Ni单晶材料结晶能力的影响.模拟结果发现,Al元素的掺杂会大大减弱Ni单晶的结晶能力,在此基础上提出了二元材料体系凝结势的定义,表明凝结势模型可广泛应用于预测二元体材料的结晶能力.  相似文献   

Screening of extraction methods for glycoproteins from jellyfish (Rhopilema esculentum) oral-arms by high performance liquid chromatography     

Guoyan Ren  Bafang Li  Xue Zhao  Yongliang Zhuang  Mingyan Yan  Hu Hou  Xiukun Zhang  Li Chen 《中国海洋大学学报(英文版)》2009,8(1):83-88

In order to select an optimum extraction method for the target glycoprotein (TGP) from jellyfish (Rhopilema esculentum) oral-arms, a high performance liquid chromatography (HPLC)-assay for the determination of the TGP was developed. Purified target glycoprotein was taken as a standard glycoprotein. The results showed that the calibration curves for peak area plotted against concentration for TGP were linear (r = 0.9984, y = 4.5895x+47.601) over concentrations ranging from 50 to 400 mgL-1. The mean extraction recovery was 97.84% (CV2.60%). The fractions containing TGP were isolated from jellyfish (R. esculentum) oral-arms by four extraction methods: 1) water extraction (WE), 2) phosphate buffer solution (PBS) extraction (PE), 3) ultrasound-assisted water extraction (UA-WE), 4) ultrasound-assisted PBS extraction (UA-PE). The lyophilized extract was dissolved in Milli-Q water and analyzed directly on a short TSK-GEL G4000PWXL (7.8 mm×300 mm) column. Our results indicated that the UA-PE method was the optimum extraction method selected by HPLC.  相似文献   

The scavenging of free radical and oxygen species activities and hydration capacity of collagen hydrolysates from walleye pollock (Theragra chalcogramma) skin     

Yongliang Zhuang  Bafang Li  Xue Zhao 《中国海洋大学学报(英文版)》2009,8(2):171-176

Fish skin collagen hydrolysates (FSCH) were prepared from walleye pollock (Theragra chalcogramma) using a mixture of enzymes, namely trypsin and flavourzyme. The degree of hydrolysis of the skin collagen was 27.3%. FSCH was mainly composed of low-molecular-weight peptides and the relative proportion of <1000Da fraction was 70.6%. Free radical and oxygen species scavenging activities of FSCH were investigated in four model systems, including diphenylpicrylhy-drazyl radical (DPPH), superoxide anion radical, hydroxyl radical and hydrogen peroxide model, and compared with that of a native antioxidant, reduced glutathione (GSH). FSCH was also evaluated by water-absorbing and water-holding capacity. The results showed that FSCH was able to scavenge free radical and oxygen species significantly and to enhance water-absorbing and water-holding capacity remarkably. Therefore, FSCH may have potential applications in the medicine and food industries.  相似文献   

Soil evolution features of debris flow waste-shoal land   总被引：1，自引：1，他引：0  

Peng Cui  Yonggang Ge  Jianqi Zhuang  Daojie Wang 《山地科学学报》2009,6(2):181-188

The reclamation and utilization of debris flow waste-shoal land plays an important role in the mitigation and control of debris flow hazards, which thus contributes a lot to the exploitation of insufficient land resources in mountainous areas and the reduction of losses caused by debris flow. The aim of this paper is to discuss the features and mechanism of soil evolution of debris flow waste-shoal land so as to search for the available modes of its reclamation and utilization. The Jiangjiagou Ravine, a typical debris flow ravine, was selected to study soil evolution features of debris flow waste-shoal land based on the analysis of soil physieochemical properties and soil microstructure. It was found that the soil evolution rates of debris flow waste-shoal land varied with different modes of reclamation. For the land which had been reclaimed for less than lO years, soil evolved most rapidly in paddy fields, and more rapidly in dry farmland than in naturally restored waste-shoal land. For the land which had been used for more than lo years, the soil evolution rates of dry farmland, naturally restored waste-shoal land and paddy farmland decreased in the file. For the same utilization period of time, significant differences were recognized in soil evolution features under different modes of reclamation. Analysis data showed that soil clay content, soil thickness, the psephicity of skeleton particles and contents of microaggregates （〈0.02 mm） in paddy farmland were all highest. Soil nutrients and porosity of dry farmland were better than those of paddy farmland and naturally restored waste-shoal land, and those of paddy farmland were superior to those of naturally restored waste-shoal land. Paddy farmland characterized by rapid pedogenesis, stable evolution and high utilizability was the priority candidate for the reclamation and utilization of debris flow waste -shoal land.  相似文献