The reservoir types in lucaogou formation is carbonate rock , clastic rock and tuff , while the reservoir types in tiaohu formation is mainly tuff and volcanic rock 芦草沟组储层岩石类型主要有碳酸盐岩、碎屑岩及沉凝灰岩，而条湖组则主要为火山岩和沉凝灰岩。
The ophiolite massifs are composed of mantle peridotite that is mainly harzburgite and dunite , and lacked of crust magmatite within the typical ophiolite suite 摘要该蛇绿岩带的岩体由地幔橄榄岩组成，主要岩石类型是方辉橄榄岩和纯橄榄岩，缺少典型蛇绿岩剖面中的洋壳单元。
This article studied the rock side slope ecological recovery technology and worked out the optimal anchor rod depth and space on different rock side slope of different gradient , based on the anchor rod acting force analysis 摘要围绕岩石边坡生态恢复技术，通过对锚杆受力情况的研究分析，确定了在不同岩石类型以及不同坡比的坡面上，其锚杆的最佳锚固深度和最佳锚固间距。
( oxifordian - kimmeridgian ) , xueshan fm . ( tithonian - berriasian ) . according to field investigation , thin section identification and many other methods of sedimentary petrology , rock types of jurassic strata include carbonates , argillaceous rocks and clastic rocks 结合野外观察和室内镜下鉴定等多种沉积岩石研究方法，研究区侏罗系岩石类型计有碳酸盐岩、泥质岩和碎屑岩三大类。
The mineralogical characteristics suggest that different rock types of kuzigan intrusion are products of the same magma , and that the magma , instead of being affected much by fractional crystallization , has dominantly experienced equilibrating crystallization 研究表明，苦子干岩体中的不同岩石类型系同源岩浆演化的产物；岩浆在整个演化过程中平衡结晶作用占主导，分离结晶作用的影响极小。
This paper describes distribution characteristics of helium isotopos and some trace elements in different types of rocks along dabie mountain ultrahigh pressure metamorphic complex belt as well as along liuan - caihe geo - science profile , and deals with their affecting factors and geological significance 摘要报导了大别山超高压变质杂岩带不同岩石类型及六安蔡河地学剖面中氦同位素和某些微量元素的分配分布特徵，并讨论了它们的影响因素及其地质意义。
Comparing with other rocks , black shales are actually a series of sedimentary rocks enriching sulfide minerals , organic matters and trace elements such as v , ni , mo , cu , zn etc . thorough studies of black shales weathering have important theoretical , economic and environmental values 与其它岩石类型相比，黑色页岩是一类富含硫化物、有机质以及v 、 ni 、 mo 、 cu 、 zn等微量元素的沉积岩，对该类岩石进行化学风化作用研究具有重要的理论、环境和经济价值。
According to the constructive principles of these diagrams , the following aspects must be thought carefully : the rock types to be studied must be the same or nearly the same as those that can be discriminated by the diagram ; to avoid mixed or incorrect signals that could be produced , two or more such diagrams shall have to be jointly used ; for special rock types , such as a - type granites or potassic igneous rocks , special discriminative diagrams have to be determined and selected respectively ; the samples to be studied can not be altered ; in general , the diagrams must be used carefully with archean samples ; the petrotectonic assemblage or an expert system are recommended to be used together with the discrimination diagrams 强调指出：所采集的样品必须新鲜（无蚀变或极弱蚀变） 、非堆晶的岩石；选择的判别图解必须与判别的岩石类型相一致，即对花岗岩类要用花岗岩的判别图解，不能用玄武岩的判别图解；对特殊类型岩石要选择专门用于该类型岩石的判别图解，如碱性花岗岩，钾质火成岩；要应用多种图解综合判断；不能用单个样品，而应作多个样品分析；要注意所选择判别图解的特别说明等。
On the basis of the study on the mineral composition and rock types of jadeite , the authors determine that the specific density and refractivity of jadeite ranges from 2 . 93 to 3 . 60 and from 1 . 593 to 1 . 750 respectively , the specific density and refractivity of jadeite with high quality ranges from 3 . 178 to 3 . 240 and from 1 . 644 to 1 . 657 respectively , and offers the objective basis for jadeites quality appraisal , through setting up several charts of the relation between jadeite ' s specific density refractivity and its mineral composition 从翡翠的岩石学、矿物学角度出发，讨论了翡翠的岩石类型，依据组成翡翠的主要矿物的比重和折射率值，建立了翡翠矿物组成成分及含量与其比重、折射率关系图解，确定了各种翡翠的比重、折射率变化范围分别为： 2 . 93 ~ 3 . 60和1 . 593 ~ 1 . 750 ；优质翡翠的比重、折射率分别为： 3 . 178 ~ 3 . 240和1 . 644 ~ 1 . 657 ，为翡翠的质量评估提供了客观依据。
Reefs are well developed in western hubei and eastern chongqing . through sedulous research , the whole acquaintance on types of reef builders , types of reef carbonatite , development and evolution of reef organisms , division of reef facies , distributing regularities of reefs and diagenesis has been concluded . according to the comprehensive studies , the following results and conclusions have been obtained 通过对鄂西渝东区上二叠统长兴组生物礁造礁生物、沉积相、成岩作用的研究，认清了礁体的主要造礁生物类型、主要岩石类型、生长演化、相带划分、分布规律以及成岩作用，可以得出以下结论和认识： 1生物礁主要分布于晚二叠世碳酸盐台地内部和台地边缘，可分为三种类型。
