查询词典 petrological

In this doctoral dissertation, the modes of occurrence of about 30 elements and their combination with macerals and minerals in the coals from 10 typical coalfields in China are systematically researched by sink-float tests and petrological methods based on the investigation to the concentration distribution of trace elements in Chinese coals.

本文从分析中国煤中微量元素含量分布的基本特征出发，选择了中国10个有代表性的煤样，通过浮沉试验和煤岩分析等手段，系统地研究了中国煤中30余种微量元素的赋存状态，主要是这些元素在各种煤岩组分中的分布特征。

The rapakivi granites have a number of petrological peculiarities.

环斑花岗岩具有若干岩石学的特征。

On the basis of P-T estimated results and geophysical data, the petrological zoning model of Mesozoic lithospheric mantle in eastern North China block is set up in the thesis.

依据深源岩石包体的P-T条件估算结果，结合地球物理测深资料，本文建立了华北地块东部中生代岩石圈地幔的岩石学分带模型。

A detailed geological, isotope chronological, petrological and geochemicalstudy combined with collection and sorting out of relevant data has been carried out on thegranitoids.

本文系统收集和整理了相关地质资料，并对区内中生代花岗岩类进行了较详细的地质学、年代学、岩石学和岩石地球化学研究。

His paper reports the petrological and geochemical characteristics of Permian alkaline and tholeiitic basalts in the Shuanghu Area, central Qiangtang Block.

对青藏高原羌塘地块中部双湖地区发育的二叠系碱性系列和拉斑系列玄武岩进行了详细的地球化学研究。

In this paper the Lannigou and Getang gold deposits were considered as typical Carlin-type gold deposits in Southwest Guizhou, China, with the aim to state the relationship between organic matter and mineralization based on the organic petrological study of solid organic matter in the two deposits.

本文以黔西南烂泥沟和戈塘两个典型金矿床为例，系统研究了其中的固体有机物质的有机岩石学特征，并探讨了固体有机质与金矿化的关系。

This dissertation is characterized with the application of petrological methods in the study of trace elements in coals. The modes of distribution of trace elements in macerals and minerals in coals are proposed by means of the integration of two well-operated technologies, sink-float test and maceral analysis.

本文的主要特色在于将煤中微量元素研究与煤岩学方法紧密结合，运用浮沉试验及煤岩分析两种成熟技术，有效地解决了煤中微量元素在各种组分中的分布研究问题。

The comprehensive research showed that coalbed methane accumulation is mainly controlled by coal seam thickness ,coal petrological composition,coal rank,adsorbability and good preservation conditions.

综合研究表明：该区煤层气富集的控制因素主要为煤层厚度、煤岩组分、煤级、吸附性能和良好的保存条件。

The fluid inclusions were divided into three types including six subtypes according to their petrological characteristics, phase state at room temperature and compositions.

根据岩石学特征、室温下包裹体相态特征和成分差别，这些包裹体可以分成三大类六小类。

The petrological and isotopic features indicate that the Lisong enclaves and hosting granite were basically crystallized at the same time, but with different crust-mantle proportions and different sources.

岩石学和同位素地球化学特征也表明，里松包体和寄主花岗岩基本同时结晶，但壳幔比例和来源有所不同。

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。