陨石球粒

There are remarkable differences among chondrite groups in petrographic, mineralogical, chemical and O isotopic characteristics.

不同的球粒陨石群，其岩石学、矿物学、化学及氧同位素组成均有明显的差异。

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.

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。

By optical microscope and electron probe analysis,results of 100 meteorites show that two samples belong to special types,and the others are classified as ordinary chondrite s.

通过光学显微镜观察和电子探针测试，确定其中98块为普通球粒陨石。

These characteristics confirmed further that some features of inclusion, especially their types, in a same subgroup of chondrite are similar.

富杆拦石集合体和富黄长石包体的稀土模式大多数为平坦型，富尖晶石包体NQ-32有Ⅱ型的稀土模式，这些特征进一步证实同类球粒陨石的难熔包体特征，尤其是它们的类别是相似的。

Static high pressure ; dynamic high pressure ; mantle mineral ; chondrite ; phase transition

静态高压；动态高压；地幔矿物；球粒陨石；矿物相变

Petrologic types for the 23 chondrites are ascertained mainly based on the property of chon-drules and matrix structures of the chondrites, as well as the composition of olivines, structures of pyroxenes and characteristics of feldspars, and so on.

陨石岩石类型的确定，主要根据陨石中球粒及基质的特征，参考其它标志，如橄榄石成分、辉石的结构、长石的特征等进行分类，效果较好。

All 23 meteorites studied belong to ordinary chondrites.

系统的研究确定这些陨石均为普通球粒陨石。

We compared what we found in Wild 2 to that found in a specific class of meteorites called "CI chondrites."

我们把在&怀尔特2&中找到的东西同在一类称为&CI 球粒陨石&的特殊陨石中发现的相比较。

On the other hand we also found minerals that seem to be less consistent with CI chondrites and IDPs, and more consistent with yet other classes of meteorites.

另一方面我们也发现与 CI 球粒陨石及 IDPs 似乎不怎么相符，倒是与其它类型的陨石更相合的矿物。

The others include 1 martian meteorite, 1 HED meteorite and 6 L3 ordinary chondrites. These 20 equilibrated ordinary chondrites are classified into chemical groups of H, L and LL, respectively, based on mean Fa content of oli-vine, mean Fs of low - Ca pyroxene and abundance of Fe-Ni metal.

根据橄榄石的平均Fa值、低Ca辉石的平均Fs值和Fe-Ni金属含量将这20块陨石分别划分为H、L和LL等化学群；根据球粒结构、基质重结晶程度和矿物成分对这些陨石进行岩石类型的划分。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。