地堑
- 名graben;rift valley
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[graben] 至少两个断层之间的地壳下降部分,一般长度宽度大得多
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汾渭地堑南段平均P轴直立,显示张性构造运动。
The vertical mean P axis in the southern part of Fen-Wei Graben indicates tensional tectonic movement there .
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铁法盆地属于晚中生代的NNE向半地堑煤盆地,北西西系是其主要的成盆期构造。
Tiefa basin is a late Mesozoic NNE-trending half graben coal-bearing basin , and the NWW structural system is the most important synbasinal structure .
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阜新盆地属于晚中生代NNE向地堑式煤盆地。
The Fuxin basin is a late Mesozoic NNE-trending graben coal-bearing basin .
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进入新生代后,形成了一个受NNE、NE向断层控制的半地堑式复合盆地,叠置于中生代盆地之上。
And it was a half-graben composite basin controlled by NNE and NE faults and superposed on the Mesozoic basin .
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中白垩世孙宗湾组的沉陷进一步向东侧移,形成了以F1断层为盆缘断层的半地堑;
The subsidence of Sunjiawan episode in Middle Cretaceous are further transferred eastward , and the half-graben defined by the fault F1 was formed .
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北海维京地堑Beryl湾中、晚侏罗世高分辨率沉降分析及其意义
Middle-Late Jurassic high-resolution Subsidence Analysis and its implication of the beryl embayment , Viking graben , North Sea
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后者受控于NW-SE向的拉伸应力场,形成了由NE向的断裂系统控制的半地堑式断陷盆地。
While the latter was controlled by NW-SE trending extensional tectonic stress field , forming half graben bounded by NE trending fault system .
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地堑的走向一般为N60°E左右,相对于冲绳海槽的走向更偏向于东西方向,偏角在15°左右。各段中央地堑是被NW向断裂错开的。
The striking direction of central graben is N60 ° E roughly , that is 15 ° more to the east comparing to the striking of the Okinawa Trough .
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那是在2000年3月份,我和我的朋友保罗(Paul)正在位于巴拿马-哥伦比亚边界的达连地堑(DariénGap)寻找稀有植物物种。两位哥伦比亚导游刚刚带我们进入一片林间空地。
It was March 2000 and I was with my friend Paul in the Dari é n Gap on the Panamanian-Colombian border looking for rare plant species . We had just entered a clearing with our two Colombian guides .
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超层序Ⅲ由F(T5-Tg)层序组构成,为盆地初始发育阶段扭张构造应力产生的地堑内形成的层序,分布局限,其体系域展布特征不明。
Supersequence ⅲ consists of sequence member F ( T_5-T_g ) distributed in grabens or half-grabens and formed by transtensional stress during the initial stage of the basin developing . Its spread area is smaller and its tract patterns are riot clear .
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东部地区速度变化以低速异常为主:①整个华北和东北地区,都呈现Pn低速异常,特别是华北盆地区、渤海湾和山西地堑低速异常非常明显,最小低于7.8km/s;
The whole North-China and most northeastern China have low velocities , especially in North-China basin , Bohai bay and Shanxi rift valley , the velocities are abnormally low . The lowest velocity reaches 7.8km/s .
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延涿地堑构造及其块体稳定性简析
A preliminary analysis on graben tectonics and block stability in yanqing-zhuolu
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渭河地堑盆地新构造运动及其基本特征
The neotectonic movement and its basic characteristics in the Weihe graben basin
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汾渭地堑与贝加尔裂谷系的比较构造分析
Comparative tectonic analysis of FEN-WEI graben and Baikal rift system
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隆起周缘具半地堑结构的凹陷是良好的油气聚集带之一。
The half-graben around the dome was better place for oil-gas migration .
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大多数地堑和半地堑是由深度近水平的拆离正断层控制的。
Extensional basin includes mainly graben and half-graben controlled by low detachment .
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山西地堑系现今构造应力场特征
Characteristics of present tectonic stress field of Shanxi Graben System
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银川地堑地震背景与近期地震活动趋势初步分析
Preliminary analysis on seismological background and recent seismicity trend of Yinchuan graben
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佳-伊地堑方正断陷的断裂控盆效应
Fault control effect at Fangzheng fault depression in Jia-yi graben
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山西地堑系的现代构造活动特征
The characteristic of recent tectonic activity in Shanxi Graben System
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伊通地堑边界断裂的性质与演化
The property and evolution of boundary faults of Yitong graben
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伊通地堑层序构成及层序地层格架样式
Constitution of sequence and pattern of sequence stratigraphic framework in Yitong graben
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地堑成为铀矿沉积的有利部位。
A graben creates a favourable setting for uranium deposition .
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半地堑反转构造的砂箱实验模拟
Sandbox experimental modeling on the inversion tectonics of half-graben
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河南汤阴地堑的地震地质特征与地震危险性
Seismotectonic characteristics of Tangyin graben , Henan province , and its earthquake risk
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地堑系断陷盆边缘海的成因与地壳伸展运动
Origin of graben system , down-faulted basin and marginal basin and crustal extension
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南海是由岩石圈断裂所围限的陆缘地堑断块。
South China Sea is a marginal graben block bounded by crustal faults .
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扇三角洲序列样式及其控制因素&以伊通地堑为例
Patterns of fan delta sequence and their controlled parameters
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中国东部山西地堑系的形成机制及构造地貌、地震探讨
The Morphotectonics , Seismicity and Origin of Shanxi Graben System , East China
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地堑形成的力学机制
On the mechanical mechanism of the formation of graben