导图社区 The Allende Meteorite
托福阅读关于陨石的的形成和成分
社区模板帮助中心，点此进入>>
英文雅思大作文的命题类型和写作框架总结！
G类小作文书信写法
六级高频单词
英语学习p字母相关的单词
系动词be的语法
48个国际音标标准学习
topic
雅思听力临考前策略
学习类-英语四级基础语法 思维导图
常用的连接词(组)
The Allende Meteorite
origin/initial/prime
time
Feb 8,1969
feature
large and lbright
process
broke and scatter
location
Allende
Individual specimens
apeearence
when entered the atmosphere
with a black and glassy crust
when broke up
mixture of small, distinctive objects, spherial, irrgular
name
infer them contained tiny seed/chondrules
formation
glss and crystal of silicate
conditions
melted at 1700 degrees and cooled
compositions
refractory inclusions
paradox of the order
chondrite matrix
dine-grained,mostly silicate minerals
by condensation and melting
compared with the sun
not abundances but the ratio is same
