这些种子实际上是陨石球粒：冷却后变成玻璃球和水晶球的毫米级熔融状硅酸盐小液滴。
These seeds are actually chondrules: millimeter-sized melted droplets of silicate material that were cooled into spheres of glass and crystal.
曾经有人认为，这些基质颗粒可能是原始的星云尘埃，即形成陨石球粒及其内含物的物质。
At one time it was thought that these matrix grains might be pristine nebular dust, the sort of stuff from which chondrules and inclusions were made.
阿连德陨石中同样令人困惑的成分是那些耐高温的内部物质：往往比陨石球粒要大的不规则白色块状物。
Equally perplexing constituents of Allende are the refractory inclusions: irregular white masses that tend to be larger than chondrules.
对陨石球粒质地的研究证实，它们的冷却速度相当快，短则几分钟，长则数小时，因此形成陨石球粒的高温活动肯定是局部的。
Study of the textures of chondrules confirms that they cooled rather quickly, in times measured in minutes or hours, so the heating events that formed them must have been localized.
阿伦德陨星里的陨石球粒和内含物是由球粒陨石基质结合到一起的；这是一种细粒混合物，主要包括铁颗粒和硫化铁的硅酸盐矿物。
Chondrules and inclusions in Allende are held together by the chondrite matrix, a mixture of fine-grained, mostly silicate minerals that also includes grains of iron metal and iron sulfide.
得出最老的陨石球粒的年龄，你就可以知道太阳是什么时候开始燃烧的。
Work out how old the oldest chondrules are, and you know when the sun ignited.
观察这些同位素可以估算出陨石球粒的年龄，他们是在45.6亿年前形成的。
Looking at these isotopes allows the chondrules to be dated, and they were formed 4.56 billion years ago.
这意味着它们含有直径数毫米的球形岩球（或叫做陨石球粒，chondrule）。
That means they contain spherical nodules a few millimetres across, known as chondrules.
体积较小的小行星只不过是一些尘埃和陨石球粒的堆积物，其中这些圆状岩石形成于太阳早期高热量下融熔的尘埃。
Small asteroids are often little more than piles of dust and chondrules, the spherical pebbles of rock that formed from dust which melted in the heat of the young sun.
从陨石推断和经过电脑软件确认可行,行星的形成过程应该如此.首先,灰尘微粒聚集在一起形成宇宙尘球.早期太阳的热量爆发将这些尘球熔化,它们因此固化为陨石球粒.
First, dust particles clumped together to form cosmic dustballs. Bursts of heat from the primitive sun melted the dustballs, which solidified into chondrules.
所有这些不同的成分聚集形成像阿连德一样的球粒陨石，具有很类似于太阳的化学成分。
All these diverse constituents are aggregated together to form chondritic meteorites, like Allende, that have chemical compositions much like that of the Sun.
阿连德陨石被归类为球粒陨石。
陨石进一步细分为两类：球粒状陨石和无球粒陨石。
Aeroliths are further subdivided into two classes: chondrites and achondrites.
氪在今天的大气层中比太阳能的氪更重一些，这些氪比埋入了陨星，也就是通常熟知的碳质球粒状陨石中的氪还有重很多。
Krypton in today's atmosphere is somewhat heavier than solar krypton, and the krypton embedded in meteorites known as carbonaceous chondrites is even heavier than that.
研究者通过研究球粒状陨石而得出太阳系的年龄。
It was the study of chondrites that allowed researchers to work out how old the solar system is.
陨石通常分为两类：球粒陨石（chondrites）和非球粒陨石（achondrites）。
Meteorites generally fall into one of two categories—chondrites and achondrites.
他有两方面的证据：第一，现存的灾难性撞击的残骸与Baptistina和她的后代有相同的成分，这是必要条件，但并非充分条件，因为含碳的球粒状陨石在其它小行星上也有；
That is a necessary but not a sufficient condition, as the type of rock involved, called carbonaceous chondrite, is found in other asteroids, too.
近年来在南极及澳大利亚、非洲和北美的沙漠地区发现和回收了大量的陨石，改变了以前的球粒陨石分类。
The large number of meteorites from Antarctica and the desert areas of Australia, Africa and North America changed the previous chondrite classification in recent years.
而对普通陨石和碳质球粒陨石也都是如此。
This, too, is the case for the ordinary-and carbonaceous-chondrite groups.
碳质球粒陨石星子被吸积于原始地球上地幔表层，形成原始富碳区。
Carbonaceous chondrite planetesimals were adsorbed on the mantle surface of the primitive earth, forming primitive carbon-rich areas.
采用仪器中子活化方法分析了宁强碳质球粒陨石基质及暗色边化学成份。
The chemical compositions of the Ningqiang carbonaceous chondrite matrix and a dark rim are analysed with instrumental neutron activation method.
根据这些玻璃质微球粒的物理、表面结构构造及常量元素等特征，可认为是微玻璃陨石。
These spherulites are identified as glassy microtektites by their surficial texture, physical and optical properties, and common element contents.
普通球粒陨石和碳质球粒陨石中的亲石元素在顽火辉石球粒陨石内显示亲铜或亲铁的性质。
The lithophile elements in ordinary and carbonaceous chondrite groups may display either chalcophile or siderophile nature in enstatite chondrites.
从球粒陨石的酸不溶残渣中分离出了携带有惰性气体同位素异常的金刚石、碳化硅和石墨颗粒。
The diamond, SiC and graphite grains with isotopic anomaly of noble gas are separated from original residue of chondrites.
来自南极格罗夫山蓝冰地区的GR99027陨石为一无球粒陨石。
GR99027 meteorite from Blue Ice Area in Antarctica is an achondrite.
我们样品的平均成分水平在某些方面与CI球粒 陨石不同：即我们发现有较多的锌、镓和铜及较少的硫。
The average composition for our sample is different in some ways from the CI chondrite meteorites: namely we found more zinc, gallium, and copper, and less sulfur.
球粒陨石的或与之相关的。
庐江陨石是一化学岩石类型为LL6的球粒石陨石。研究表明该陨石中不透明矿物有铁纹石、镍纹石、陨硫铁、铬铁矿、钛铁矿和赤铁矿等。
The Lujiang meteorite, a chondrite whose petrochemical type is LL6, contains the following opaque minerals: kamacite, taenite, disordered taenite, troilite, chromite, hematite, ilmenite. etc.
庐江陨石是一化学岩石类型为LL6的球粒石陨石。研究表明该陨石中不透明矿物有铁纹石、镍纹石、陨硫铁、铬铁矿、钛铁矿和赤铁矿等。
The Lujiang meteorite, a chondrite whose petrochemical type is LL6, contains the following opaque minerals: kamacite, taenite, disordered taenite, troilite, chromite, hematite, ilmenite. etc.
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