正长岩

霞石正长岩是一种富含K2O、Al2O3、SiO2的矿产资源。

Nepheline syenite is an important kind of mineral resource rich in K_ ( 2 ) O , Al_ ( 2 ) O_ ( 3 ) and SiO_ ( 2 ) .

实验表明，花岗岩、玄武岩和正长岩三种岩石，当正应力为10MPa时发生稳滑，当正应力超过10MPa时发生粘滑。

The experiments show , that for granite , basalt and syenite while the normal stress was 10 MPa the stable sliding happened , but while the normal stress was beyond 10 MPa the stick-slip took place .

霞石正长岩合成13X分子筛及综合利用研究

Synthesis of 13X Molecule Sieves from Nepheline Syenite and its By-products

三亚石榴霓辉石正长岩的锆石SHRIMPU-Pb年龄：对海南岛海西-印支期构造演化的制约

Zircon SHRIMP U-Pb Age Dating of Garnet-Acmite Syenite : Constraints on the Hercynian-Indosinian Tectonic Evolution of Hainan Island

赣南全南正长岩的SHRIMP锆石U-Pb年龄及其对华南燕山早期构造背景的制约

SHRIMP U-Pb zircon age of the Quannan syenite , southern Jiangxi : Constraints on the early Yanshanian tectonic setting of SE China

本文着重讨论硬玉钙霞正长岩的岩石学、矿物学、岩石化学、REE地球化学、时代及岩石成因。

This paper stresses the study on the petrology , mineralogy , petrochemistry , REE geochemistry , age and petrogenesis of the jadeite-cancrinite syenite .

糜棱岩化-绢云母化对东秦岭方城正长岩中锆石U-Pb体系的影响滇西点苍山高温糜棱岩显微构造和流动机制研究

Mylonitization and hydrothermal alteration impacts on U-Pb system of zircons : A case study of Fangcheng syenites in eastern Qinling Orogen

与稀土矿化共生的萤石显示不同的稀土配分模式，但是它们具有一致的Sr、Nd、Pb同位素比值，与碳酸岩和正长岩相似。

Fluorites associated with REE mineralization display different REE distribution patterns , but their Sr , Nd , Pb isotopic ratios are uniform , and are similar to those of carbonatites and syenites .

基于实验岩石学成果，论述了无负Eu异常的中酸性火成岩类（正长岩、二长岩、石英闪长岩类）形成于加厚陆壳底部（或山根带）。

Based on the data from experimental petrology , the acid-intermediate igneous rocks ( synitic , monzonitic , QY-dioritic ) without negative Eu-anomaly seem to have formed at the base of thickened crust or in the mountain root zone .

从U、Se、V、Mo和Re等元素含量在单个钻孔及钻孔剖面中变化特征可知东胜砂岩铀矿经历过氧化作用成矿。该矿床赋存于石英正长岩体外接触带侏罗系长石石英砂岩中。

According to the mineralogy analysis , the sandstone of ore-bearing stratum is confirmed on lithic arkose . The uranium deposit occurs in the Jurassic arkose sandstone being located in the exocontact zone of quartz-syenite intrusive body .

冀北甲山正长岩的矿物学、地球化学及Sr-Nd同位素特征

Mineralogy , Geochemical and Sr and Nd Isotopic Characteristics of the Jiashan Syenite in Northern Hebei

霞石正长岩同位素锆石U-Pb年龄为248.7Ma±2.6Ma，相当于早三叠世晚期。

The nepheline syenite has a zircon U-Pb age of 24.87 ± 2.6 Ma , indicating a late Early Triassic age .

硅烷偶联剂-PMMA复合接枝包覆绢云母及其改性机理糜棱岩化-绢云母化对东秦岭方城正长岩中锆石U-Pb体系的影响

RESEARCH ON GRAFT COPOLYMERIZATION MECHANISM OF SERICITE WITH SILANE COUPLING AGENT AND PMMA Mylonitization and hydrothermal alteration impacts on U-Pb system of zircons : A case study of Fangcheng syenites in eastern Qinling Orogen

该岩浆混合杂岩体中偏酸性端员肉红色角闪石石英正长岩中颗粒级锆石UPb定年结果表明，其形成时代为445±4Ma，反映为加里东期产物；

The single zircon U-Pb age of the pinkish-color hornblende quartz syenites from the near-acid magmatic end-member is 445 ± 4Ma , indicating that these rocks are Caledonian .

霞石正长岩作为玻璃原料的应用研究

Application Research of Using Nepheline Syenite as Raw Material for Glasses

湖北某地石英-正长岩中的铁硅钛铈矿

Iron chevkinite in quartz syenite from a certain district in Hubei

霞石正长岩综合利用生产化工产品工艺计算

Process calculation of chemical products derived from comprehensive utilization of nepheline-syenite

卢氏县钾长石矿是一种白云母正长岩。

The potassium feldspar ore from Lushi county is muscovite syenite .

实验的岩石有花岗岩、玄武岩、正长岩和片麻岩。

The experimental rocks were granite , basalt , syenite and gneiss .

云南个旧霞石正长岩的开发利用

The Exploitation and Utilization of Nepheline Syenite Produced in Yunnan

霞石正长岩高梯度磁选除铁研究

Removal of iron from nepheline-orthoclase by high gradient magnetic separation

塔里木盆地二叠纪正长岩的发现及其地球动力学意义

The discovery of Permian syenite inside Tarim Basin and Its Geodynamic Significance

吉林省永胜霞石正长岩除铁试验研究

On the deironing of nepheline syenite from Yongsheng Village , Jilin Province

云南剑川粗面斑岩-正长岩杂岩体的岩石学特征

The petrographic characteristics of trachyte PORPHYRY-SYENITE complex in Jianchuan county , Yunnan Prov

安庐石英正长岩带的地质和地球化学特征及成因探讨

Geology and geochemical characteristics of the Anqing-Lujiang quartz syenite rock-belt and its genesis

北淮阳花岗岩-正长岩带地球化学特征及其大地构造意义

Geochemistry of the North Huaiyang granite - syenite zone and Its Tectonic Implication

似斑状细粒石英正长岩。结构由细粒中粒似斑状。

Porphyritic fine-grained quartz-syenite . the texture is fine-medium-porphyroid .

与碱性正长岩有关的热液脉型稀土矿床成矿特征

Metallogenic features of rare earth deposits of hydrothermal type related with alkaline syenite

河南嵩县南部碱性正长岩类的岩石特征及构造环境

Petrological characteristics and tectonic environment of ALKALI-SYENITES in the south of songxian , Henan

湖北枣阳石英-正长岩中的环带状锆石研究

A study of zonal structure zircon in quartz syenite from Zaoyang County Hubei Province