褐帘石

X-ray diffraction, infrared spectrum, Mossbauer spectrum, and absorption spectrum have been used to study allanite in some rare-earth deposit in this paper.

本文采用晶体场谱、穆斯堡尔谱、红外光谱和X射线衍射等多种手段研究褐帘石的谱学特征。

In contrast, an age of 220 ±41Ma for the allanite mantle was obtained, and is interestingly similar to the Dabie-Sulu UHP metamorphic age.

因此，褐帘石与磷灰石和钍石一起应该为超高压变质事件的产物。

The crystal-chemical properties and the genesis of the allanite have been disscussed, in addition, the radioative decay of Th and U and the oxidation cause rare-earth elements to be released from its lattice to d...

认为本区的褐帘石是部分变生的。变生的机理是因为其晶格中含放射性元素U，Th高，且这与褐帘石的选矿性能有重要关系。

This paper reported composite grains of epidote, allanite, apatite and Th-silicate in eclogite taken from this deep drillhole.

本文报道了该钻孔榴辉岩存在发现的绿帘石、褐帘石、磷灰石和钍石复合颗粒。

Basing upon the standard and combine with Hunan Reconnaissance Institute ofGeoscience' investigate case the author does systematically research on the allanite inthe Qitianling , Chenzhou, Hunan province as example, and described it according tothis mineral specimen resource describing standard.

在该矿物标本资源描述标准的基础上，结合湖南地勘院地调项目的研究，对湖南省郴州白腊水矿区锡铅锌矿中发现的褐帘石进行矿物学的系统研究，并按照所制定描述标准进行了数字化表达。

They are always characterized by concentric zoning texture, from the rim inward, consisting ofepidote, allanite and apatite; micro-inclusions of thorite are found within both apatite and allanite.

它们以同心环带结构为特征，从边部向中心依次为绿帘石、褐帘石和磷灰石；钍石既可包裹再磷灰石中，也可见于褐帘石中。

The Dashankeng gneiss located in the northeastern Dabie mountains is composed mainly of potassium feldspar, plagioclase and quartz with minor hornblende, biotite and allanite, belonging to monzonitic granitic in composition.

北大别东部大山坑片麻岩主要由钾长石、料长石和石英组成，少量角闪石、黑云母和褐帘石，成分为二长花岗质。

Major conclutions from this study can be summarized as following:1. On mineralogy, rutiles, apatites, epidotes and vein minerals from UHPM rocks were firstly and systematically studied, by detailed petrography and mineral-chemistry investigation, some mineral or mineral assemblage with special composions or texture were firstly found in UHPM rocks from Sulu-Dabie, for example, corrudum, magnesite, high-Ti biotite and garnet were found as inclusions in rutiles from eclogites, Nb-Fe rutile and zoned Si-Y apatite were found in gneiss, epidote / allanite with euhedral zones like magmatic genesis were found in elogites and gneiss, a lot of minerals with high REE, HFSE, LILE and volatiles were found in veins of gneiss.

在矿物学方面，首次较为系统地研究了超高压变质岩中的金红石、磷灰石、绿帘石等副矿物，并通过详细的岩相学和矿物化学研究，首次在苏鲁-大别超高压变质岩中发现了一些具有特殊成分/结构的矿物或矿物组合，如在榴辉岩金红石中发现了刚玉、菱镁矿、高钛黑云母和石榴石矿物包裹体，在片麻岩中发现了Nb-Fe金红石和具有自形环带结构的高Si-Y磷灰石，在榴辉岩和片麻岩中发现了具有类似岩浆成因的自形生长环带结构的绿帘石/褐帘石，在片麻岩的脉体中发现了大量富含稀土元素REE、高场强元素HFSE(Nb、Ta、Zr、Ti)、大离子亲石元素LILE(K、Th、U、Sr、Ba)，以及挥发性组份(CO_2、F、P、S)的特殊矿物，丰富并提升了超高压变质岩的矿物学研究。2。

Ago a kind of misconception that the rare earth metals is very scarce in nature, in fact not the case, many of which elements such as lanthanum, cerium, praseodymium, neodymium and samarium in accordance with their distribution in nature is no less well-known people in some of the elements of industry, common There ore monazite, scandium yttrium stone, silicon and cerium stone, stone and brown curtains and other fluorocarbon calcium cerium ore.

以前有种错误概念，认为稀土金属在自然界很稀少，其实不然，其中很多元素如镧、铈、镨、钕和钐按其在自然界的分布不次于人们在工业上熟知的某些元素，常见的矿石有独居石、钪钇石、硅铈石、褐帘石和氟碳钙铈矿等。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。