岩石学

In this paper, though the field geological investigations, and studies of element-isotope geochemistry, mineralogy and the geo-chronology, combining with the regional geotectonic analysis, the geochemical characteristics and petrogenesis of the mafic dikes from the coastal areas of Guangdong Province and Hainan Island are discussed, mafic magma episodes and mantle characteristics are analyzed, and the relationships between mafic magmatism and lithosphere evolution are studied.

本论文通过野外地质调查和一系列配套的岩石化学、微量元素、同位素地球化学、矿物学及年代学方法，结合区域地质构造分析，对广东沿海地区及海南岛基性岩脉的地球化学特征、成因、基性岩浆活动期次、地幔源区地球化学特征，以及岩石圈结构特征、形成机理和演化等进行了探索性的研究，得出以下几点认识： 1。

The goal of the society is to encourage and promote the practice, research and development of coal science in Canada and abroad through the practice of coal petrography and geochemistry, and to act as an advisory body to teaching, training, industrial and research establishments on a national and international level.

该协会的目的是通过煤炭岩石记述学和地球化学的实践，以鼓励和促进加拿大煤炭科学的研究和发展，并且从事国内外教学、培训、产业组织和研究机构的顾问工作。

The fluid inclusions in several types of rocks in the Dabie UHP zone were systematically investigated in the aspects of petrography and temperature of phase change.

对大别超高压变质带主要构造单元各类地质体岩石中的流体包裹体进行了岩相学和相变温度的观察与测定。

Topics covered include, the properties of light and its interaction with mineral grains: reflection, refraction, polarisation, interference phenomena, extinction, colour and pleochroism. Refractometry inclusive isotropic, uniaxial and biaxial optics and the interpretation of interference figures. Transmitted light petrography in the identification and familiarisation with major rock forming minerals in grain mounts and thin section.

讲稿内容涉及到光学属性分析与矿物交叉面相互反应，具体内容有反射、折射、偏振、光干涉现象（包括等方性、单轴、二轴光学及干涉数据解释）、岩石记述学、矿物的光学属性鉴定等方面。

Petrochemical and mineralogical characteristics of fresh basalt and its saprolite from Touzhai landslide in Zhaotong, Yunnan Province, are described in terms of chemical analyses, optical observations of thin sections and SEM observations.

利用化学全分析、薄片鉴定及扫描电镜等测试、观察手段，分析了头寨滑坡发生的岩体玄武岩及其腐岩玄武岩腐岩的岩石化学和矿物学特征。

A continuity model of engineering rock masses is built and the schematization method of engineering rock continuity reported.

工程岩体力学参数的合理确定是多年来岩石力学界存在的一大难题。

Their research programme is available online and covers many areas of rock fractures, such as: fault and shear zone growth, effects of joints and faults on fluid flow, earthquake studies and active tectonics, etc.

网上提供了有关该计划的研究程序以及相关岩石断裂领域的知识，如缺口和剪切区域发育、关于流体流动的接点和缺口、地震研究及当代筑造学等。

As for models of hydraulic behavior, this paper makes a thorough study on aperture of rock joins、the number of open cracks after heating in rock mass、the fracture interconnectivity、tectonic stresses、the dilation due to shear sliding and chemical composition, and utilize fluid permeability tensor proposed by Oda, the tensor field of permeability in the fracture rock mass with coupled THM properties is derived.

在裂隙岩体力学模型方面，利用0'Connell建立的干裂隙岩体等效弹性模量与岩石模量的关系式，并由式中的裂隙密度概念意义，建立了温度作用下的裂隙密度与Oda提出的裂隙张量之间的关系式。

In the thesis, with the background of longtan project, adopt the methods theoretic analysis and intelligent arithmetic to research and discuss. The primary tasks in this thesis are stated as followed:(1)Predigesting rock character of the model of 72# cave, taking into account the major factor of the terrane, according the geologic information, build the numerical value model.

本文以有代表性的龙滩水电站工程边坡岩体为研究对象和工程背景，采用理论分析与反演分析相结合的方法，对岩石的流变性能进行了研究与探讨，主要工作如下：(1)对72#模型试验洞岩层的力学特性进行概化，考虑岩层的主要力学性质，根据地质资料的描述，建立岩体力学特性的地质概化模型。

Petrographic and REE and trace element geochemical studies of these rocks and Nd isotope analysis of amphibolite indicate that the protoliths of the Mengjiatun Formation complex are sandstone, mud-rich sandstone and island arc tholeiite.

对这些岩石的岩相学，稀土元素，微量元素地球化学的研究和斜长角闪岩Nd同位素的初步分析，表明孟家屯岩组的原岩建造为一套砂岩，富泥质砂岩和岛弧拉斑玄武岩组合。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷