碱性长石

碱性长石中Fe~（3+）在四面体位置间交换动力学的EPR研究

EPR study on exchange kinetics of fe ~ ( 3 + ) over the tetrahedral positions in alkali feldspar

在加热条件下，利用EPR方法研究了碱性长石中不同四面体位置间的Fe~（3+）、Al~（3+）交换。

Under heating conditions the exchange of Fe ~ ( 3 + ) and Al ~ ( 3 + ) over the tetrahedral positions in alkali feldspar has been studied using EPR .

通过花岗岩-HF-H2O体系的熔化-结晶实验，在570～700℃、100MPa条件下获得了与淬火玻璃共存的石英+碱性长石+云母+萤石的矿物组合。

A mineral assemblage of quartz + alkali feldspar + mica + fluorite , coexisting with melt phase , is obtained in the melting crystallization experiments above solidus in the F rich granite HF H2O system at 570 ~ 700 ℃ and 100 MPa .

碱性长石微结构特征与岩体冷却速率的关系

Relationship between microstructures of alkali feldspar and the cooling rate of rocks

丹东地区花岗岩类岩石中碱性长石斑晶成因初探

Alkali-feldspar Phenocrysts of the Granitoids in Dandong Area , China

该矿床为碱性长石花岗岩型钽矿床。

The deposit is an alkali-feldspar granite type Ta deposit .

碱性长石中的微孔及微裂隙特征研究

Characteristic Research of Micropores and Microcracks in Alkali Feldspar

碱性长石流体的氧同位素交换机制主要是溶解再沉淀。

The mechanism of oxygen isotope exchange between alkali feldspar and fluid is mainly dissolution reprecipitation .

天然碱性长石的高分辨电镜观察

HREM observation of natural alkali feldspar

花岗质岩石主要由石英、斜长石和碱性长石组成，并因此具有较低的密度。

Granitic rocks mainly consist of quartz , plagioclase and alkaline feldspar and hence have lower densities .

测定碱性长石有序度的红外光谱法、X光衍射法和光学方法的对比

The comparison of different methods ( infrared spectrum , X-ray diffraction analysis and optical analysis ) for determining the order-degree of alkali-feldspar

石英和黄玉的温度稳定域上限升高，碱性长石的温度稳定域上限降低；

The maximum temperature of the quartz and topaz stability field increased with increasing F content , whereas that of alkali-feldspar decreased .

本区富钾火山岩中浅色矿物有碱性长石、白榴石和霞石。

The light - colored minerals of K - rich volcanic rocks in this area are alkaline feldspar , leucite and nepheline .

含金矿脉中主要矿物共生组合为碱性长石、石英、斜长石、碳酸盐矿物（方解石、白云石）和少量金属硫化物。

The general mineral assemblage of mineralized lodes is alkali feldspar + quartz + plagioclase + carbonate ( calcite and Fe-dolomite etc ) .

结果表明：透辉石替代10%左右碱性长石可以明显提高坯体的密实度和颗粒配位数，有利于烧结过程中坯体的致密化。

The study result shows that use approximately 10 % diopside to replace alkali feldspar can significantly enhance the compactness of green bodies during agglomeration .

通常，花岗岩被定义为由石英（>20%，体积百分比）和长石（碱性长石大于斜长石）组成的深成岩。

Generally , the term granite is defined as a pluton which consists of quarts ( > 20vol % ) and feldspar ( alkaline feldspar > plagioclase ) .

本文采用电子显微探针分析了共生碱性长石和斜长石的化学成分，并采用三元二长石温度模型估计了碱性长石的平衡温度。

On the basis of the microprobe analyses for coexisting alkali feldspar and plagioclase , the equilibrium temperatures of the alkali feldspars are calculated using several ternary two-feldspar geothermometers .

自然界碱性长石调制结构及复结构的研究四、赣东北地区火山碎屑岩中

A Study of Modulated Structures and Complex Structures in Natural Alkali Feldspars :ⅳ . Studies on Complex Structures of Alkali Feldspars of Volcaniclastic Rocks in the Northeast Part of Jiangxi Province

苏北海州群云台组上段变火山岩富含碱性长石（60-70%）和钾长石（35-60%），黑云母为富铁黑云母，部分火山岩含霓辉石、萤石等。

The metamorphosed volcanic rock of the upper member of the Haizhou group is rich in alkali-feldspar ( 60 to 70 % ) and high potash feldspar ( 35 to 60 % ) .

用此法测定了单斜辉石、碱性长石、斜长石及三元长石的晶胞参数。精度在10~（-3）&5×10~（-4）之间（相对误差）。

Some unit-cell parameters of rock-forming minerals such as clinopyroxene , alkaline feldspar , plagioclase and ternary feldspar have been measured , their accuracies are within 10 ( - 10 ) - 5 × 10 ( - 4 ) .

桐庐和相山杂岩体分别属于同熔型和陆壳重熔型火山－侵入杂岩系列，通过对这两个系列中的斜长石及碱性长石进行了对比研究。

The Tonglu and Xiangshan complexes belong to the volcanic intrusive series of syntexis type and continental crust remelting type , respectively . A comparative study of the plagioclases and alkali feldspars from the two types is done in this paper .

通过对新疆东天山花岗岩类岩石中的角闪石、斜长石、碱性长石、磷灰石、黑云母成分的系统研究，确定花岗岩类岩石在11&17km深处结晶；

Through systematic study of compositions of hornblendes , plagioclases , alkali feldspars , apatites and biotites from granitoids in Eastern Tianshan Mountains , Xinjiang China , it is determined that the granitoids crystallized at the depth of 11 & 17 km ;

山东五莲碱性三元长石的微结构研究

Microstructure of Alkali Ternary Feldspar from Wulian , Shandong

长白山天池碱性熔岩中碱性长石斑晶的X射线研究

X-ray studies of alkali feldspar phenocryst from alkaline lava at tianchi , Changbaishan

蓬莱玄武岩是一种碱性玄武岩，由磁铁矿、橄榄石、普通辉石和碱性长石组成。

Penglai basalt , an alkali basalt , consists of magnetite and those silicate minerals suchas olivine , augite and alkali feldspar .