地壳
- 与 地壳 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This paper deals with and summarizes the research and importance of ductile shear zones and presents the future direction and aim for the research of the ductile shear zones around the world. Four aspects of studies of the ductile shear zones have been proposed in this paper as follows:(1) The stress environment including the mineral assemblages, deformation, stress-shearing parameters;(2) The major element sequence and activation under condition of stress;(3) The variations of trace elements and REE, their transportation distributions under strong natural deformation as well as variations of mineral crystal parameters, which can also control the element changes during the ductile deformation;(4) The relationship between element migrations, activation and stress, which will present the new evidences for the studies of dynamic diagenesis and mineralization as well as the studies of evolution of ductile shear zones developed in middle and low levels.(5) The analysis of elements and isotopes in mylonites on the micro-scale are crucial for the understanding of component migrations during the mylonization.
对韧性剪切带及其变形岩石的研究现状和研究意义进行系统的综述,提出了未来韧性剪切带及其糜棱岩的研究方向和目标:①系统研究糜棱岩中主要造岩矿物组合及其变形特征,计算剪切变形岩石的应力-应变参数,搞清韧性剪切带所处的应力应变环境;②系统研究韧性剪切带岩石在天然分强剪切应力作用条件下常量元素迁移机制及活化转移的应力排序问题;③系统研究剪切变形作用过程中岩石化学组成的微量和稀土元素变化,讨论强变形条件下岩石中微量元素活化和迁移规律,深入探讨微量元素迁移的动力控制,包括稀土元素配分变化的应力制约以及应变矿物晶格化学变化行为及其对其寄主的变形岩石元素在应变过程中迁移变化的制约和影响;④从理论上探讨天然强剪切应变条件下岩石中组分活化、转移与应力的因果联系,为深入探讨韧性剪切带动力成岩作用提供理论的科学依据,为探讨中、下地壳中韧性剪切带的形成和演化提供科学依据,同时为韧性剪切变形作用条件下成岩、成矿地球化学作用提供理论和实验依据;⑤现代分析技术如激光同位素原位分析以及激光ICP-MASS分析技术对研究变形域内的岩石的元素和同位素的活化迁移规律,对深刻揭示糜棱岩化过程中的元素活化迁移机制提供更高质量的地球化学证据具有重要的作用。
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Given what geologists think the temperature of these zircons was when they formed, that means the diamonds were probably squeezed into being by the pressure of 100-150 kilometres of crustal rock lying above them.
假定地质学家所认定的锆石的温度就是指它们成形时需要的温度,那也就是说那些钻石很可能在承受了来自于外部的,厚达100到150公里的地壳岩石的压力后被挤压成形。
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The gold content of mantle rocks, especially the gold content of mantle-derived xenoliths may be an indicator to the distribution of gold deposits-concentrated districts.
地幔岩特别是地幔岩包体中金含量的高低,对地壳中金矿床和金矿集中区的分布有指示意义。
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The results of investigation show that the crust in Junggar basin features continental character, and the basement of the basin is characterized by two-layer structure, the upper layer is Hercynian folded basement, and the lower is Pre-Cambrian crystalline basement.
结果表明,准噶尔盆地地壳具有陆壳性质,基底为双层结构,上层为海西运动期褶皱基底,下层为前寒武系结晶基底,褶皱基底厚度不超过10 km,在三个泉凸起以北厚度较大,为3~10 km。
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An attempt has been made in present paper to advance the early periodic evolution of the earth crust in this region in four stages, by studing and analyzing the features of regional geophysical fields; the constitutional feature, division and correlation of early Pre-Cambrian strata of this region; the facies, formation and palaeogeographical environment; the development and evolution of palaeotectonic deformation and its control of the metamorphic iron ore.
本文从区域地球物理场特征、本区前寒武纪早期地层的组成特点和划分对比、岩相建造古地理环境、古构造变形及其对变质铁矿的控制作用,提出本区地壳早期演化分为四个阶段:1。
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The Xizang Plateau is the most intense area for geothermal aetivi tyes in our country the crustal structure is very complex and earthqueke activities are extremely frequent.
本文根据西藏高原地热活动与温泉分布和各种地球物理场的特征,进行了综合分析与研究,给出了地壳深部要素的统一解释。
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Cu-Ni sulfided mine complex locate in BaimaZai of JinPing County is sub alkali iron-super iron, it"s zoning is clear and it"s Ni-Cu-Co melting first and enrichment, its rare earth is rich in right lean light rare earth, but Eu in olive rock is serious to be bad, Gd-Tb is tittles negative abnormity. Above-mentioned show that the mineral is cone from mantle, and didn t mix with crustal substance, and continent tholeiite magma turning into continent tholeiite emplacement after by surging.
金平白马寨铜镍硫化矿床杂岩体分带明显、属亚碱性铁质-超铁质岩、具Ni-Cu-Co三元素先熔离,后富集的规律、稀土配分为右倾斜轻稀土富集型,但橄榄岩铕亏损显著,Gd-Tb微小负异常,显示成矿物质来源地幔,与地壳物质无混染和大陆拉斑玄武岩浆上涌后变为大洋拉斑玄武岩浆侵位特点。
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The infective larva of some tapeworms,characterized by its solid elongated body.
地堑在两个地质断层之间的,通常很长的地壳下降部分
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Geochemical data indicate that the syenites were originated from the remelting of the underplated mafic lower crust which composition had been changed by the asthenospheric upwelling.
地球化学数据表明,正长岩体是受软流圈组分改造过的底侵基性下地壳重熔后经结晶分异的产物。
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Interior structure of Earth can be general classify into crust, mantle and core, the mass is distributed as onion layer like structure.
地球内部之构造大体可分为地壳、地函与地心,以洋葱状有不同质量一层层的分布著。
- 推荐网络例句
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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.
此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。
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To get the business done, I suggest we split the difference in price.
为了做成这笔生意,我建议我们在价格上大家各让一半。
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After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.
一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。