地壳构造的
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Analyzing the relation between earthquake and structure distortion, main fault belt, crust, upper mantle, ground fracture, hotspring, geotherm, conductance frame, stress state in Guanzhong area is analyzed with earthquake mechanism, isoseismal line, crustal stress measure, fault displacement measure, and simulating test results. Earthquake formation mechanism is discussed with dynamics mechanism in Guanzhong base. There are 3 forces and a good medium environment, which are main reasons caused earthquake happened in Guanzhong area. The first force is NE and NEE level extrusion one which is parallel with long axis of Guanzhong base. The second one is level strain which is vertical with long axis of the base.
对地震与构造形变、主要断裂带、地壳及上地幔、地裂缝、温泉和地热、电性结构等关系进行了分析研究,通过震源机制解、地震等烈度线、地应力测量、断层位移测量及模拟试验等成果,分析了关中地区的地应力状态,从关中盆地的动力学机制,对该区的地震成因机制进行了探讨,认为与关中盆地长轴平行的NE和NEE向的水平挤压力、与盆地长轴方向垂直的水平张力及地幔上涌力三组力的作用,加之壳内高导层这一有利的介质环境,是导致关中地区地震发生的主要原因。
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Combine with the "Post-collisional" geochemical characteristics and the participation of mantle-derived composition;the emplacement events of granites maybe represent a transition from collision to orogenic collapse,and the magma maybe derives from the breakoff or delamination processes,then ascend to the upper crust along the strike-slip or transtensional fault.
结合花岗岩&后碰撞&的地球化学特征及岩浆形成过程中幔源物质、热的参与等认为这些花岗岩的形成应代表了造山带由碰撞造山向造山带垮塌过渡的早期阶段,岩浆的形成可能由一些深部过程如拆沉、板片断离等引起,并沿这一时期中浅部地壳的走滑或者走滑伸展构造侵位。
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Controlled main faults developed in the area,the studied results of microstructure phenomena reflected the area belong to a deformational environment of shallow crust low temperature,low confining pressure and high strain rate.
通过在野外露头采集定向标本并在室内进行切片研究,对区内主要发育的断裂进行控制,显微构造现象的研究结果反映出本区总体上属于地壳浅层次的低温、低围压和高应变速率的变形环境。
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Then on the basis of study results about regional geology, ophiolite,structure,and seismic depth-sounding in the Qinghai-Tibet plateau and its adjacent areas, this paper promotes a new model to interpret tectonics.This new model thinks that in this large area there was not simple B-type subduction which is accompanied with ocean-floor spreading at mid-ocean ridges to form ocean basins appearing as new oceans and new ocean plates,but intercontinental seas due to ocean-floor spreading,obduction of ophiolite tectonic slice as oceanic crust slabs and complex A-type subduction of continental lithosphere slabs.
而后又以青藏高原及邻区为例,根据区域地质、蛇绿岩和地质构造研究的成果,特别是地震测深研究的成果,详细地论证了本区不存在有大洋中脊扩张成为大洋盆地的新大洋和大洋板块简单的B型俯冲模式,但存在有海底扩张的陆间海和海洋地壳板片的仰冲以及大陆岩石圈板片复杂的A型俯冲新模式。
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They perform not only environmental factors for tectonic activity , but also an important active power they are the transferential carrier of matter and energy , in fact , they also function as the material body of many energy resources and mineral solutions .
这些流体夹杂在地壳之中,既是各种构造活动的环境因素,也是一种活跃的动力因子;既是物质和能量转移和传递的载体,也是多种能源和矿液的实体。
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The uneven stratum on the foreshore near the Lai Chi Chong pier is volcanic ash sedimentary rock. Displaying very distinctive foldings, faults and bedding structure, it is an ideal location for geological study.
荔枝庄码头附近一前滩凹凸不平的岩层,是经过地壳运动挤压而成的山火灰沉积岩,岩石的褶曲、断层及层理构造清晰展现,因此是极佳的地质考察地点。
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Study shows that the E-W-trending steep foliation belt is one of the major structural patterns, which is well-preserved in the complex. The large-scaled ETSFB is characterized by well-developed E-W-trending steep-dipping foliations and sub-vertical folds, suggesting pure shearing under the condition of crust contraction.
近年来的研究发现,近东西向陡倾叶理带是该区高级变质杂岩中保存完好的一种主要构造形式,规模巨大,以密集的近东西向陡倾叶理和直立褶皱的发育为特征,反映了地壳挤压收缩环境下的纯剪切变形,其上叠加了深构相右行走滑剪切带。
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Employing modern deep drilling techniques, Chinese Continental Scientific Drilling Project is to drill a 5000 meter deep hole in the eastern part of Dabie-Sulu ultra-high pressure metamorphic belt that has global geoscientific significance.
中国大陆科学钻探工程(Chinese Continental Scientific Drilling Program,CCSD)是利用现代深部钻探高新技术,在具有全球地学意义的大别-苏鲁超高压变质带实施中国第一口5000米科学深钻,利用从钻孔中获取的岩心及液、气态样品及原位测量数据,进行多学科综合研究,揭示大陆造山带的深部物质组成与结构构造,重塑超高压变质带形成与折返机制,探索深部流体与生物圈,检测现代地质运动,建立长期的地下观测实验站及地壳深部物质研究基地。
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On the basis of previous research and the authors' field investigations,it is thought that the complex geological structures,strong crust movements and rivers erosions,frequent earthquakes,abundant loose deposits,favorable geomorphology,well-developed modern glaciers and plentiful precipitation are the principal causes of triggering frequent mudflows in the study area.
根据前人的成果以及作者的实地调查,认为复杂的地质构造、强烈的地壳运动和河流切割、频繁的地震、丰富的松散堆积物、有利的地形地貌、现代冰川以及丰沛的降雨是研究区泥石流灾害频繁发生的主要原因。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。