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地质学上，此石材属于火山凝灰岩。In petrographic terms, this stone is defined as volcanic tufa.

硅酸盐岩相分析技术做为一种有效的研究方法广泛应用于玻璃结石缺陷的分析鉴定。Silicate petrographic analysis is widely used as an effective method in evaluation of stone like defects in glass.

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岩相学特征和地球化学模拟也都表明这些富铝矿物结晶较晚。Both petrographic features and the geochemical modeling also show that they are the late-stage crystallization phases.

本网站提供了协会介绍、岩相学地图集简介，成员，年会等相关信息。This web site provides information about society description, introduction of petrographic atlas, member, annual meeting, etc.

本文在研究过程中采用了熟料试烧、小磨试验、X-射线分析、岩相分析、物理性能试验等手段来分析相互关系及机理。This text adopted the method of clinker burning, X-ray analysis, petrographic analysis to analyse the relationship and mechanism.

系统的岩相学研究表明，这些夕线石系由叶蜡石直接转变所成。Petrographic examination under the microscope showed that this kind of sillimanite is formed directly from the decomposition of pyrophyllite.

并以四川红系列花岗岩石材加工为例，说明了花岗岩岩相学特征对岩石可锯性影响的程度。The example to process the Sichuan series of red granites indicates that the sawability will be effected by the petrographic characters of the granites.

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扼要地概括浮选原料的性质与原煤的岩相组成的关系，特别是和工艺流程的关系。The relation between the character of the flotation feed and the petrographic constituents of raw coal and especially the flowsheet is briefly described.

采用SEM、EDAX、OM等分析测试方法，研究了稀土贫矿掺加条件下，水泥熟料的岩相结构及其微区化学组成。By means of SEM, EDAX and OM, the petrographic structure and microscopic chemical composition of cement clinker have been researched by adding rare-earth lean ore.

较早次单元中富含镁铁质微粒包体，经包体岩相学研究，花岗岩浆具壳幔混合成因。The earlier units contain abundant mafic micro-enclaves, and the petrographic study of the enclaves indicates the crust-mantle mixing origin of the granitic magma.

研究表明煤粉燃烧率不仅与煤种、煤粉粒径有关，而且还与煤质、显微组成和结构有关。Investigation and laboratory work show that the combustion rate of pulverized coal is not only determined by its rank and particle size but also by petrographic property.

采用热重分析和岩相分析等方法，对复杂煤种的燃烧特性进行了评价。By adopting the analytic methods such as thermal-gravimetric analysis and petrographic analysis, an appraisal research on burning characteristics of the composite coal is made.

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通过岩相分析方法研究了钢包粘渣试样各段带的显微结构特征，探讨了钢包粘渣的过程和机理。By petrographic analysis the microstructure characteristics of ladle slag building-up has been researched and the process and mechanism of the ladle slag building-up discussed.

因为各显微组分组的性质不同，所以对大同煤的研究和利用必须考虑其煤岩组成的差别。Because the properties of maceral groups are not similar, the difference of petrographic constituents should be taken into consideration when Datong coal is utilized or studied.

武当岩群中的变火山岩类经历了海水蚀变和区域变质的改造，其岩石学特征和化学成分发生了较大变化。The meta-volcanic rocks in the Wudang Rock Group have undergone alteration and regional metamorphism, so these rocks have been changed in petrographic features and chemical compositions.

以岩相学方法之一的晶体光学方法，分析确定了配合料、析晶结石的名称、特点。This paper analyzes and determines the names and characteristics of the batch and de- vitrification stones by the crystal-optics method which is one of the petrographic analysis methods.

基于煤岩分析、仪器分析及有机溶剂抽提等方法，对焦坪煤进行了系统的煤岩、煤质研究。This paper deals with petrographic characteristics and coal qualities of Jiaoping coal by means of coal petrologic, instrumental analytical and organic solution extraction methods, and so on.

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这为探讨这些花岗岩的成因提供了岩石学依据，同时也暗示晚古生代佳木斯—松嫩古陆可能发生过地壳的垂向生长。This provides petrographic evidence for the study of the genesis of the granites and also implies that vertical crustal growth probably took place in the Late Paleozoic Jiamusi-Songnen craton.

通过对实际生产中各种常见硅质结石缺陷的岩相鉴定及生成机理分析，对该类结石来源进行探讨，并提出解决的办法。The origin of the usual siliceous stone in float glass was discussed on the basis of petrographic examination and its formation mechanism analysis . A solution to this kind of stone was proposed.

液相温度用偏光显微镜和半定量X射线衍射强度外推法两种方法来确定，并且这两种方法测出的结果比较接近。The liquidus temperatures determined by petrographic microscopy method are in better aggreement with those determined semiquantitatively by the extrapolation method of X-ray diffraction intensity.