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克拉通边缘
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  craton margin
     SEQUENCE ANALYSIS ON CRATON MARGIN CARBONATE:AN EXAMPLE FROM THE EARLY PALAEOZOIC SEDIMENTS IN EASTERNAL NORTH CHINA PLATE
     克拉通边缘盆地碳酸盐层序地层学分析——以华北板块东部早古生代沉积为例
短句来源
     This paper for the first time made the sequence stratigraphic analysis on craton margin carbonate deposited in early Palaeozoic on the eastern North China plate. It has been recognized that the aggredational and lateral accretional carbonate sequence of Cambrian - early Ordovician were controlled by eustatic movement, representing a transgressive - regressive cycle, a superpariod (2nd order cycle, P. R.,Vail, 1978), synchronous to the global eustasy.
     首次对华北板块东部早古生代克拉通边缘盆地的碳酸盐地层进行层序地层学剖析,认为从寒武纪至早奥陶世加积、侧积的碳酸盐层序主要受海平面升降所制约,为历时约110 Ma的一个海进—海退旋回,是与全球海平面升降同步的超周期(二级旋回,P.R.Vail,1978)。
短句来源
  “克拉通边缘”译为未确定词的双语例句
     intracontinental faulted basin and rift, aulacogen, and passive continental margin.
     张裂盆地可分为陆内断陷和裂谷、克拉通边缘裂陷槽和被动大陆边缘。
短句来源
     -Middle Jurassic depression on a cratonic margin,Cretaceous forearc basin and Latest Cretaceous-Cenozoic backarc basin.
     —中侏罗世克拉通边缘坳陷盆地、白垩纪弧前盆地和晚白垩世末—新生代弧后裂陷盆地等3个构造演化阶段。
短句来源
     The study area underwent 6 stages of development, from basement, rift-depression basin at margins of craton, intra-craton compressional basin, intra-craton depression basin, foreland basin to unified inland basin.
     研究区经历了基底形成、克拉通边缘裂陷盆地、克拉通内挤压绕曲盆地、克拉通内坳陷盆地、前陆盆地及统一内陆盆地等6个发展演化阶段.
短句来源
     1. Datong Late Paleozoic coal-bearing basin is a Cratonic fringe geological depression basin, the basement has two main components: one is a old crystallized basement formed before 1800Ma of lvling period and the another is the lower Paleozoic Cambrian-Ordovician.
     1、大同晚古生代含煤盆地为一克拉通边缘拗陷盆地,基底主要有两部分组成:一部分是1800Ma吕梁期前的古老结晶基底,另一部分是下古生界寒武-奥陶系,盆地形成于华北和西伯利亚板块发生陆-陆碰撞的区域构造背景,形成时代为早石炭世末至中石炭初。
短句来源
     The sedimentary basins in China are fallen into four tectonic categories: cratonic, extentional, contractional and transform. They were temporally influenced by the formation and break-up of the supercontinent and spatially subjected to Tethyan tectonic basins may be inverted, reactivated and reformed.
     中国沉积盆地可以划分为克拉通盆地、裂陷盆地、压陷盆地和走滑盆地4大类.这些盆地在时间上受联合大陆形成和裂解两大构造阶段所影响,在空间上受特提斯构造域和太平洋构造域两大构造体系所制约.中生代和新生代盆地形成与古生代克拉通盆地和克拉通边缘盆地之间存在着反转性、再生性和新生性
短句来源
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  相似匹配句对
     Edge
     边缘
短句来源
     DYNAMIC SEQUENCE STRATIGRAPHY OF PERIPHERAL FORELAND BASINS
     克拉通边缘前陆盆地动力层序地层学
短句来源
     Experiencing the Edge
     感受边缘
短句来源
     In China, the SOD are distributed mainly on the borders of cratons or the craton edges.
     我国超大型矿床主要分布于克拉通边缘 ;
短句来源
     Broken “Western China Craton”.
     被肢解的“西域克拉通
短句来源
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  craton margin
Hydrothermal and magmatic events occurred locally where extension-related Precambrian basement uplifting took place along the craton margin.
      
Contrasting lower crustal thermal histories are revealed between intracratonic and craton margin regions.
      
The Mesoproterozoic alkaline magmatism at Khariar marks the initiation of a NE-SW rift which formed several craton margin basins and opened an ocean towards the south.
      
A K-Ar age of 1,330±53?Ma from glauconites in sandstone suggests that the NW-SE trending Godavari-Pranhita graben formed at approximately the same time as the rift at the craton margin.
      
Accretion of terranes to one another or to a craton margin also defines a major change in the tectonic evolution of terranes and craton margins.
      
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Extensional basins in platform regions of China can be divided into three types; intracontinental faulted basin and rift, aulacogen, and passive continental margin. Intra continental faulted basin and rift are predominated by nonmarine deposits, with some exceptions of marine transgression in paralic basins. During the processes of rifting, basalt-red bed-evaporite association or basalt-red bed-coal bearing series association→deep water lacustrine association→red bed association could be formed successively....

Extensional basins in platform regions of China can be divided into three types; intracontinental faulted basin and rift, aulacogen, and passive continental margin. Intra continental faulted basin and rift are predominated by nonmarine deposits, with some exceptions of marine transgression in paralic basins. During the processes of rifting, basalt-red bed-evaporite association or basalt-red bed-coal bearing series association→deep water lacustrine association→red bed association could be formed successively. Rock associations in medium to small faulted basins are similar but mostly incomplete, also with differences in volcanic rock types. The

本文着重讨论中国地台区某些张裂盆地的沉积与演化特征。张裂盆地可分为陆内断陷和裂谷、克拉通边缘裂陷槽和被动大陆边缘。裂谷在发展过程中依次形成玄武岩-红层-蒸发盐组合或玄武岩-红层-煤系组合→深湖相组合→红层组合。中小型断陷的岩石组合类似但多不完整。豫陕裂陷槽的岩石组合为下部硅碎屑岩组合,以钾玄岩系为主体的火山岩组合,上部硅碎屑岩-碳酸盐组合,以及较深水相泥硅质岩组合。地处被动大陆边缘的扬子地台南部早寒武世海是以波浪作用为主的陆架,其东南边缘的石煤可能是远洋、半远洋沉积。本文还扼要讨论了张裂盆地在控制某些矿产资源的形成与分布方面的一些问题。

Geotectonic development in the sea areas of China is vitally interrelated to that in tbe eastern part of China and the Eurasian plate. Having studied the geotectonics of the sea areas of China and some areas nearby, we think that, in the structural events which occurred since early Mesozoic, the tectonic activities in the eastern part of China were dorainated by violently rifting and magmatic activities and thus down-faulted basins of various types (began with down-fauiting and ended with depression) were formed....

Geotectonic development in the sea areas of China is vitally interrelated to that in tbe eastern part of China and the Eurasian plate. Having studied the geotectonics of the sea areas of China and some areas nearby, we think that, in the structural events which occurred since early Mesozoic, the tectonic activities in the eastern part of China were dorainated by violently rifting and magmatic activities and thus down-faulted basins of various types (began with down-fauiting and ended with depression) were formed.

本文从盆地形成时代、边界条件、盆地演化和热力学历史,将我国大陆附近海域中的十七个主要沉积盆地,划分为四种类型;克拉通边缘断陷盆地;大陆边缘断陷盆地;弧后盆地和小型洋壳盆地.通过对上述各类盆地的分析,认为这些含油气盆地具有六个地质特点:1.盆地绕陆分布,多数处于大陆架上.2.从地壳厚度、基底性质、盆地发展和构造单元上分析,海陆区域构造性质十分近似.3.盆地面积大小不一,海、陆相沉积均有,大部分盆地以新生代沉积为主.4.盆地处于现代构造活动带上,这对盆地发育、热力场条件形成、生油与构造配合和大量圈闭的产生,十分有利.5.具有不同时代的盆地纵向上迭置,和盆地不同发育阶段即几个断陷—拗陷上下迭置的复式盆地特点,使油气来源具多源性.6.由于沉积体积大,多种沉积相带交替出现,生油条件好,储层发育,圈闭多并成带分布,油气藏类型多等,认为中国邻近海域含油气盆地具有优越的石油地质条件,对寻找大、中型油气田十分有利.

The Presinian basement on the southwest margin of the Yangtze paraplatform consists of three metamorphic rock series of different ages. Being products of different tectonic events and environments, they differ markedly in original rock sequences, metamorphism, tectonic style and characteristics of granitoids and deposits.The late Archean Kangdian craton mainly comprises the Kangding and Julin Groups with a metamorphic age of nearly 2500 Ma. They are supracrustal rocks dominated by mafic volcanics enclosed in...

The Presinian basement on the southwest margin of the Yangtze paraplatform consists of three metamorphic rock series of different ages. Being products of different tectonic events and environments, they differ markedly in original rock sequences, metamorphism, tectonic style and characteristics of granitoids and deposits.The late Archean Kangdian craton mainly comprises the Kangding and Julin Groups with a metamorphic age of nearly 2500 Ma. They are supracrustal rocks dominated by mafic volcanics enclosed in trondhjemites. The craton is believed to represent a granite-greenstone terrane of Late Archean age. Economic deposits include graphite and kyanite deposits of metamorphic origin, muscovite deposits in pegmatites and gold quartz veins in gneissic granites, banded hornblende-magnetite mineralization, copper and zinc mineralizations related to felsic volcanics. Large V-Ti bearing magnetite deposits were also formed in the mafic-ultramafic stratiform intrusions emplaced on the margins of the craton during the middle Proterozoic. Copper and nickel deposits are found in several ultramafic intrusions.Extending north-south, the Proterozoic mobile belt mainly comprises the early Proterozoic Hekou and middle Proterozoic Huili and Kunyang Groups, and they are thought to be accumulations in a Proterozoic rift or aulacogen. During the early Proterozoic, the rift was characterized by intense volcanism and. presence of iron deposits of voclanic-magmatic type, iron-copper deposits of exhalative-sedimentary type. The Mid-late Proterozoic of the rift mainly witnessed sedimentary mineralization and formation of stratiform copper deposits of sedimentary type and of iron deposits of submarine sedimentary type in several horizons. In the wake of the emplacement of the Jinningian and Chengjiangian granites in the late Proterozoic, skarn tin and tin-iron deposits were formed.

运用近代变质地质学的观点,总结了扬子准地台西缘前震旦纪基底不同时代的变质岩系、形成的构造环境、演化历史与成矿作用。康滇克拉通代表晚太古代的花岗岩-绿岩地体,其中以变质成矿作用为主。元古代活动带代表克拉通分裂后出现的裂谷槽盆,其中以火山、沉积成矿作用为主,还有与花岗岩有关的热液成矿作用。于中元古代在克拉通边缘基性—超基性岩浆的活动,伴随岩浆成矿作用。因多期成矿作用,本区成为黑色与有色金属矿床的重要成矿区域。

 
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