pargasite是什么意思

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In this study, Ar-Ar isotope dating of muscovite, hornblende and phlogopite was carried out in order to con.

文章以金云母、角闪石和白云母为测试对象,利用40Ar/39Ar同位素定年的方法,精确厘定了芙蓉超大型锡矿床的形成时间。

To gain a better understanding of the age of gold mineralization and its relationship with the evolution of the ductile shear zone,40Ar/39Ar plateau age analysis was made on biotitefrom biotite-quartz gneiss and on hornblende from biotite-hornblende mylonite.

对采自十八顷毫金矿区的黑云母、角闪石用阶段升温法进行40Ar／39Ar年龄谱研究，结合矿区地质特征，认为黑云母近似直线年龄谱的坪年龄（277Ma）及角闪石稳定坪年龄（288Ma）代表了韧性剪切带最新活动的时代；角闪石矿物年龄谱反映的后期热扰动（268Ma）反映区域退化变质作用发生的时代，269～277Ma的年龄可能代表了与退化变质同时的金矿化时代。

Based on the characteristics of hornblendes, we classified the alkali granitoids as two types.

角闪石的种类、化学组成、微量元素特征显示所研究的碱性花岗岩分为两类 :达拉布特型和恰库尔特型。

Crystallographic preferred orientation of amphibole in retrograded eclogites;

退变质榴辉岩中角闪石的组构特征

On the basis of petrography and mineral chemistry of the xenoliths,the amphiboles in them can be subdivided into four kinds of occurrences,i.

对该类捕虏体的岩相学和矿物化学研究表明,其中的角闪石具有4种产状:1)位于石榴石中的早期角闪石包裹体,为镁质普通角闪石;2)与榴辉岩中矿物平衡存在的原生角闪石,为韭闪石或韭闪石质普通角闪石;3)位于石榴石和单斜辉石周边的退变角闪石,主要为浅闪石质和阳起石质普通角闪石;4)沿单斜辉石解理分布的出溶角闪石,主要为浅闪石、浅闪石质角闪石和含亚铁韭闪石质普通角闪石。

As one of major mineral phases in the intermediate-mafic intrusions in Southern Taihang Mountains, amphibole can be used to constrain its petrogenesis.

角闪石作为南太行山地区中基性侵入岩中主要组成矿物,其详细的成因矿物学研究对了解该套岩石的形成机理具有重要意义。

The ZBJ hornblende,as K-Ar age geostandard of China,was sampled from the Fangshan granodiorite in southwestern Beijing.

为了满足K-Ar定年中K和40Ar*分析的质量监控及Ar-Ar法样品在反应堆照射时中子通量监测的需要,我国氩同位素年代学工作者研制了一个K-Ar法年龄标准物质ZBJ角闪石,它采自北京房山花岗闪长岩体。

The hornblendite in Danailingou, with clear cryptoexplosion brecciated structure and mi-crolitic texture, occurs within Jurassic intermediate to acid volcanic rocks in a vein shape.

内蒙古克什克腾旗同兴乡大乃林沟角闪石岩呈脉状产于侏罗纪中酸性火山岩中,具明显的隐爆特征,晶洞构造发育。

This paper chooses the Yaogou hornblendite body, one of the two major ultramafic outcrops in the Laiyuan batholith, as a representative to carry out detailed research.

以窑沟橄榄辉石角闪石岩岩体为代表 ,研究了涞源岩基中超镁铁质岩石。

A chiefly amphibole rock with minor plagioclase and little quartz.

角闪岩主要由角闪石、少量斜长石和石英组成的岩石

Hornblende bearing varieties bridge the gap over to amphibolites which are in bands and dikes.

含角闪石的变种填补了带状和脉状角闪岩的中间相。

Olivine has been completely altered to serpentine, talc, and amphibole in the bore-hole examined in detail.

钻芯详细检查的结果，橄榄石全部蚀变为蛇纹石、滑石及角闪石。

Any of a large group of structurally similar hydrated double silicate minerals, such as hornblende, containing various combinations of sodium, calcium, magnesium, iron, and aluminum.

角闪石一大类结构相似的水合双硅酸盐矿石，如角闪石，包含各种钠、钙、镁、铁和铝的组合

Any of various altered basic igneous rocks colored green by chlorite, hornblende, or epidote.

绿岩因含有绿泥石、角闪石或绿帘石而呈绿色的任一种变质火成岩

Both the core and the mantle have inclusions of biotite, hornblende, quartz and plagioclase.

内核和外壳中均发育石英、斜长石、黑云母、角闪石等矿物的包裹体 ;

Amphiboles From Basic Metamorphic Rocks in the Archeozoic Taihua Group and its Genetic Significance

太古代太华群基性变质岩角闪石及其成因意义

A Study of Amphibole from the Ophiolites in Shangnan-Danfeng Area, East Qinling

东秦岭商丹地区蛇绿岩中的角闪石研究

Ar Diffusion Experiment for Water-Containning Biotite and Amphibole

含水黑云母和角闪石中的氩扩散实验研究

Amphiboles are related to the pyroxenes, forming double chains, again being held together by cations.

角闪石类与辉石类有关，构成双链，也是被阳离子联系在一起的。

Study on the Geneses and Sources of Pyroxene and Amphibole in the Offshore Sediments Around Hainan Island;

海南岛近海表层沉积物中辉石与角闪石的成因及物源研究

The Minnesota work on kaersutite also showed the presence of the isotope neon-21.

明尼苏达大学关于钛角闪石的研究表明，其中也存在同位素氖－21。

CHEMICAL FEATURES AND GEOLOGICAL; SIGNIFICANCE OF AMPHIBOLE IN EARLY PRECAMBRIAN METAMORPHIC ROCKS OF NORTH CHINA PLATFORM

华北地台早前寒武纪变质岩系中角闪石的化学组分特征

a necklace glittering with diamonds

闪闪生辉的钻石项链.

Diamonds sparkle in the light.

金刚石在光中闪闪发光。

Study on Metamorphism of Eclogites and Garnet Amphibolites from the Tongbaishan Area;

桐柏山地区榴辉岩与石榴角闪岩的变质作用研究

Flow and Deformation Mechanisms of Hornblende Rocks from the Paleoproterozoic Fold Belt in Liaodong Peninsula;

辽东古元古宙褶皱带变质角闪质岩石的流动与变形机制

epidote-tremolite schist

绿帘石-透闪石片岩