Earth's crust; geological structure
Tone colorsmāmámǎmàma
Meanings
1 sense · 5 examplesnoun
Earth's crust; the rocky outer shell of the Earth
formalA specialized term in geology, contrasting with the mantle and core. Its composition is primarily oxygen, silicon, aluminum, magnesium, and iron.
Dì地
qiú球
de的
dì地
qiào壳
zhǔ主
yào要
yóu由
yán岩
shí石
gòu构
chéng成
。
The Earth's crust is mainly composed of rock.
Dà大
lù陆
dì地
qiào壳
de的
píng平
jūn均
hòu厚
dù度
yuē约
wéi为
sān3
shí5
wǔ千
qiān米
。
The average thickness of continental crust is about 35 kilometers.
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Hǎi海
dǐ底
dì地
qiào壳
bǐ比
dà大
lù陆
dì地
qiào壳
báo薄
dé得
duō多
。
Oceanic crust is much thinner than continental crust.
Dì地
zhèn震
tōng通
cháng常
fā发
shēng生
zài在
dì地
qiào壳
bǎn板
kuài块
de的
jiāo交
jiè界
chù处
。
Earthquakes usually occur at the boundaries of crustal plates.
Dì地
qiào壳
yùn运
dòng动
sù塑
zào造
le了
dì地
qiú球
biǎo表
miàn面
de的
shān山
mài脉
hé和
xiá峡
gǔ谷
。
Crustal movements shape the mountains and valleys on the Earth's surface.