岩石学

Based on the petrological and sedimentological research the paper discusses on tectonic background of the Changcheng System clastic rocks, especially on the syndepositional diastrophism.

本文综合岩石学和沉积环境的研究结果，进一步探讨了长城系碎屑岩的沉积背景，重点讨论了同沉积期的构造活动特点。

Based on the strontium concentration,isotope composition of the dolomites,the dolomitization fluids were accordingly inferred here.

根据白云岩的锶舍量和锶同位素组成，结合相关岩石学和地球化学资料，本文研究了白云石化过程中锶的迁移和相应的同位素变化。

It mainly reaches the following achievements:1 Through the research of petrology and geochemistry, it is found that dunite takes over 85 percent in ultramafic intrusion, which largely contains Mg(39.66%-47.20%) and Fe(733%-11.17%). The containing of Mn. K. Na, P and Ti is less than 0.1 percent respectively. So it has typical characteristic of leaving of mantle rocks, while it doesnt have partly characteristic of melting.

主要取得以下认识： 1 通过对超镁铁质岩体的岩石学、地球化学研究发现，松树沟超镁铁质岩体主要由纯橄榄岩和方辉橄榄岩组成，纯橄榄岩占85%以上，变质浅，变形相对简单，富含Mg(39.66%—47.20%)和Fe(7.33%—11.17%)，Mn、K、Na、P和Ti的含量通常都低于0.1%，具有明显的地幔岩残留体性质，而不具有部分熔融的特征。

After many studies on geochronology, geochemistry and petrology of the eclogite from Bixiling have been done, its formation and metamorphic history are well known now.

根据大量年代学、地球化学和岩石学等方面的研究，前人对碧溪岭榴辉岩的形成及变质历史有了较明确的认识，但这些研究对超高压变质前后过程中元素和同位素的变化涉及较少。

This paper, based on previous data, detailed core observation and petrology features, puts forward that member 1 of Shanxi Formation represents marine facies or the marine-continental transition depositional environment, such as ①high maturity of the component and texture squartz-sandstone,②micrite siderite stone,③sea lily, foraminifer mudstone,④bauxite mudstone and ⑤crystal powder dolomite.

在前人大量研究基础上，通过详细的岩心观察和岩石学特征的分析，在山西组一段发现了代表海相或海陆过渡环境沉积的典型特征，分别为①成分成熟度和结构成熟度均高的石英砂岩、②泥晶菱铁矿岩、③海百合、有孔虫骨屑泥岩、④铝土矿质泥岩和⑤粉晶白云岩。

In this paper, the gabbro was investigated by petrologic and geochemical methods and calculated by means of PELE program (a silicate liquid crystallization program).

对该岩体进行了岩石学和地球化学方面的研究，并采用PELE（硅酸岩熔体结晶计算软件）模拟了岩浆结晶过程。

Firstly, based on the observation and description of a large number of drilling cores in macroscopic and microcosmic aspects, facies marks are summarised, which supplied from the characteristics of lithology, distribution of grain size, sedimentary structvure, ichnology and logging facies.

首先，在对大量岩心宏观和微观特征描述的基础上，从岩石学特征、粒度分布特征、沉积构造特征、遗迹化石特征以及测井相特征等五方面，总结出研究区的各类沉积相的相标志，为沉积相的识别和划分提供了有力的依据。

The classification of igneous rocks is an old topic in the long history of igneous rocks petrography.

火成岩的分类命名问题，在火成岩岩石学的研究历史中是一个比较古老的话题。

Up to now, there are no obvious petrologic and geochemical evidences to prove that the immiscibility during the formation and evolution of pegmatites is resulted from the perphosphorus feature in melt phase.

4伟晶岩岩浆形成和演化过程是否存在由过磷引起的液相不混溶现象未见确凿的岩石学和实验地球化学证据。

Three kinds of sedimentary facies were identified, namely, the terrestrial river, lake, and the transitional facies of marine-terrestrial lagune base on the characteristic of the lithology, the sedimentary structure, and the geochemistry characters.

根据岩石学、沉积构造和地球化学特征，识别出三类沉积相：即陆相河流、湖泊和海陆过渡相的有障壁滨岸。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。