陨石

The peak metamorphic minerals are garnet, omphacite,phengite and rutile with temperature of～500℃,pressure of～2.3Gpa.On the basis of geochemical analysis,the content of SiO2 in the eclogite ranges from 46.68%to 50.24%,Na2O+K2O 3.10～4.21%,and high REE with enriched LREE, LREE/HREE of 2.83～6.06.The REE pattern and trace element spidergram are similar with those of ocean island basalt,according with the blueschist from Longmucuo -Shuanghu suture zone.The protolith of the eclogite and blueschist are OIB,and they aremaybe the result of subduction of Permian OIB in central Qiangtang area.

对棉辉岩的地球化学分析显示，榴辉岩SiO_2含量在46.68—50.24%之间，Na_2O+K_2O含量在3.10—4.21%之间，稀土元素总量较高，轻稀土富集，重稀土相对亏损，LREE/HREE比值在2.83—6.06之间，稀土元素球粒陨石标准化曲线呈向右倾斜的样式，微量元素原始地幔标准化蛛网图OIB类似，这些特征和龙木错—双湖高压变质带的蓝片岩类似，它们的原岩为均为洋岛型玄武岩，形成环境类似于现在太平洋中的夏威夷，榴辉岩、蓝片岩很可能是羌塘中部地区出露的二叠纪洋岛型岩石俯冲消减的产物。

This site, by Larry Nittler of the Carnegie Institution of Washington, gives an overview of the study of presolar grains in meteorites.

该站点介绍了在太阳系形成以前时的红巨星和超新星粒子，这些粒子通过陨石来收集到，该网页是由美国华盛顿卡内基学会Larry Nittler先生创建的。

Isotopic anomaly ; presolar grain ; meteorite

同位素异常；太阳系外物质；陨石

The team ultimately collected some 280 small meteorites, now called Almahata Sitta, with a total mass of about 5 kilograms -- the first material recovered from a known asteroid.

团队最后找到大约280块陨石碎片。这个小行星现在被命名为 Almahata Sitta ，总质量约5kg——第一个找到实物的已知小行星。

These subvolcanics, in which basalt, basaltic andesite and andesite are dominant, are petrochemically of calc alkaline affinity of subalkaline series and sodic type, and tend to have moderate low total REE, being LREE enriched.

岩石化学上属亚碱性系列、钙碱性火山岩系、钠质类型；稀土总量中低，属轻稀土富集型，稀土分布模式为右倾平滑曲线或略有正、负铕异常；过渡族元素球粒陨石标准化曲线形态呈&W&型，锶初始值为 0 。70 5398，反映物质来源较深。

But, for the Type 3 of unequilibrated meteorites, its difficult to determine their chemical groups exactly as the mineral composition varies in a large range and probably there is water in the meteorites.

对于岩石类型为第3类的非平衡陨石，由于矿物成分变化较大，并可能有水等易挥发成分的存在，其化学群的划分不易确定。

Ashes of the coals with different ages and coal ranks from different localities of Guangxi were analysed for their rare-earth elements. The chondrite-normalized diagram of unmetamorphosed coal shows a v-shaped curve inclining towards the right.

广西不同产地、不同时代、不同煤种的煤灰稀土元素分析结果表明，未变质煤的球粒陨石标准化图呈右倾斜&V&型曲线，北美页岩标准化图呈近水平直线，煤中稀土元素没有发生分离和迁移。

Unsummoned infernals arrive through weaknesses in the cross-planar boundaries, crashing to Azeroth in devastating meteoric impacts.

如果没有人召唤，那地狱火会尝试在位面之间的障壁脆弱时强行突破，再以具有极大杀伤力的陨石形态坠落到艾泽拉斯。

Flyingat superspeed, he zigged and zagged in the air above Metropolis, melting smaller meteors with heat vision, smashing larger ones into dust with his fists. He ignored the meteors that would fall into the ocean and concentrated on destroying the ones that threatened the city.

他超速飞行在大都上会上空，不停地急转着，用热视力熔化较小的陨石；用他的拳头把更大那些击成尘土；并且忽略那些将坠入海洋的石块，集中精力毁掉威胁城市的那些。

Some of these chemicals are thought to have come from a planet-forming disk of gas and dust that swirled around our young sun. Meteorites carrying the chemicals might have crash-landed on Earth.

部分有机物被认为来自围绕我们原始太阳的原始行星盘中的气体和尘埃，落在地球的陨石群带来另外一些有机物。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。