查询词典 tectonic

New data of structural styles and geochronometry in the Dulong-Song Chay metamorphic dome indicate at least two epoches of major extensional tectonics: the D, deformation of the rising and exhumation of the dome occurred at 237-228 Ma; and the D2 deformation overprinted and re-deformed on the dome at 86-78 Ma. Of them, the D, deformation shows a consistent forming time, extensional direction and tectonic regime amongst the Dulong-Song Chay dome, South China block and the north margin of the South China Sea basin.

对位于华南地块西南缘的都龙－Song Chay变质穹隆体的研究表明，在中生代至新生代时期，至少经历了2期重要的伸展构造：D1期(237~228 Ma)穹隆的隆升与表露阶段，代表了印支期造山作用前的伸展构造；D2期(86~78 Ma)叠加和改造阶段，并有可能始于176~146 Ma，致使穹隆进一步隆升和表露。D2期构造在发育时间、伸展方向及变形方式等上既与华南地块同时期区域伸展构造特征相一致，也与南海盆地北缘早期扩张特征相一致。

However, it is unsubstantial for the investigation on chorology and geochemisty, and dissimilar for the research on petrogenesis and tectonic setting. Therefore, based on the isotopic chorology, petrochemistry, geochemisty and Sr, Nd, Pb isotope, the Ph.

山东地区中生代基性脉岩特别发育，这些幔源基性岩脉充填张性裂隙，是大陆地壳拉张的标志；另外，山东地区也存在大量拉张背景下的燕山期火山岩和碱性岩。

Coal measures in Hegang mining area have been transformed by multiple tectonic movements and geological situation is complicated.

摘要： 鹤岗矿区煤系曾遭受多次构造运动的改造，地质情况复杂。

New technique and new method in GPR is introduced into coal mine to detecting the tectonic in coal seam.

首先对本文要研究的探地雷达原理、关键技术参数、电磁波参数与煤岩的关系进行了总结和分析。

Meanwhile, degree of coalification is promoted because of tectonic rebuilding in some locations..Mechanical property of rock is tested. Stress field is simulated in Libi gorge anticline.

高陡背斜煤层气富集的构造控气机制，进行了煤岩的力学性质实验，计算了沥鼻峡背斜盐井矿区的应力场，研究了应力分布与煤层气富集的关系。

According to the recent understandings of the tectonic setting of Xiao Qinling area,it is put forward that the geological model of volcanic thermal dome gold being formed in the metamorphic complex cone under A-type subduction after studying of geology and minerals in this area.

根据对小秦岭地区大地构造位置的最新认识，在对一系列野外地质矿产信息综合研究的基础上，提出"板内 A型俯冲机制下变质核杂岩内岩浆热穹窿金成矿地质模型"。

Our results indicate that not only the poloidal convection patterns in uppermost mantle have good correlations to surface tectonic motion, but also the toroidal ones reveal important information of their horizontal motion and rotation for the first time. There is a SEE_NWW strong convection zone close to the equator in toroidal convection patterns, which probably correlates with the large_scale shear zone near the equator and is the deep dynamic background of strong earthquake occurrence in this zone. The opposite rotating large_scale convection rolls in the Southern and Northern hemispheres suggest that maybe there is differential rotation between them.

研究结果表明，不但地幔浅部的极型场对流图像显示出了与大地构造运动的相关性并揭示了其深部动力学过程，更重要的是，地幔浅部的环型场对流图像首次为我们认识和理解板块构造的水平与旋转运动提供了重要的信息：环型场速度剖面中在赤道附近存在一条大致南东东—北西西向的强对流条带，可能与环赤道附近大型剪切带的形成相关，进而表明可能是该带强震发生的深部动力学背景；在南北半球存在的旋转方向相反的对流环表明它们整体上可能存在差异旋转。

The contrast of age statistical results against the figure showing the changes in rate and angle of convergence during India plate has been colliding against Eurasian plate since late Mesozoic and the diagram consisting of global deep-seaδ18O andδ13C records is done, for the purpose of revealing climatic and tectonic information on rock cooling and referring the relationship between thermal evolutional history and climate and tectonics.

东喜马拉雅构造结是气候与构造相互作用的典型地区，本文尝试使用单颗粒高精度单次全熔40Ar/39Ar法对采自雅鲁藏布江大峡谷下游墨脱县城以南约50 km处地东河段的细粒现代河沙进行年代学测试，建立东喜马拉雅构造结的热史演化序列，并通过与代表全球气候变化的18O、13C浓度变化曲线和印度大陆向北运动的速度、角度变化曲线的对比，揭示气候、构造因素与东喜马拉雅构造结热史演化的耦合，推定热史演化与气候、构造过程的关系。

The cumulative earthquake frequency curve of the Jiashi swarm shows that the high tectonic stress was maintained in the swarm area during active period between Jan.

6巨大的地形应力影响，使伽师震源区构造应力场与毗邻构造单元的构造应力场存在较大差异。

The maps at short periods reveal an evident lateral heterogeneity in the curst of North-China, quite well in agreement with known geological and tectonic features.

四、将研究区域划分为0.25°×0.25°的网格，用面波层析成像方法，反演得到了4s-40s周期的群速度分布图像。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。