查询词典 mineralogy

In this paper, though the field geological investigations, and studies of element-isotope geochemistry, mineralogy and the geo-chronology, combining with the regional geotectonic analysis, the geochemical characteristics and petrogenesis of the mafic dikes from the coastal areas of Guangdong Province and Hainan Island are discussed, mafic magma episodes and mantle characteristics are analyzed, and the relationships between mafic magmatism and lithosphere evolution are studied.

本论文通过野外地质调查和一系列配套的岩石化学、微量元素、同位素地球化学、矿物学及年代学方法，结合区域地质构造分析，对广东沿海地区及海南岛基性岩脉的地球化学特征、成因、基性岩浆活动期次、地幔源区地球化学特征，以及岩石圈结构特征、形成机理和演化等进行了探索性的研究，得出以下几点认识： 1。

Here we report the detailed petrography and mineralogy of this new lunar meteorite with the hope to better understand of the geological processes on the Moon and the chemical composition of the lunar crust.

本文报道了Dhofar 1180的岩相学和矿物化学特征。

1 State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China; 2 Division of Petrology and Mineralogy, China University of Geosciences, Beijing 100083, China

作者单位： 1 中国地质大学地质过程与矿产资源国家重点实验室，北京100083；2 中国地质大学岩石矿物教研室，北京100083

This paper deals with the new advances made in recent years in the study of mineralogy, petrology, geochemistry and metallogenesis of the Bayan Obo ore deposit.

本文论述了近年来白云鄂博矿区在旷物学、岩石学、地球化学和矿床成因研究方面的进展。

In this paper, the petrology, mineralogy and geochemistry of basic-ultrabasic volcanic rock, granite and skarn related to the Sn-Cu skarn-type ore and the vein-type ore in Laochang ore field have been researched systematically, some conclusions are summarized as follows:In Gejiu tin-polymetallic district, the middle Triassic volcanic rocks belonging to calc-alkaline basalt-tholeiite serie, mainly consist of pyroxene, hornblende, feldspar, chlorite and phlogopite; All the granites are peraluminous granites related to the Yanshanian collision-orogeny. Laoka granite closely related to the tin-polymetallic deposits emplaced in the post- orogenic.The metal elements show obviously vertical zones with the variety of skarn types in dimensional extension; The occurrence of garnet skarn and diopside skarn alternately developed in the horizontal zones of the contact between granite and carbonatite are mainly related to two factors: one factor is the infiltration metasomatism of post-magmatic hydrothermal solution, the another is the metrical strata of marble and calcic-dolomite developed in country rocks.

本文重点以老厂矿田中的接触带锡铜矿床和脉状矿床为研究对象，采用化学分析、ICP-MS、X射线粉晶衍射分析、电子探针等测试手段，对本区与成矿相关的基性-超基性火山岩、花岗岩、夕卡岩、电气石-石榴石等进行了系统的地质地球化学研究，研究表明：个旧矿区中三叠纪个旧组地层中的火山岩为钙碱性玄武岩-拉斑玄武岩系列，岩石为辉石-角闪石-长石-绿泥石-金云母组合；本区的花岗岩为过铝质花岗岩，主要与燕山期碰撞造山作用有关，锡多金属成矿与形成时代最晚、分异较好的花岗岩关系密切；本区夕卡岩中的有用共生组份随着夕卡岩类型及其矿物组合的不同具有明显的分带性。

The paper about the studies on alteration-deformation rock mineralogy and geochemistry indicates from unaltered phyllite to ultramylonite, SiO〓, CaO increase, Al〓O〓, TiO〓, TFe, MgO, K〓O decrease, P〓O〓 and MnO〓 almost remains constant, with the deformation degree increase.

蚀变变形岩石学及地球化学研究表明，由未蚀变的千枚岩经糜棱岩到超糜棱岩，随着变形程度的提高，SiO〓、Na〓O含量逐渐增加，Al〓O〓、TiO〓、TFe、MgO、K〓O逐渐减少，而P〓O〓、MnO〓基本保持不变，岩石的密度也逐渐降低。

This paper deals mainly with the characteristics of the petrology, mineralogy, petrochemistry and geochemistry for the basic volcanics. The above result has indicated that these volcanic rocks are mainly a suite of eruptive pillow basic lava from the sea-floor, which have the characteristics of the continental and oceanic tholeiites and belong to the evolutionary products of the Liaohe rift from continental crust to oceanic crust.

重点討论了基性火山岩的岩石学、矿物学、岩石化学和地球化学特徵，结果表明，这些基性火山岩主要为一套海底喷发的基性枕状熔岩，具有大陆拉斑玄武岩和大洋拉斑玄武岩的双重特徵，是辽河裂穀由大陆壳向大洋壳演化过程中的產物。

The results of process mineralogy showed that copper mineral of zinc-lead-copper complex sulphide ore existes as chalcopyrite,aftonite-binnite,polybasite and boumonite;and it was relied mainly on chalcopyrite and then aftonite-binnite.

工艺矿物学研究结果表明会理锌矿含铜的铅锌硫化矿中铜矿物以黄铜矿、银黝铜矿-砷黝铜矿、硫锑铜银矿、车轮矿等矿物形式存在，并以黄铜矿为主，其次为银黝铜矿-砷黝铜矿系列矿物。

In this paper the suit of granodiorite is prelimnarily proved to be remelt type granite in which the major rock-forming substances are derived from the crust and a few from the mantle by study on petrology, genetic mineralogy, geochemistry, trace elements, rare earth elments and isotopes combining with the re gional geological evolution and geological chronology.

此次工作，通过进一步对该套岩体的岩石学、矿物学、地球化学、微量元素、稀土元素和同位素等方面研究，并考虑了区域地质演化和地质时代等因素，基本上证明其并非幔源分异型花岗岩，也不是典型I或S型花岗岩，而是一种以地壳物质为主、地幔物质为辅的混源重熔型花岗岩。

Its major corpus is one mineral specie contained with manganese, among which rhodonite is the leading specie. Therefore the formal name of Rose Stone in mineralogy is called rhodonite.

其中以含锰的矿物群为主体，在含锰的矿物群中又以蔷薇辉石为主，所以玫瑰石在矿物学上是称为蔷薇辉石。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。