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subsidence history
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  沉降史
     Subsidence History Analysis of Bayanhot Basin
     巴彦浩特盆地沉降史分析
短句来源
     Quantitative Analysis of the Subsidence History in the Border Region of Sichuan-Hubei-Hunan
     川鄂湘边区沉降史定量分析
短句来源
     Subsidence History and Sedimentary Response in the North of Western Ordos Basin
     鄂尔多斯盆地西缘北段沉降史与沉积响应
短句来源
     In the Mesozoic(evolution) phase(J_(1)-J_(2)),the subsidence history curve has the quality of extensional basin,and the restoration result of the balanced cross sections has the quality of extension,too. The maximal extension ratio of it is 1.9% and the rate is 19.48 m/(Ma·km).
     中生代演化阶段(J1—J2),沉降史曲线具有伸展盆地特征,平衡剖面恢复结果也以伸展为主,最大伸展率和伸展速率分别达1.9%和19.48 m/(M a.km)。
短句来源
     ANALYSIS OF CENOZOIC TECTONIC SUBSIDENCE HISTORY OF THE EAST TECTONIC BELTS IN HUANGHUA DEPRESSION
     黄骅坳陷东部构造带新生代构造沉降史分析
短句来源
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  沉降历史
     Combining with the data of fission track and paleogeography,subsidence history in Cretaceous of Kuqa depression can be divided into four stages,(1) middle Berriasian(141.9-141.2Ma): sharp subsidence;
     结合裂变径迹资料和岩相古地理特征,将库车坳陷白垩系沉降历史分为四个演化阶段:(1)Berriasian中期(141.9~141.2 M a):极快速沉降;
短句来源
     Western basins developed in different subsidence history and hot system and deforming had complex produce, ejection, migration, and accumulation and destroying of petroleum and had a destroying or regulating history.
     西部盆地在不同大地构造旋回中的沉降历史和热体制,以及变形改造的差异,导致了复杂的油气生、排、运、聚、散等成藏过程及破坏或调整的历史。
  “subsidence history”译为未确定词的双语例句
     According to the h omogenization temperature of fluid inclusions, the paleo geotemperature mode of basin and the reservoir subsidence history, the time and depth of fluid inclusi ons formation can be confirmed, which shows the time of hydrocarbon pool formati on.
     根据包裹体的均一温度 ,结合盆地的古地温模式和储集层埋藏历史 ,可以确定包裹体形成时的地层埋深及对应的地质时代 ,依此可以确定油气藏形成时间。 通过某油气藏中储集层流体包裹体特征的研究 ,从油气运移及充注圈闭的角度 ,对该油气藏的形成机制作出了合理的阐述。
短句来源
     One of the frontier recearch of basin analysis in recent years is to analyze the tectonic subsidence history of depositional basins which occur in orogens at different geohistory stage, and to discuss the geodynamic processes involved with the basins.
     对造山带各地史阶段的沉积盆地进行构造沉降分析,进而探讨其地球动力学过程,是近年来盆地分析的前缘研究之一。
短句来源
     The different subsidence history not only demonstrates that the two areas have different tectonic settings, but also proves that the Caledonian basin migrated to northwest when the Cathaysian plate was gradually subducted toward Yangtze plate from southeast to northwest.
     前陆挠曲阶段,由构造宁静期的缓慢沉降向构造活动期的快速沉降转化的分界拐点也偏晚。 这些差别这一方面说明了两地区具有不同的构造背景,另一方面也反映了华夏板块由南东逐渐地向北西扬子板块靠拢,沉积盆地相应地向西北迁移的动力学过程。
短句来源
     Based on the stratigraphic thickness, ages, lithosphere, porosity and seismic sections, the sedimentary and subsidence history can be obtained from subsidence curves by using backstripping analysis.
     将地震剖面与钻井资料结合起来 ,根据钻井取得的地层厚度、时代、岩性、密度、孔隙度等信息 ,对剖面上任意点进行回剥分析 ,并运用均衡原理绘出沉降曲线 ,从而给出沉积史和构造史 .
短句来源
     The integrated modelling system of sedimentary basins established in this paper can be used to (1 ) mimic the subsidence history and estimate the amount (β) of lithosphere stretching;
     文中建立的拉伸盆地模拟系统可模拟拉伸盆地的沉降过程、估算盆地的拉伸量、分析盆地深部结构和热流背景;
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  subsidence history
In an integrated analysis, metamorphic processes in the accreted crust, potential field anomalies, temperature field and subsidence history are summarized into a model for the development of the North German Basin.
      
Paleobathymetric data, based on plankton/benthos ratio provided input for the analysis of the subsidence history.
      
Badenian (Middle Miocene) basin development in SW Hungary: subsidence history based on quantitative paleobathymetry of foraminif
      
The caldera of Santorini is a composite structure with a subsidence history extending over 100 ka or more.
      
Backstripping of four marine wells on the northern margin of the Alboran Basin reveals a tectonic subsidence history that varies laterally along the margin from east to west.
      
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The geology of the ocean basins has been investigated by geophysical methods and by sampling deepsea sediments. The theory of seafloor spreading, the geothermal evolution of ocean lithosphere, the subsidence history of ocean floor, the hot-spot theory, the theories on the development of active and passive ocean margins, formulated on the basis of geophysical considerations, have been confirmed by drilling investigations. Studies of samples from beneath deepsea floor provided evidence for climatic cooling...

The geology of the ocean basins has been investigated by geophysical methods and by sampling deepsea sediments. The theory of seafloor spreading, the geothermal evolution of ocean lithosphere, the subsidence history of ocean floor, the hot-spot theory, the theories on the development of active and passive ocean margins, formulated on the basis of geophysical considerations, have been confirmed by drilling investigations. Studies of samples from beneath deepsea floor provided evidence for climatic cooling during the Cenozoic, and yielded data for the recognition of crisis in ocean environments and for the reconstruction of paleoceanographic circulations.

1968年以前,研究洋底地质学的手段主要是地球物理学和海洋地质学.1968年,联合海洋研究所深部取样组织(JOIDES)成立,并在同一年发起开展深海钻探计划(DSDP).从1968年到1983年,格拉玛挑战者号钻井船做了多次环球航行,在96个航次中总共完成了624个钻孔.这些工作使海洋地质学发展成为一门可以与大陆地质学并驾齐驱的学科.现在,我们不仅可以通过深钻或直接研究深海岩芯来验证早先根据地球物理调查提出的各种理论推测,钻探本身还带来了许多意想不到的新发现.这些新数据、新思想和新结论极大地加深了我们对海洋演化历史的认识.本文试图就我们在深海钻探计划实施15年以后获得的主要成果作一总结.

The restoration of geothermal history is one of important parts in basin modelling. However, in present analysis on geotherms of extensional basins by geophysical techniques, the influence of radioactive heat generation within the lithosphere is neglected in general. In this paper, therefore, a model of heat generation by radioactive elements of the lithosphere is developed and formulae for geothermal history and subsidence history are proposed. A fact is obvious that the geothermal history of extensional...

The restoration of geothermal history is one of important parts in basin modelling. However, in present analysis on geotherms of extensional basins by geophysical techniques, the influence of radioactive heat generation within the lithosphere is neglected in general. In this paper, therefore, a model of heat generation by radioactive elements of the lithosphere is developed and formulae for geothermal history and subsidence history are proposed. A fact is obvious that the geothermal history of extensional basins is much affected by the heat generation of radioactive elements, therefore, it can not be overlooked in the analysis cf the geothermal evolution of extensional basins.

恢复盆地地热史是盆地模拟中的一个重要部分。目前,用地球物理方法恢复拉张盆地的地热史都忽略了岩石圈放射性元素生热的影响。本文中,我们研究了放射性元素的生热效应模式,给出地热史和沉降史计算公式,发现放射性元素的生热效应对地热史影响很大,不能忽略。用这些公式恢复苏北盆地一口井的古热流和古地温,并模拟镜质体反射率(R~0),与实测值吻合较好。同时,用不含生热效应的模式恢复该井的热流,则与实测值相差很大。所以,用地球物理方法恢复大陆内部拉张盆地的地热史不能忽略岩石圈内放射性元素的生热效应,必须用含放射性元素生热率的地热史模式。

Carbonate platforms tend to grow near to sea level. Thus they record the combined history of subsidence and sealevel fluctuation on passive mar- gins. Sedimentologyntology research on the Cambrian carbonate platform margin and slope in east Guizhou and west Hunan provides detailed information on subsidence history of the south-east passive margin of the Yangtze Plate as well as on sedimentary models and evolution of the margin. Main results are:1. The Cambrian and lower Ordovician carbonate platform developed...

Carbonate platforms tend to grow near to sea level. Thus they record the combined history of subsidence and sealevel fluctuation on passive mar- gins. Sedimentologyntology research on the Cambrian carbonate platform margin and slope in east Guizhou and west Hunan provides detailed information on subsidence history of the south-east passive margin of the Yangtze Plate as well as on sedimentary models and evolution of the margin. Main results are:1. The Cambrian and lower Ordovician carbonate platform developed on an underlying siliclastic shelf. The evolution of carbonate platform can be divided into four stages: ( 1 ) ramp evolved into steepened ramp. ( 2 ) initially drowned platform rapidly evolved into ramp, followed by accrestionary platform. ( 3 ) plalform covered by terrigenous influx rapidly evolved into ramp. followed by accretionary platform and finally by-pass margin platform. ( 4 ) by-pass margin platform evolved into a ccretionary platform.2. The Cambrian to lower Ordovician carbonate platform margin aggraded and prograded throughout this time, reflecting steady tectonic subsidence and suggesting that the south-east margin evolved into mature passive margin through crust thinning and subsidence.3. The favourable tectonic setting and climate resulted in a shallowing-upward megacycle that first coarsens upward, then fines upward. A deeper water ramp or slope shallowing upward into a marginal shoal, and eventually lagoon and tidal flats formed on platform. A coarsing and thickening upward megacycle formed on slope.4. The progradation of platform margin shifted the shelf break eastward and seaward. As a result. calcirudites of the slope cycle rise eastward.5. Episodic and uneven progradation of the platform margin produced a variety of secondary cycles of different duration.,Position, and extent.6. The geometry of slope deposits indicates development of a slope apron as well as a bass-of-slope apron in the early late Cambrian and a debris sheet at the end of the Cambrian.7. Various mud and ciast-supported fabries of debris flow sediments, and calculations of debris static sterength and paleoslope gradients show a variety of support mechanism. Pulsating movement and flow transformation to turbidity currents as well as slide transformation to flows were common in the submarine carbonate debris flows.

本文研究了寒武纪台地边缘和斜坡沉积特征、沉积模式演化及与扬子板块东南缘构造演化的关系,认为该区从寒武纪到早奥陶世为长期发育以加积和推进为主的碳酸盐台地;该区长期处于稳定下沉的构造背景,说明扬子板块东南缘已进入成熟被动陆缘阶段。在台地和斜坡上形成向上变浅或向上先变粗后变细的沉积旋回。并着重论述了斜坡碎屑流沉积类型、特征和成因机制;其碳酸盐碎屑流主要为复合支撑机制,其流动过程中普遍存在脉动性或波动性及流动转化现象;系统建立了寒武纪台地边缘模式及演化序列;探讨了板块构造演化与成矿作用关系,指出湘黔汞矿带、铅锌矿带可能与逆冲席有关。

 
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