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三联点
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  triple junction
    THERMO-TECTONIC EFFECTS OF THE MANDOCINO TRIPLE JUNCTION MIGRATION
    圣安德烈斯断层门多西诺三联点迁移的构造热效应
短句来源
    RESEARCH PROGRESS ON THE TRIPLE JUNCTION OF OCEAN RIDGES
    洋脊三联点研究进展
短句来源
    Abstract The area lying to the Qinling Qilian orogenic belts, the southern margins of the Huabei platform and the northwestern margins of the Yangtze platform in the central part of the Chinese central region has been thought by the author that there might exist a recurrent three arm rift systems with two triple junction during the middle late proterozoic.
    地处中国大陆中部的秦、祁造山带、华北地台南缘及扬子地台西北缘区,中、晚元古宙可能存在一个由两个三联点构成的复合“三叉”裂谷系。
短句来源
    On the basis of comprehensive studies of various sorts of information such as tectonism,magmatism,metamorphism,ore_forming processes with their evolution in space and time,and geophysics,the formation and evolution(three accordion opening_closing events) of Altay large_superlarge deposits enriched region are considered to have been caused by the inception and evolution of Paleozoic Altay mantle plume_generated triple junction rifts.
    通过构造、岩浆、变质、成矿等地质作用及其时空演化规律的对比分析,以及物探重力、航磁及遥感信息的综合研究,认为古生代阿尔泰富蕴地幔热柱成因的三联点裂谷形成与演化———“手风琴式”开合,是阿尔泰大型- 超大型矿床富集区形成与演化的根本原因。
短句来源
    Ascending and lateral spreading of the mantle plume opened the triple junction rifts,resulted in the continental break_up,and generated Altay “ocean island_type” ophiolites,Altay_type granitoids,granitization,high_temperature and low_pressure metamorphic belts and chief large_superlarge deposits in the enriched region.
    地幔热柱热地幔物质大规模上涌和横向扩张,产生三联点裂谷系统,导致古大陆解体,形成阿尔泰“洋岛型”蛇绿岩、阿尔泰型花岗岩、花岗岩化、高温低压变质带和主要大型- 超大型矿床;
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  “三联点”译为未确定词的双语例句
    STUDY ON THE GEOLOGICAL VARIABLES OF TRIPLE POINT STRUCTURE
    三联点构造地质变量的研究
短句来源
    The Tectonic Feature of a Quasi trijunction in the Northeastern Corner of Qinghai Xizang Plateau
    青藏高原东北隅似三联点构造特征
短句来源
    PRELIMINARY STUDY ON QUASI TRI-JUNCTION IN NORTHEASTERN MARGIN OF QINGHAI-TIBET PLATEAU
    青藏高原东北缘似三联点构造的初步研究
短句来源
    We construct a distribution of the faults of all orders on a fault zone under the self-similar rule,simulating the zone with two associated triple-junctions.
    用两个相连的“三联点”模拟一条断裂带,在自相似规则下,构造了断裂带内各级断层的分布。
短句来源
    Experimental results suggest that 5 % - 8 % basaltic silicate melts mainly occurred at triple-junctions of olivine minerals which provided the prerequisite for extraction of chromium element from pyrolite their transport and preconcentration.
    实验结果表明:(1)在达到稳态熔融结构时,5%-8%的玄武质硅酸盐熔体主要赋存在矿物三联点之间,它为铬元素从地幔岩中萃取运移和预富集提供了先决条件;
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  triple junction
The data obtained show that, at low temperatures, the mobility of the system of grain boundaries with a triple junction is controlled by the mobility of the triple junction (the junction kinetics).
      
The Khalzanburgetdei deposit, 392 Ma in age, is situated in the Lake Zone of the Early Caledonides of the Central Asian Foldbelt at a branch of a triple junction of grabens.
      
According to this model, the rises originated at the triple junction.
      
The rift was conjugated with an ancient triple junction on the floor of the Ural-Turkistan paleocean.
      
The thermal activity and the triple junction nature control the activity in this area.
      
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This paper illustrates the 3-D finite element simulation method used to calculate the stress status in the upper part of the lithosphere. Characteristics of vertical stress is also reported in the paper.

本文较详细地介绍了上部岩石圈应力状态的三维有限元模拟的方法及得到的垂直应力特征。假设在地质时间尺度上,上部岩石圈0~40公里范围内(简称地壳)以线弹性变形为主。考虑到地壳三维不均一性对地壳应力场的影响,将地壳沿水平方向分成七种地质构造单元:大洋、大陆、高原、洋中脊、海沟、转换断层和三联点,沿径向方向分成二层,以重力(包括引力和离心惯性力)和温度变化作为载荷,采用三维有限单元法计算了地壳的应力场。计算结果表明:(1)地壳垂直应力以压应力占绝对优势,张应力只发生在洋中脊等异常带及其它特定地区,(2)在同一深度上,垂直应力随纬度的增大而线性增加,(3)在深25公里范围内,垂直应力随着深度的增加而增大,其值与海姆法则预测值吻合;(4)异常高的垂直应力梯度往往发生在异常带(板块边界)邻近地区。

The phlogopite-amphibole-pyroxenite mantle xenoliths, occurring in early Palaeozoic alkali mafic-ultramafic subvolcanic complex in Langao County on the northern margin of Yangtze Plate, are composed of clinopyroxene, amphibole, phlogopite, apatite and illmenite. The rocks of xenoliths usually have coarse-fine granulitic, slab-granulitic, triplepoints, cataclastic and kink band textures with strongly developed the metasomatic textures. The studies on the characteristics of rocks and of mineral compositions show...

The phlogopite-amphibole-pyroxenite mantle xenoliths, occurring in early Palaeozoic alkali mafic-ultramafic subvolcanic complex in Langao County on the northern margin of Yangtze Plate, are composed of clinopyroxene, amphibole, phlogopite, apatite and illmenite. The rocks of xenoliths usually have coarse-fine granulitic, slab-granulitic, triplepoints, cataclastic and kink band textures with strongly developed the metasomatic textures. The studies on the characteristics of rocks and of mineral compositions show that the phlogopite-amphibole-pyroxenite xenoliths are the product of mantle metasomatism and they possibly represent the source of alkali mafic-ultramafic subvolcanic complex in this area.

金云角闪辉石岩类捕虏体产于扬子板块北缘岚皋县境的早古生代碱性镁铁质-超镁铁质潜火山杂岩中,它们的典型矿物组成为单斜辉石、角闪石、金云母、磷灰石和钛铁矿。捕虏体岩石具粗-细粒等粒结构、板状等粒结构、三联点结构、碎裂结构和肯克带结构,交代结构十分发育。岩石产状、结构和矿物成分特征研究表明,金云角闪辉石岩类捕虏体是地幔交代作用产物,可能代表了该区碱性镁铁质-超镁铁质潜火山杂岩的源区岩石。

We construct a distribution of the faults of all orders on a fault zone under the self-similar rule,simulating the zone with two associated triple-junctions. The relation between the relative velocity of fault of every order on the zone and that of the plates which join each other on the zone is given on the basis of fractal concept. The data of the San Andreas fault are used to examine the validity of the relation. Using this model the quantitative difference of relative ,velocities obtained from the measuring...

We construct a distribution of the faults of all orders on a fault zone under the self-similar rule,simulating the zone with two associated triple-junctions. The relation between the relative velocity of fault of every order on the zone and that of the plates which join each other on the zone is given on the basis of fractal concept. The data of the San Andreas fault are used to examine the validity of the relation. Using this model the quantitative difference of relative ,velocities obtained from the measuring lines with different length can be explained.Both from the model simply and from the recognised relation between b value and the process of earthquake generation indirectly,we can conclude that the increase of the relative velocity of the major fault,under the condition of the steady relative movement of the plates, is midium-term precursory information of earthquake generation in the zone.

用两个相连的“三联点”模拟一条断裂带,在自相似规则下,构造了断裂带内各级断层的分布。引入分形维数,建立了断裂带内各级断层的相对运动速度与断裂带外围(板块或亚板块之间)相对运动速度之间的关系。用圣安德烈斯断裂带的运动数据初步验证了模型给出的断裂带内主断层相对运动速度与板块相对运动速度之间的关系的正确性。引入b值与分维数的关系,获得了由断层相对运动速度计算b值的方法,并得出结论:在板块相对运动速度稳定不变的条件下,主断层相对运动速度的显著增加是断裂带内孕育大地震的中期前兆信息。

 
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