Ureilites are ultramafic magmatic rooks and they exhibit some characteristics of both primitive and differentiated achondrites.
本文主要综述单矿和复矿碎屑橄辉无球粒陨石的矿物-岩石学特征及冲击变质效应,并依据Δ17O,δ13C,mg#[MgO/(MgO+FeO)mol%],稀有气体,辉石丰度及辉石类型讨论橄辉无球粒陨石的分类和成因模式。
of or related to an achondrite.
无球粒陨石的或与之相关的。
GR99027 meteorite from Blue Ice Area in Antarctica is an achondrite.
来自南极格罗夫山蓝冰地区的GR99027陨石为一无球粒陨石。
INSPIRATION FROM STUDY OF ANTARCTIC METEORITES Ⅷ:?PRIMITIVE ACHONDRITES AND THEIR ORIGIN
南极陨石研究的启示Ⅷ:原始无球粒陨石及其成因
A stone of meteoric origin characterized by chondrules.
球粒陨石以粒养体为特征的陨石
LL group chondrite
低铁低金属群球粒陨石
This, too, is the case for the ordinary-and carbonaceous-chondrite groups.
而对普通陨石和碳质球粒陨石也都是如此。
having a granular structure like that of chondrites.
有像球粒状陨石一样的粒状结构。
Classification of 104 Meteorites Collected in Grove Mountains, Antarctica, and a Comparative Study of Ca-, Al-rich Inclusions (CAIs) from Various Groups of Chondrites;
南极陨石分类及不同球粒陨石群中富Ca、Al包体对比研究
Fine-Grained Rim(FGR) of Carbonaceous Chondrites:Witness to the Evolution of the Solar Nebula
碳质球粒陨石细粒边(FGR):太阳星云演化的见证
The Distribution of Elements in the Metal Phase of Some Chinese Ordinary Chondrites
我国某些普通球粒陨石金属相的元素分布
Thermoluminescence and Thermal History for some Chinese Ordinary Chondrites;
部分中国普通球粒陨石的热释光与热历史
Chondrules are frozen droplets of once-liquid rock.
陨石球粒是由一些曾经液化的石头凝固而成的小滴。
The Petrography,Mineral Chemistry of 6 New Unequilibrated Ordinary Chondrites Collected from the Grove Mountains,Antarctica
南极格罗夫山6块非平衡型普通球粒陨石的矿物-岩石学特征
That chondrules formed in such quantities suggests that the heating which created them was widespread.
这么大量的陨石球粒的形成说明能使它们形成的热量的范围很大。
It was the study of chondrites that allowed researchers to work out how old the solar system is.
研究者通过研究球粒状陨石而得出太阳系的年龄。
A tiny particle of meteoric dust, especially one of many that fall to the surface of the earth or moon.
微陨星微小的陨星颗粒，特指大量坠向地球或月球表面的微陨星
small granule (of e.g. chrysolite) found in some meteoric rocks.
一些陨石中发现的细小微粒（如贵橄榄石微粒）。
The spherical particles are swept as droplets or volatilized and recondensed from a meteorite as it is heated to incandescence by friction in the upper atmosphere.
球形粒子是由小滴吹刮或者由在高层大气中被摩擦加热到白炽化的陨石挥发并重新凝结而成。