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deep faulting
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  深大断裂
     In rift basins of East China occurs mantle source gas pool with 3He/4He ratio of 2.7~6.4Ra, and such mantle gases migration and accumulation are related to the regional deep faulting.
     我国东部裂谷盆地中存在3He/4He比值为2.7~6.4Ra的幔源气藏,幔源气的运移和聚集成藏与区域深大断裂有关。
短句来源
     Particularly, the deep faulting to near-south-north trend is characterized by tensional and strike-slip natures, being as "earthquake active zone" under the basin and shaping a "highway" of the hydrocarbon and deep thermal material migration from south to north. The cap rocks of the basin in these belts could be all as fracture-developed zones.
     这些油气富集带的出现与分布,是与盆地基底存在着具有网格状深大断裂带紧密相连的,特别是近南北向的深大断裂具有拉张和走滑性质,是盆地下“地震活动带”,构成了油气和深部热物质由南向北运移的“高速公路”,盆地盖层在这些地带也正是断裂发育带。
短句来源
  “deep faulting”译为未确定词的双语例句
     THE DEEP FAULTING AND SEISMICITY IN XINJIANG
     新疆深断裂与地震活动
短句来源
     Therefore, to find out and substantially study the microscopic structural characteristic caused by high speed deformation among fault substance along deep faulting belt, i.e. the micro-indications and mineral phase composition of paleo-earthquakes, in such way, it may determine paleo-seismic events and study the mechanism of rock deformation (fracture) during paleo-earthquake occurrence.
     因此,在深蚀断裂带上,仔细地寻找和研究断层物质中快速变形引起的显微构造特征——古地震的微观标志和矿物相组合,就有可能确定古地震事件并探讨古地震过程中岩石变形(破裂)的机制。
短句来源
     In this paper the crustal magnetic structure and deep faulting structure were inversed by using aeromagnetic date obtained in Jiangsu, Shanghai, Zhejiang, Jiangxi, Fujian, Guangdong and Hainan Provinces and city as well as in part sea waters of the East China Sea and South China Sea (total area: 1441600km2).
     本文通过对江苏、上海、浙江、福建、江西、广东、海南等地区及东海,南海部分海域(总面积1441600km~2)的航磁资料反演得到的地壳磁结构及深部构造,找出了该研究区域内的中、强震的深部构造标志。
短句来源
     (2)The deep geological processes such as the tilting and subsiding of Moho discontinuity, large-scaled deepmagmatism and deep faulting are main controlling factors for uranium metallogenesis;
     (2)深部地质作用如莫霍面的起伏、深部大规模的岩浆活动和深断裂作用是铀成矿的重要控制因素;
短句来源
     This study shows that the zones with higher geotemperature gradient in Bohai Sea are in accordance with crust thinning,lithosphere stretching and deep faulting belts.
     研究结果表明 ,渤海盆地高地温梯度带对应于地壳减薄带、岩石圈伸展带和深部断裂带。
短句来源
更多       
  相似匹配句对
     THE DEEP FAULTING AND SEISMICITY IN XINJIANG
     新疆深断裂与地震活动
短句来源
     A NEW MECHANISM OF DEEP-FOCUS EARTHQUAKES:ANTICRACK FAULTING
     深源地震机理的新认识──反向裂隙断层作用
短句来源
     Deep Autumn
     秋深
短句来源
     On Deep Ecology
     深层生态学初析
短句来源
     The Inhomogencity of Faulting in Holocence
     全新世断层活动的不均匀性
短句来源
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  deep faulting
The deep faulting of the lithosphere and decompression-induced magma generation simultaneous with mantle heating at that time could be favorable for the derivation of mantle basite magmas.
      
The large numbers of mL ! 3 earthquakes suggest a zone of deep faulting at Kilauea.
      


A large amount of laboratory experiments and field observations indentify that the deformation of nigh strain rate left a special microscopic structural traces on mineral rock. A shallow-focus earthquake occurred at a certain depth within the earth crust is just a kind of deforming (fracturing) process with high speed, and this deformation with high rate can cause a special microscopic structural formation on the rocks in earthquake source and its vicinity. Therefore, to find out and substantially study the...

A large amount of laboratory experiments and field observations indentify that the deformation of nigh strain rate left a special microscopic structural traces on mineral rock. A shallow-focus earthquake occurred at a certain depth within the earth crust is just a kind of deforming (fracturing) process with high speed, and this deformation with high rate can cause a special microscopic structural formation on the rocks in earthquake source and its vicinity. Therefore, to find out and substantially study the microscopic structural characteristic caused by high speed deformation among fault substance along deep faulting belt, i.e. the micro-indications and mineral phase composition of paleo-earthquakes, in such way, it may determine paleo-seismic events and study the mechanism of rock deformation (fracture) during paleo-earthquake occurrence. Although this research is still inits initial stage, it is possibly a new promising methodology for the studies of paleo-earthquakes.

大量的实验研究和野外观察证实,高应变速率的变形作用在矿物岩石中留下了特殊的显微构造特征。在地壳的某一深度上发生的浅源地震就是一种快速的变形(破裂)过程,这种快速变形在震源及其邻近的岩石中会导致特殊的显微构造的形成。因此,在深蚀断裂带上,仔细地寻找和研究断层物质中快速变形引起的显微构造特征——古地震的微观标志和矿物相组合,就有可能确定古地震事件并探讨古地震过程中岩石变形(破裂)的机制。尽管这一方面的研究还处于探索阶段,但很可能是颇有希望的古地震研究的新途径。

The general curstal configuration in Yunnan is characterized as a tongue shape protruding southeastward, and Moho relief underneath is basically featuring one uplift and two depressions between the front and back of the tongue. The obtained result from DSS in general is consistent with the crustal shape proved by the anomalous gravity inversion, suggesting Dukou and Chuxiong upper mantle uplifts. The result from DSS indicates that the lateral variation of crustal structure in Yunnan is very obvious, making the...

The general curstal configuration in Yunnan is characterized as a tongue shape protruding southeastward, and Moho relief underneath is basically featuring one uplift and two depressions between the front and back of the tongue. The obtained result from DSS in general is consistent with the crustal shape proved by the anomalous gravity inversion, suggesting Dukou and Chuxiong upper mantle uplifts. The result from DSS indicates that the lateral variation of crustal structure in Yunnan is very obvious, making the Red River fault belt as a main boundary. South of the Red River fault belt, the crustal structure is featuring approximately a two-layered velocity model as the dominent factor, and Moho surface deepens from south to north and the crust thickens from 37-40km. North of the Red River fault belt, the crust is a three-layered velocity model, and Moho surface is shallower in the southeast and deeper in the northwest and the crust thickens from 43 to 47km or more.In addition, some evidences for deep faulting are obtained from DSS along those fault belts of Xiaojiang, Nujiang, LancangJiang, Yuanmou, Luzhijiang and QuJiang. In Longling seismic area and at Pupeng, Nanhua, deep faulting with remarkable sclae is also obtained.

云南地壳轮廓呈向东南突出之舌形,在前舌与后舌之间,莫霍面起伏基本上呈一隆两凹状。地震测深结果与重力异常反演地壳轮廓大体一致,探测到渡口楚雄幔隆等上地幔起伏。测深结果表明,云南地壳结构横向变化显著,主要分界在红河断裂带。红河带以南,地壳结构近似于以两层模式为主,莫霍面南浅北深,壳厚37—40公里。红河带以北为三层地壳结构,东南浅西北深,壳厚约 43—47公里或更大。还探测到小江、怒江、澜沧江以及元谋绿汁江断裂带,曲江等断裂均有深部显示。龙陵震区及南华普棚也探测到了规模可观的深部断裂。

The Haigou gold deposit islocated at the eastern terminal of the Huadian gold ore one in Tilin province, lying along the suture belt between the Old Mongolian oceanic plate and he North China paleoplate.The gold deposit consists of over forty gold-bearing sulfide quartz eins which are distributed northeastward, 1600m in total length, 250m in width and more than 00m in downward extension.Wall rocks include monzonitic granite, diorite porphyrite and etamorphic rocks of middle proterozoic Sehohe Group, whose gold...

The Haigou gold deposit islocated at the eastern terminal of the Huadian gold ore one in Tilin province, lying along the suture belt between the Old Mongolian oceanic plate and he North China paleoplate.The gold deposit consists of over forty gold-bearing sulfide quartz eins which are distributed northeastward, 1600m in total length, 250m in width and more than 00m in downward extension.Wall rocks include monzonitic granite, diorite porphyrite and etamorphic rocks of middle proterozoic Sehohe Group, whose gold abundance varies in the range . 42—30 ppb. Wall rocks on both sides of the gold-bearing quartz vein have suffered such lterations as silicification, sericitization and carbonatization.The following are isotope eochemical characteristics of the gold deposit.1. Sulfur in both ore veins and wall rocks is ich in ~(32)S, and average δ~(34)S values of sulfide are —7.9‰ and —4.1‰ respectively, xhibiting no obvious temporal-spatial variation. δ~(34)S_(∑S) of ore fluids is —8.8‰. It is onsidered that sulfur might have been derived from volcano-sedimentary-metamorphic rocks.. δD nd δ~(18)O values of Mesozoic meteoric water in this area are —149‰ and —20‰ respectively. uring he ore-forming process, oxygen isotope composition of water and rocks varied considerably, and ~(18)O value of the fluids tended to increase and drift. At the principal ore-forming stage, δD values of he luids were —126——100‰, δ~(18)O values 2—6‰, and δ~(13)C_(CO_2) values —7.8——13.2‰. Ore luids were mainly derived from magmatic source—hot meteoric water, Carbon came from deep arbon and organic Carbon of strata.3. Lead in ores and wall rocks is old lead from two-stage volution, with t_1 being 2398Ma. Model ages of lead in single samples are 1000—1200Ma, with μ alues nearly 9.73. K/Ar closed age of ores is 143Ma, whereas Rb/Sr isochron age of rock body (wall rock) s 181 Ma.Isotope geochemical studies show that greenschist facies metamorphic rock of Middle Proterozoic eluohe Group served as the source bed of gold, monzonitic granite was formed by remelting of the source ed, and meteoric water was the initial source of ore fluids. It is thus inferred that during the early stage of anshanian orogeny, due to the continuous expansion of Mongolian oceanic plate and its subduction owards he bottom of North China plate, strata in this area were intensely folded in company with deep faulting nd agmatic-hydrothermal activity, and this led to the formation of the remeltihg magmatic source—hot eteoric water type gold deposit. The rock-forming and ore-forming process might be divided nto hree epochs consisting of six stages, and the native gold-sulfides-quartz assemblage marks the rincipal oreforming stage of gold during which the temperature was in the range of 250—350℃, e fluids varied from acid to weakly acid, and metallogenic environment was of reduction type.

同位素地球化学研究表明,中元古界色洛河群绿片岩相变质岩系是海沟金矿床的重要矿源层,它经历了多次构造、变质和混合岩化作用,特别是在燕山早期强烈构造活动中发生了局部深熔作用,形成了海沟二长花岗岩。受热大气降水的淋滤作用,使岩体内金元素活化、迁移和富集,以含金硫化物石英脉群形式沿NE向裂隙带充填于海沟二长花岗岩中,形成了大型沉积变质、深熔岩浆岩源大气降水热液金矿床。

 
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