伟晶岩的

Based on the petrological and geochronological study of metamorphic complexes from the Grove Mountains, the following conclusions are reached.(1)Exsolution texture is widely found in clinopyroxene in mafic granulites. A peak metamorphic temperature of 850 C was obtained from the reintegrated compositions of exsolved clinopyroxene. The preservation of augite megacrysts suggests a single episode of high-grade metamorphism for the Grove Mountains.(2)The compositional comparison of garnet from pegmatites with that from country rocks demonstrates that garnet in pegmatites is of xenocryst origin, and late amphibolite facies metamorphism does not occur in this area.(3)The Pan-African charnockite and post-tectonic sheet-like granite were first recognized in East Antarctica. Their occurrences suggest a collisional orogeny during the Pan-African time.(4)The SHRIMP U-Pb zircon dating on various rock types indicates that the major metamorphism in the Grove Mountains occurs at c. 550 Ma, and the tectonothermal evolution terminated at c. 500 Ma. The Grenvillian granulite facies metamorphism did not develop in the studied area.(5)The Prydz belt, the second Pan-African suture within the Gondwana suppercontinent, was further comfirmed based on this study. The Gondwana suppercontinent was not formed by the simply juxtaposition of East and West Gondwana, but by the collision of several blocks during the Pan-African time.

本项目通过格罗夫山地区高级变质杂岩的变质岩石学和同位素年代学研究，获得如下重要认识：（1）发现辉石出溶结构，由此获得峰期变质温度为850 C，并根据火成普通辉石的识别确定该区只存在单相麻粒岩相变质；（2）通过伟晶岩中石榴石斑晶与围岩中石榴石的对比研究提出了石榴石的捕虏晶成因，进而确定该区不存在晚期角闪岩相变质作用；（3）在东南极首次识别出泛非期紫苏花岗岩和后构造层状花岗岩，为泛非构造热事件的碰撞造山成因提供了重要佐证；（4）对不同岩石类型的锆石SHRIMP定年精确地限定了格罗夫山地区主期变质作用发生于泛非期，～550 Ma，热事件结束于～500 Ma，年代学数据没有揭示在该区存在格林威尔期麻粒岩相变质作用的迹象；（5）进一步确认了东南极内部普里兹带的存在，它属于冈瓦纳超大陆内部的第二条泛非期缝合带，据此认为冈瓦纳超大陆并不是由东、西冈瓦纳陆块的简单拼合而成，而是多个不同块体拼合的结果。

The crystallization form of porous glass-ceramics belong to volume crystallization; the parawollastonite which was the main phase was monocline chain structure ZM type wollastonite, with long needle crystal or short rodlike crytal.

为了研究多孔微晶玻璃的保温性能，根据伟晶岩多孔微晶玻璃的内部组成以及孔隙率情况，作者提出了三种热传导的理想等效物理模型，推导出了数学公式，验证了多孔微晶玻璃的导热系数。

In order to find new pegmatite Nb-Ta ore-deposit, it is very important practical-significances to ascertain the host structure characteristics and the relations between the tectonic epochs and ore-forming.

通过查明矿床的容矿构造特征以及构造期次与成矿的关系，对寻找新的铌钽伟晶岩矿床具有重要的实践意义。

Formed hundreds of millions of years ago during the Palaeozoic era, it is believed that the pegmatite rocks found at the location of Alexandrite's discovery in the Urals in Russia and at Narsipattnanm are the same.

她形成于几百万年前的古生代，因此人们有理由相信有俄乌拉尔山脉伟晶岩层中发现的亚历山大石与在娜西帕特拉姆发现的亚历山大石同宗同脉。

It will be helpful for the understanding of a complete process of the petrogenesis and evolution of pegmatites, the impact of voltiles (including H〓O, F, B, P) on the physical prorerties of peraluminous magmatic system, and the fractionation of REE and incompatible elements in the system.

对上述问题的研究和探讨，将有助于了解伟晶岩形成和演化的全过程，有助于了解挥发分对过铝质岩浆体系物理性质以及对REE和其它微量元素地球化学行为影响，这对于理解过铝质岩浆体系成岩、成矿作用过程具有重大的理论和实际意义。

Spodumene is a lithium aluminum silicate. It is a relatively rare pyroxene found mainly in lithium rich pegmatites.

锂辉石是一种锂铝硅酸盐，它是一种相对稀缺的辉石族成员（翡翠与锂辉石属于辉石里最有价值的一员），主要在富含锂的花岗伟晶岩出现。

In the study of infrared radiation character, different species of tourmaline and Draviteoccurring in pegmatites from Hebei that are different in granularity and heattreatmenttemperature are chose for infrared radiation ratio testing. The result shows:The infraredradiation ratio of tourmaline powder is above 0.80 when the surrounding temperature is 20℃and the testing temperature is below 100℃;Schorl has a close infrared radiation ratio to Dravite,which is higher than Elbaite;No matter to Dravite or Schorl, as the content of ferric oxideincreases, the infrared radiation ratio decreases;tourmaline's size is smaller, its infraredradiation ratio is higher;after tourmaline is heat-treated under 800℃, its infrared radiation ratiodeclines;Dravite heat-treated at 800℃ has the highest infrared radiation ratio, 0.90;andDravite's structure suffers from destruction above 900℃ heattreatment, so its infrared radiationratio goes down.

在红外辐射特性的研究中，本文选择了不同种属电气石、不同粒度和不同热处理温度河北伟晶岩镁电气石进行红外发射率的测试，结果表明：在环境温度为20℃、测试温度为100℃下，电气石粉体红外发射率均在0.80以上；铁、镁电气石红外发射率相近，且大于锂电气石；不论在铁电气石还是在镁电气石中，随氧化铁质量分数的增加，红外辐射率下降；电气石粒径越小，红外发射率越高；电气石在低于800℃以下温度的热处理后，红外发射率下降，800℃热处理电气石红外发射率最高，为0.90，900℃以上电气石结构遭到破坏，红外发射率降低。

They are mica, lithium beryllium tantalum and gem bearing peg matite, marine volcanic massive sulfide, magmatic copper nickel, metasedimentary iron, gold bearing low grade metamorphosed carbon clastic rocks and gold bearing ductile shear zone. A great progress has been made in recent exploration of porphyry copper.

已知矿床的主要类型有伟晶岩型矿床、与海相火山岩有关的块状硫化物矿床、岩浆铜镍硫化物型矿床、沉积变质型铁矿、浅变质含碳细碎屑岩型金矿和韧性剪切带型金矿床，近年来在斑岩型铜矿床的找矿工作有了新进展。

The saccharoidal albite zone, the second zone of Altay No. 3 pegmatite, is composed of two different fabric rocks from the field observation, and is a main zone for deposition of beryllium, phosphrus and rare-earth elements.

阿尔泰3号伟晶岩脉糖粒状钠长石带明显由两种不同组构的岩性组成，而且该带是3号脉主要的Be矿化带，也是P、REE最重要的沉淀场所。

The average contents of phosphrus in alkali feldspars in both comb zone and the first intermediate zone are high, in the range of 0.42-0.22wt%, and gradually increase from 0.21wt% to 0.50wt% as the magma evolves from the third intermediate zone to the core zone. The abnormally low content of phosphrus (＜0.10wt%) in alkali feldspar from the saccharoidal albite zone is considered due to the crystallization of apatites, which gives rise to extreme depletion of phosphrus in residual melt.

阿尔泰3号伟晶岩脉梳状结构带和Ⅰ带的碱性长石具较高P含量(平均值分别为0.42wt％和0.22wt％)，随着岩浆的演化进行，从Ⅲ带到核部带，碱性长石中P含量逐渐增大(平均值由0.21wt％增至0.50wt％)，而Ⅱ带碱性长石中异常低的P含量(平均值为0.08wt％)是该带大量磷灰石矿物饱和结晶，导致残余熔体相中P极度亏损所造成的，而不是晚期出溶的岩浆热液交代形成的。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。