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activated region
相关语句
  活化区
     GEOLOGICAL CHARACTERISTICS OF GRANITIC URANIUM DEPOSIT IN AN ACTIVATED REGION
     某活化区花岗岩型铀矿的主要地质特征
短句来源
     SOME CRUXES OF DYNAMICS STUDY ON ACTIVATED REGION
     关于活化区动力学研究的几个问题
短句来源
     In the Indosinian-Yanshanian activated region cycle, as a result of mantle activation,the syntexis series granitoids and related volcanic rocks of mantle plus crust mixed source have been formed, stretching along the east coast of China.
     印支、燕山期活化区(地洼)阶段,在地幔活化激发下,中国东部陆缘形成幔—壳混源(同熔)系列花岗岩和相应的火山岩;
短句来源
     Muping-Rushan gold metallogenic belt is located in the activated region of Jiaodong granite-greenstone terrain of eastern margin of North China Craton.
     牟乳金矿带位于华北克拉通东缘的胶北花岗岩-绿岩地体东部活化区
短句来源
     The Mouping-Rushan gold ore belt lies in the activated region on the eastern margin of the North China Craton.
     山东牟乳金矿带位于华北地台东缘活化区
短句来源
  “activated region”译为未确定词的双语例句
     The average ε_(Sr)~t values of the six plutons change from 0 to 120 and their source rocks are mostly a mixture of the mantle material and the crust one. This demonstrates that the mature continental crust is low in proportion in the crust column, which may be one of the most important characteristics of the Central-Asia type activated region in its crust chemical structure.
     模拟结果表明:六个岩体的ε_(Sr)~t值多介于0-120之间,源区岩石多为地幔物质与陆壳物质的混合源,地壳柱中成熟陆壳所占比例较少,反映了中亚型地洼区在地壳化学结构上的一个重要特征.
短句来源
     The activity of dihydrofolate reductase from chicken liver goes first through an activated region and then an inactivated as the conCentration of guanidine hydrochloride increases at 5,20 and 30℃.
     在5℃、20℃、30℃,鸡肝二氢叶酸还原酶的活力随盐酸孤浓度增加,先经历一个激活区,以后则为失活区。
短句来源
     P3 latency with prolonged and amplitude decreased markedly. ②Tomography in VD group showed that the activated region in parietal and central cortex reduced,greatly,without the evident activating of frontal and temporal cortex (especially left side).
     ②P3地形图显示VD病人顶中央区皮层激活范围明显减少 ,额区、颞区 (尤其左侧 )皮层激活不明显。
短句来源
     It is found that the length of activated region of optically pumped cavity THz laser is much shorter than the super radiant THz laser.
     计算了双纵模光泵超辐射式和腔式 THz激光器的能量交换过程 ;
短句来源
     The roles of activated region in mastication remain for further investigation.
     脑激活区在单侧咀嚼中的作用还有待进一步的探讨
短句来源
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  相似匹配句对
     SOME CRUXES OF DYNAMICS STUDY ON ACTIVATED REGION
     关于活化区动力学研究的几个问题
短句来源
     ON THE ACTIVATED TECTONISM AND URANIUM METALLOGENESIS IN THE ALTAI REGION
     阿尔泰地区活化构造与铀成矿作用
短句来源
     Function of Region
     区域函数
短句来源
     REGION INTERPOLATION
     区域插值
短句来源
     DON was activated by
     应用单克隆抗体12D1建立的DON间接竞争ELISA
短句来源
查询“activated region”译词为用户自定义的双语例句

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  activated region
The conduction behavior in low electric fields consists of thermally activated region dominated by the Schottky conduction and nonthermally activated region in which carrier transport is controlled by space-charge-limited currents.
      
In this activated region, Hall measurements also show activated behavior in the hole concentration where p ~ 1020 cm-3, indicating that Cr can also act as an acceptor similar to Mn.
      
Optimal structural superplasticity and the deformation of nanostructured materials in the thermally activated region are regarded as being caused by the same physical process.
      
The contribution of the focal brain activity to the NIRS signal is determined by not only the depth of the activated region from the head surface but also the depth of the activated region from the brain surface.
      
The sensitivity to the activated region in the white matter steeply decreases with an increase of the depth of the activated region because the spatial sensitivity profile is mainly confined to the grey matter.
      
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On the example of the SE diwa region in China, this paper suggests that the transition from active to quiet period in diwa development is a period of uranium mineralization.The author has calculated the ages of representative uranium ores in south China and adjacent areas. 86.7% uranium deposits were formed in the late Cretaceous to Early Tertiary. Uranium deposits of other ge ologic ages only have a sporadical distribution.Uranium deposits of the diwa stage are distributed along the circum Pacific belt,...

On the example of the SE diwa region in China, this paper suggests that the transition from active to quiet period in diwa development is a period of uranium mineralization.The author has calculated the ages of representative uranium ores in south China and adjacent areas. 86.7% uranium deposits were formed in the late Cretaceous to Early Tertiary. Uranium deposits of other ge ologic ages only have a sporadical distribution.Uranium deposits of the diwa stage are distributed along the circum Pacific belt, namely, southeast China, the southwest United States, Japan and Argentina. The regularities governing their space-time distri bution are of global significance.In terms of crustal evolution, neither extremely quiet nor excep tionally active stages are favourable for the concentration of uranium mineralization. At the culmination of tectono-magmatic activety, the action of hot water becomes so intense as to mobilize uranium. In exi sting platform regions, tectono-magmatic activity becomes weak, urani um mineralization suffers a restriction, uranium is in a disperse state, and uranium deposits are unlikely to be generated. Only during the transition from late Yanshanian to early Himalayan orogeny, i. e., during the transition from active to quiet period in diwa development, when source rocks and accumulation conditions exist, can uranium be redistri buted and concentrated.In space, uranium deposits of the diwa stage are located near the contact of an uplift with a depression and in late fracture zones within an uplifted area.Uranium deposits of the diwa stage have many modes of formation: hydrothermal transformation, leaching-deposition, and polygenetic compound. The latter is the most common metallogenetic type of activated regions.Based on practice, the author suggests the following metallogenetic processes: uranium sourcerock→failure of the uranium source rock due. to tectonic processes→mobilization of uranium under the action of cold and hot solutions→accumulation of uranium during the transition from active to quied period.

本文以我国东南地洼区为例,提出地洼阶段活跃与平静交替时期是铀的成矿期。 笔者对华南及其邻区部分代表性的铀矿石年龄作了统计。86.7%的铀矿床形成于晚白堊世——早第三纪,其它地质时代的铀矿则零星分布。 地洼期铀矿,主要沿环太平洋的我国东南部、美国西南部以及日本、阿根廷等地分布,它的时空分布规律性,具有很重要的全球意义。 就地壳演化看,极平静的时期或过于不平静的时期,都不利于铀矿化的集中。构造-岩浆活动最盛期,热水作用加强,铀活化被搬运。现存地台区,构造-岩浆活动不发育,成矿作用受到限制,成矿阶段铀处于分散状态,不易形成铀矿床。只有到了燕山晚期转向喜山早期,即地洼活跃与平静交替时期,具备有矿质来源有聚集的条件,才产生铀的再分配和富集。 在空间上,地洼期铀矿,多半位于隆起与凹陷相接合处附近和隆起带内较晚期的断裂带等等。 地洼期铀矿虽具有热液改造、淋积等多因复成形成方式,多因复成是活化区最常见的成矿类型。 笔者从实际出发,对其成矿过程简单归纳为:铀源岩→活化期铀源岩遭受构造改造而破裂变形→冷和热溶液的作用铀活化迁移→地洼活跃与平静交替时期铀的聚集。

According to the diwa (geodepression) theory, and also the concept about reflex activated regions of A. D. Shcheglov, this paper has made discussion for the most principal geological characteristics of activated regions (diwa regions) and certain reflex activated areas related to uranium mineralization in China. The main characteristics of uranium mineralization are: predominantly epigenetic-supergenetic, relatively low temperature, multiple stage of ore-forming and large time gap between...

According to the diwa (geodepression) theory, and also the concept about reflex activated regions of A. D. Shcheglov, this paper has made discussion for the most principal geological characteristics of activated regions (diwa regions) and certain reflex activated areas related to uranium mineralization in China. The main characteristics of uranium mineralization are: predominantly epigenetic-supergenetic, relatively low temperature, multiple stage of ore-forming and large time gap between the ages of mineralization and host rocks. They are closely related with certain regional development of continents or near-continents—the evolution of third tectonic elements of the earth's crust, i. e, the development of diwa or activation of platform. Therefore, for specific region, the uranium mineralization of different types has a relatively narrow range in age. Uranium is sensitive to the tectonic movement. The ore-forming stage is correlated with the periods of most strong activation, the youngest of whith is often the most important ore, according to the sequ ences and intensity. However, the age of mineralization is usually not in coincidence with the period of violent activation. but in coincidence with middle-late periods of activity. During the period of time, the earth's ernst was in tension-expanding state and in the transition from active to stable state, for example, to the south-east of the diwa region of China the Cretaceous-Tertiary time is characterized by the development of neutral to basic veins and red basins and it is one of the important oreforming periods. The reflex activated areas of North-Western China is the most important uraniferious region during paleozoic time.

本文依地洼学说,同时吸取A.D.谢格洛夫关于广义活化区中的“反射活化区”概念,对我国最主要的与铀矿有关的地洼区(活化区),以及某些反射活化地区的地质特征作了讨论。铀成矿的主要特征是浅成、后生为主,温度不高,多年龄成矿,成矿期与赋矿围岩普遍存在较大的时差。这一特征往往与某一地区的大陆或近陆环境的发展,即地壳第三构造单元的演化——地洼区(自治活化区),以及某些反射活化地区的发育是密不可分的。因而,某一大区域内不同类型的铀矿床化时代往往相对的集中。铀元素对构造运动敏感。铀成矿与该区最强烈的活化期有关,特别是按顺序和强度对比上,最新一次的强活化期往往是铀成矿的重要时期。但是,具体矿化时间往往不是与最强活化期的激烈期一致,而大部分是与活化的中晚期吻合,这时地壳构造往往处于从活动期向稳定期过渡的拉张状态。例如中国东南地洼区白垩—第三纪的中基性脉岩及红盆相当发育,该时期也是重要的铀成矿期;西北古生代反射活化地区也是我国最主要的古生代铀成矿区。

The Yellow sea and the East China sea tectonically belong to the activated diwa region, which can be divided into the Yellow Sea diwa system, the East China Sea diwa system and the Okinawa marginal sea diwa system. The Yellow Sea diwa system developed from a platform setting and has undergone three stages: the initial-mobility period (end of T—K_2), the maximum-mobility period (K_2—E) and the residual-mobility period (N—Q). The East China Sea diwa system developed from the Paleozoic and Mesozoic geosynclinal...

The Yellow sea and the East China sea tectonically belong to the activated diwa region, which can be divided into the Yellow Sea diwa system, the East China Sea diwa system and the Okinawa marginal sea diwa system. The Yellow Sea diwa system developed from a platform setting and has undergone three stages: the initial-mobility period (end of T—K_2), the maximum-mobility period (K_2—E) and the residual-mobility period (N—Q). The East China Sea diwa system developed from the Paleozoic and Mesozoic geosynclinal folded zone, and has undergone three stages: the fault-depression of the initial-mobility period (K_2—E), the sag of the maximum-mobility period (Miocene) and the regional subsidence of the residual-mobility period (Plio- cene—Q). The Okinawa marginal sea diwa system is an activated region developed during Miocene time. There are obvious sea floor spreading and clear spreading graben valley in this region. The crust thins and belongs to transitional crust from continent to ocean. It is a young marginal sea diwa region with active tectonic movements, intense volcanic activities, obvious zone of volcanic rocks, comagmatic rocks and high thermal flow. The formation and development of the Yellow Sea diwa system was influenced mainly by thermal activity of deep mantle matter in East China. The East China Sea diwa system was controlled by the development of the southeast China diwa system in the early stage. Later it was influenced by the formation and development of the Ryukyu island arc. It was the result of composite effects of diwa and plate tectonics. The Okinawa marginal sea diwa region was mainly controlled by the subsiding movements of the Pacific plate. The marginal sea diwa region and the plate tectonics show coincidence in activation time, close spatial relatlonship, and similarity in mechanism of formation, both related to deep activities.

黄海、东海按其大地构造性质同属经构造活化形成的地洼区。可划分为黄海地洼系、东海地洼系及冲绳边缘海地洼系。黄海地洼系在地台背景上经历了三叠纪末—晚白垩世初动期,晚白垩世—早第三纪散烈期以及晚第三纪—第四纪余动期三个发展阶段。东海地洼系在古生代、中生代地槽褶皱带基础上直接转化进入地洼区,经历了晚白垩世—早第兰纪初动期的断陷,中新世激烈期的拗陷和上断世—第四纪余动期的区域沉降三个发展阶段。冲绳边缘海地洼系在中新世转化为活化区,具有明显的海底扩张作用,存在一条十分清晰的扩张地堑谷,地壳藏薄,属陆-洋之间的过渡性地壳,区内构造变动频繁,火山作用剧烈,火山岩有明显的分带性和岩浆的同源性,热流值高,为一年青的边缘海地洼区。黄海地洼系的形成和发展,主要受中国东部深部地幔热流活动的影响;东海地洼系早期受中国东南部地洼发展的控制,以后又受到琉球岛弧系形成和发展的影响,是地洼与板块复合作用的结果;冲绳边缘海地洼系则主要受太平洋板块俯冲下潜的构造活动所制约,表现了边缘海地洼区与板块构造在活化时间上的一致性,空间上的紧密连接性,成因机制上同属深部作用的同一性。

 
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