球粒
- spherulite
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地球的初始物质为分异的铁陨石及H群球粒陨石。
The primitive material of the Earth were the differentiated iron meteorites and H chondrites .
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同一化学群的陨石,变质程度越高吸收谷越深。而地球火成岩反射谱,则依酸性、基性和超基性逐渐显示出H群球粒陨石的反射谱型。
The same chemical group of meteorites feature deeper and deeper absorption valleys with increasing metamorphic grade .
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H型球粒陨石TL灵敏度与冲击相和钾含量的研究
Study on the TL sensitivity , shocking phase and K content of ten h chondrites
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过渡元素球粒陨石标准化曲线,也均呈微向右倾斜的W形曲线。
The transitional element curves standardized by chondrite were all W type curves inclining gently to the right .
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REE球粒陨石标准模式图为富LREE类型,δEu无异常到弱异常。
The chondrite-normalized REE patterns are enriched in LREE with a small Eu anomaly .
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球粒陨石富金属FeNi相的高压熔融实验与地核形成机制的探讨
An experimental study of melting of metal Fe-Ni-RICH phase of chondrite under high pressure and Discussion on Mechanism of formation of the earth core
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不同化学群球粒陨石中CAI的岩石学和矿物化学特征研究。
( 2 ) The study of petrography , and mineral chemistry of Ca - , Al-rich inclusions from various groups of chondrites .
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富碱火山岩的稀土元素组分及球粒陨石标准化型式表明,碱性玄武岩的稀土元素特征亦表现为Eu亏损不明显,轻稀土相对富集。
The REE characteristics and the chondrite-normalized patterns of the alkali-rich volcanic rocks show that there is no significant loss of Eu , relatively enrich LREE .
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稀土元素配分模式上,球粒陨石标准化配分曲线明显右倾,轻稀土元素相对富集,反映出沉积物中等程度的Eu负异常。
In REE distribution patterns , the chondrite-normalized REE partition curve incline to the right , indicate that they are enriched in LREE and middle degree Eu negative abnormity .
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因此,TL灵敏度的测定已用作3型普通球粒陨石,CO、CV球粒陨石和钙长辉长无球粒陨石新的分类方法。
The measurement of TL sensitivity has produced new means of classification for 3 type of ordinary chondrites , CO , CV chondrites and eucrites .
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主要研究了TEOS及催化剂氨水的量对于SiO2胶体球粒径大小和粒径偏差的影响。
Effects of concentrations of ammonia and TEOS on the SiO2 particle size and size deviation were mainly investigated .
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稀土含量特征及球粒陨石标准化模式与岛弧拉斑玄武岩的特征相似,w(∑ree)值高,且富轻稀土,稀土配分模式为右倾型。
The REE distribution patterns with high value of Σ REE , enrichment of LREE and incline to the right are similar to the island-arc tholeiite .
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吉林球粒陨石(H5)的高压声速实验研究
Experimental study on measuring sound velocities of Jilin aerolite at high pressure
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吉林球粒陨石K-Ar年龄与Ar~(38)暴露年龄研究
K-Ar age and ~ ( 38 ) ar exposure age determination of the Kirin chondrite
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一个新陨落的L(65)型球粒陨石广饶陨石
The Guangrao meteorite : a newly fallen l_ ( 6-5 ) chondrite
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(La/Yb)n高达29.82~84.94。钾质火山岩对球粒陨石标准化的REE配分型式均为向右陡倾的LREE富集型。
The ( La / Yb ) n is as high as 29.82 ~ 84.94 . The chondrite-normalized REE patterns are LREE-riched type of dipping steeply to right .
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变质作用通过原始火成玻璃的脱玻作用产生长石,使普通球粒陨石的TL灵敏度增加达105倍。
Metamorphism generates feldspar through the devitrification of primary igneous glass and causes TL sensitivity to increase by a factor of ~ 10 5 in ordinary chondrites .
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稀土元素的球粒陨石配分模式均呈现Eu负异常,模式具负斜率,表明表层沉积物物质主要来源于大陆地壳。
The chondrite-normalized REE patterns of were characterized by the negative Eu ( abnormally ) and the negative gradient , indicating that the main material sources of surface sediments are of matter from the mainland earth crust .
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普通球粒陨石中的CAI均发生了强烈的蚀变,黄长石被细粒蚀变产物集合体所替代。(3)不同球粒陨石群中富Ca、Al包体的对比研究。
All CAIs in the ordinary chondrites are heavily altered , mainly consisting of fine-grained alteration assemblages without melilite . ( 3 ) The comparative study of Ca - , Al-rich inclusions from various groups of chondrites .
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岚皋碱质煌斑杂岩主量元素呈规律性演化,REE球粒陨石标准化配分型式呈强右倾型,富集不相容元素。
The alkali lamprophyre complex from Langao County , whose chondrite-normalized REE patterns all incline to the right and whose major elements vary regularly , has abundant incompatible elements .
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南极GRV98002(L5)和GRV98004(H5)普通球粒陨石的热变质作用
Thermal metamorphism of GRV 98002 ( l5 ) and grv98004 ( h5 ) ordinary chondrites
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讨论了丁二酸改性、悬浊液浓度、胶体球粒径、组装温度、pH值、热处理温度、入射光角度对所得到的SiO2胶体晶体形貌和光子带隙的影响。
Effects of modification , colloid concentration , particle size , temperature , pH value , sintering treatment and incident angle on the morphology and photonic bandgap properties of the obtained SiO2 colloidal crystals were discussed .
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含矿建造中容矿岩石的REE球粒陨石标准化模式是具有中等的Ce负异常和明显的Eu正异常、向右倾的图形,与一些热水沉积物的模式都有相似之处。
The REE chondrite standardized model of the ore-bearing host rock show a middle Ce negative anomaly , obviously Eu positive anomaly and the right dip graphics , which are similar to some hot water sediments model .
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我国南极橄辉无球粒陨石(GRV024516)和H5球粒陨石(GRV024517)宇宙射线暴露年龄和气体保存年龄
Cosmic-ray exposure ages and gas retention ages of ureilite ( grv 024516 ) and ordinary chondrite ( grv 024517 ) from Antarctica
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球粒携带着聚乙二醇分子,聚乙二醇是从轻泻剂到胡椒博士饮料等等产品中都含有的成分,上面覆盖着RGD或稍微长一些的氨基酸链。
The spheres carry molecules of polyethylene glycol an ingredient in everything from laxatives to Dr Pepper tipped with RGD or a slightly longer string of amino acids .
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各种类型的多金属结核PGE和Au的球粒陨石配分曲线及有关参数非常一致,均表现为Pt正异常和Pd负异常,显示其中PGE和Au具有相似的来源。
Different types of nodules have quite similar PGE and Au chondrite_normalized patterns and related parameters , with positive Pt and negative Pd anomalies , indicating that PGE and Au in different types of nodules have the same sources .
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X-Wind模式下对宁强碳质球粒陨石光学特征的重新认识
A New Cognition of Optic Characteristic of Ningqiang Carbon Chondrite with X-wind Model
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本文对它们进行了反光显微镜鉴定、X射线分析、反射率及硬度的测定和电子探针分析,总结了不同化学群的球粒陨石铬铁矿、钛铁矿中FeO、MgO含量变化规律。
These minerals were studied using reflecting microscopy , X-ray analysis , reflectivity and hardness determination , electron microprobe , etc. Variations in FeO and MgO contents of chromite and ilmenite in different chemical groups of chondrites are summarized in this paper .
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富Ca、Al包体(CAI)是太阳星云最早期各种热事件的产物,保存了大量原始星云的信息,是研究星云形成和演化的探针,它们主要出现在碳质球粒陨石中。
Ca - , Al-rich inclusions ( CAIs ) are the earliest assemblages of the solar nebula , and they contain information of early solar nebula . They are the probe of studying the origin and evolvement of early solar nebula , and are mainly found in carbonaceous chondrites .
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TiO2/Al2O3、Zr/Hf、Ti/Th比值属于酸性岩浆范围,球粒标准化稀土元素配分模式和具中至大的Eu负异常类似于花岗岩稀土配分模式。
TiO 2 / Al 2O 3 , Ti / Th and Zr / Hf ratios of the all metabentonites are characterisitic of acidic magmas . Both chondrite normalized REE distribution patterns and middle to large negative Eu anomalies of the metabentonites are similar to those of granites .