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seismic profiles interpretation
相关语句
  相似匹配句对
     DIAGNOSIS OF PROGRADATIONAL CONFIGURATION ON SEISMIC PROFILES
     地震剖面上进积现象的识别
短句来源
     ACOUSTICSTRATIGRAPHIC INTERPRETATION OF SHALLOW SEISMIC ACOUSTIC PROFILES
     浅层地震声学剖面的声地层学解释
短句来源
     Simulated test verifies the interpretation on seismic profiles.
     模拟试验验证了地震剖面解释结果。
短句来源
     ESTIMATION OF RESERVES IN FRACTURED RESERVOIRS——BY APPLICATION OF SEISMIC PROFILES
     裂缝性储集层的储量估算地震剖面图的一种应用
短句来源
     On seismic resolution
     地震分辨率
短句来源
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Based on marine seismic profile interpretation and some continental-oceanic data, time-space distribution and general features of active faults in the Yellow and Bohai Seas and in the neighbouring area have been studied. Inherited NE active fault makes up dominant structure in the Bohai Sea and in its coast land.The North Yellow Sea has a similarity to the Bohai Sea, but active fault in the South Yellow Sea is dominated by NEE in direction, and even by NE and NW in northern Jiangsu land and in the offshore...

Based on marine seismic profile interpretation and some continental-oceanic data, time-space distribution and general features of active faults in the Yellow and Bohai Seas and in the neighbouring area have been studied. Inherited NE active fault makes up dominant structure in the Bohai Sea and in its coast land.The North Yellow Sea has a similarity to the Bohai Sea, but active fault in the South Yellow Sea is dominated by NEE in direction, and even by NE and NW in northern Jiangsu land and in the offshore area. The available data have showed that horizontal movement of the faulting is larger than vertical one, and sedimentation rates, estimated according to sedi-ment thickness of Eogene, Neogene and Quaternary respectively, have indicated that structural intensity is nearly the same during these three periods. Thus it can. be said that horizontal movement and differential uplift and subsidence, reflected by strike-slip normal fault, are still in a very activ development in North China and in the Bohai Sea area.

本文初步讨论了区内活动断裂的时空展布及一般特征,NNE—NE向继承性活动断裂是渤海海域及沿海大陆的主导构造,北黄海断裂活动与渤海相似,南黄海则以NEE向为主,苏北陆地及其近海兼有NNE—NE和NW向。资料表明,断裂的水平运动量大于垂直运动量,从各自的沉积厚度所估算的沉积速率说明早、晚第三纪和第四纪的构造强度是很近似的,因而华北和渤海区由走滑正断层反映的水平运动和差异升降运动仍处于十分活跃的发展阶段。

The characteristic analysis of stack velocity spectrum applied to seismic interpretation, especially to predicting oil and gas deposits is introduced in this paper. Stack velocity spectrum supply not only information of velocity but also information of oil and gas, as well as structure acording to concentrate, dirergence of stack velocity spetrum energy, which is combined with seismic profile interpretation for suppling more information of gelogy. Finally, this method is applied to three different...

The characteristic analysis of stack velocity spectrum applied to seismic interpretation, especially to predicting oil and gas deposits is introduced in this paper. Stack velocity spectrum supply not only information of velocity but also information of oil and gas, as well as structure acording to concentrate, dirergence of stack velocity spetrum energy, which is combined with seismic profile interpretation for suppling more information of gelogy. Finally, this method is applied to three different structure oilfield of Tuba Basin for predicting oil and gas deposits, the results of predicting oil and gas deposits fit in practical data of the oilfield.

本文主要介绍了速度谱特征分析在地震资料解释中的应用,尤其是在含油气储层预测方面的应用。叠加速度谱不仅可以提供速度信息.而且能量团的聚集、发散特征也可以提供油气、构造方面的信息,其接合地震剖面的解释可以提供更多的地质信息。最后,本文以吐哈盆地为例,用速度谱特征分析方法对三个不同构造背景的油田进行含油气储层预测,其结果与油田的实际资料是相吻合的。

The Okinawa Trough which lies at the southastem margin of the East China Sea,is an astive back-are rift and a part of the Ryukyu T-A-BA system. Many geological and geophysical studies have shown that the Okinawa Trough is associated with an extremely high heat flow,strong submarine hydrothermal activities,frequent earthquaks,strong volcanic eruptions, well-developed central grabens and active faults,and a thin crust and lithosphere. Up to now, the crustal nature of the Trough is still a key debating...

The Okinawa Trough which lies at the southastem margin of the East China Sea,is an astive back-are rift and a part of the Ryukyu T-A-BA system. Many geological and geophysical studies have shown that the Okinawa Trough is associated with an extremely high heat flow,strong submarine hydrothermal activities,frequent earthquaks,strong volcanic eruptions, well-developed central grabens and active faults,and a thin crust and lithosphere. Up to now, the crustal nature of the Trough is still a key debating question.Based on the new geological and geophysical data collected since 1990,includ ing, single and multiple channel seismic reflections, ocean bottom seismometer (OBS) refractions, gravity and geomagnetic measurements,water depth sounding,submarine sampling and sea bottom dragging,the authors have undraken analyses of the crustal structure of the Okinawa Trough. The conclusions obtained in this study are listed below.1. Except the Andaman Sea with a complex oblique opening,the Okinawa Trough is the ouly example in the world of an active marginal back-arc rift opening along a continental boundary; it is formed by continental crustal extension,at a special high evoluting stage of a back-are rift,near the end of a rifting period and the beginning of a spread. Hence the Okinawa Trough is tectonicly a modern active rift valley.2. Analyses of igneous rock distribution patterns,sediment thickness and crustal structures,show that there is no oceanic crust in the central graben of the Trough and the Okinawa Trough has not begun to "spread" till now. The crust of the Trough is still continental in character because of the continental extension.3. Based on an seismic profile interpretation,the K-Ar dating for igneous rock sampes and heat flow calculations,as a submarine "Trough",the Okinawa Trough was formed 6 Ma B. P.; however,as a back-arc rift 4. The Okinawa Trough is a typical astive zone in the marginal area of the westem Pacific. The study on its crust nature and tectonic astivity is of great significance for many key questions about continental marginal tectonics such as back-arc rifting processes,influence from the subducted slab,mechanisms of the back-arc hydrothermal ctivity,mantle-crust interaction in the astive back-arc basin,relationships between the volcanic activity and back-arc rifting, differences in crustal fluid ectivities between mid-ocean ridges and back-arc basins,the tectonic evolution and geodynamics of active back are rifts. Therefore, it is required to carry out an ODP driling more accurate and more detailed geological and geophysical investigations for the Okinawa Trough.

根据1990年以来对冲绳海槽地质地球物理调查的最新实测资料,包括多道和单道反射地震、海底地震仪折射地震、重磁测量、水深测量、海底岩石拖网,结合国内外学者对冲绳海槽的调查研究成果,对冲绳海槽地壳结构进行了探讨,得出如下初步结论:(1)冲绳海槽是一个典型的发育在大陆地壳边缘、由陆壳张裂而成、处于裂谷作用最高演化阶段、洋壳即将产生、海底扩张即将出现的弧后活动裂谷。(2)根据火成岩发育、沉积层分布和地壳结构分析,冲绳海槽尚缺少已经开始“扩张”的证据,还不能确定海槽中央已经发育了大洋地壳。冲绳海槽目前仍属于拉薄的大陆地壳。(3)冲绳海槽作为一个浅海槽状地貌单元,形成于距今6Ma。作为一个弧后裂谷,自距今2Ma以来开始强烈的张裂活动。海槽中央张裂地堑(槽中槽)距今2Ma以来开始形成并逐渐发展。中央张裂地堑内的火成岩年龄不大于1Ma。因此,冲绳海槽是一个年青的、正在活动的弧后裂谷盆地。

 
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