主岩

Indicator principal component microfacies simulation is a technique for describing lithofacies or microfacies distribution using sequential indicator simulation method based on selection of principal components with discontinuous variables.

1·大庆油田有限责任公司勘探开发研究院黑龙江大庆 163712； 2·北京大学地质系北京 100871； 3·西安石油学院计算机系陕西西安 710065摘要指示主成分模拟是在提取不连续变量主成分的基础上，采用序贯指示方法模拟岩相、沉积微相的分布。

On the base of large quantitative test, using coal petrography and organic geochemical data, the source of oil and gas in the coal-measures is analyzed. And it is concluded that the area's Yan'an group coal-bed has a low potential of oil production, and the oil and gas contained in the coal-measures and superjacent strata comes from underlying Upper Triassic Yanchang group strata. After a series of parameters of coal seam and surrounding rocks are tested, gas formation, storage, preservation, permeability of the coal-rock seam are analyzed and evaluated.

本文在大量测试工作基础上，利用煤岩学与有机地球化学资料，分析了煤系油气的来源，认为本区延安组煤系煤层生油潜力差，煤系及其上覆地层所含油气为下伏上三叠统延长组源岩所生，油气主要通过迭置的砂体、不整合面、构造裂缝等自下向上运移进入煤系；通过对煤层及围岩一系列物性参数的测试，分析与评价了煤岩层的生、储、盖、渗性能与可抽放性，得出主采4_(-2)号煤层属中等储集、低渗透层，围岩封闭性差，渗透性高，煤层瓦斯含量低，而顶板砂岩瓦斯含量高，为采面瓦斯涌出的主要来源。

This study focus on the structural hydroxyl concentrations of rutile in eclogites from main-hole of the Chinese Continental Scientific drilling project and its areas nearby employing microscope Fourier infrared spectroscopy with unpolarized light.

本文采用傅立叶变换红外光谱研究了中国大陆科学钻探主孔岩芯及其周围地表榴辉岩中副矿物—金红石中的结构水。

The washability of coal in different coal facies is discussed using the density distribution of coal samples from Wuda coal mining area,Inner Mongulia.

对内蒙古乌达矿区主采煤层9煤层的煤岩学特征和煤相进行了分析，用煤样密度组成的煤岩学方法讨论不同煤相煤的可选性。

Among them, large scale I -1 insidious ore body has been found in beresitized cataclastic rock belts, the proportion of gold resources is 39.39%, and great break through in ore probing has been gained as well.

其中，在主裂面下盘的黄铁绢英岩化碎裂岩带内发现了规模较大盲矿体I-1号矿体，其资源储量占总量的39.39%，取得了深部找矿的重大突破。

The lithology of the hanging wall is fine-grained sandstone, sandstone and shale in Cambrian, and dolomite, dolomitic limestone of Devonian in foot wall. The main ground rupture is located at the boundary of two stratums.

主断裂的地表破裂集中位于两个地层的不整合面上，上盘为寒武系细砂岩、砂页岩，下盘为泥盆系白云岩、白云质灰岩。

According to the lithologic correlation,the feature of basic sequence,fossil assemblages and isotope assaying ,mass formation within Hercynian period in Hongliuhe area is composed of Hongliuhe Group made up of detrial and volcanic rocks of marine facies , carbonate and continental molasse.

据岩石组合、基本层序特征，结合生物化石鉴定和同位素测年结果，红柳河地区海西期物质建造由红柳河群海相碎屑岩、碳酸盐岩、火山岩建造和陆相磨拉石建造组成，主期变形形成主干褶皱———红柳河向斜及伴生构造，变形机制为纵弯褶皱作用兼具一定压扁特点，总挤压收缩率达 40 %～ 70 %，反映了造山后强烈陆内收缩变形特点。

Based on detailed studies of petrographic characteristics and major elements of minerals, the authors analyzed trace elements of Cpx in the peridotitic xenoliths from Jining area, Inner Mongolia.

在详细岩相学特征和组成矿物主元素分析基础上，重点对内蒙古集宁玄武岩中橄榄岩包体的单斜辉石进行了激光原位微量元素研究。

This paper presents petrological and geochemical data of Au-mineralization-related alkali-rich porphyries in the Beiya gold deposit and its adjacent regions, western Yunnan.

提供了与滇西北衙大型金矿床密切相关的富碱斑岩的主量元素及稀土和微量元素的分析数据，对富碱斑岩的成因、起源条件和源区类型进行了讨论。

By assuming the grouting curtains to be block elements cut by relatively unpermeable discontinuities, and the drainage curtains to be plane discontinuities according to their main strike and dip angles on the basis of equivalent flow, they can be brought into the blocks and discontinuities system and be modeled conveniently.

本文假定防渗帷幕是由相对不透水结构面切割而成的块体单元，并根据流量等效的原则将岩体中的排水孔幕按其主倾向和主倾角等效成为平面结构面，从而将防渗帷幕和排水孔幕都纳入到块体和结构面系统中，统一进行数值模拟。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。