coastal erosion line; tide mark
Tone colorsmāmámǎmàma
Meanings
1 sense · 4 examplesnoun
linear trace formed on the coast by seawater erosion; coastal erosion line
technicalTechnical geological and geomorphological term describing the linear mark left on coastal landforms by the erosive action of seawater, tides, or waves. Often studied to understand historical coastline changes and sea levels.
Dì地
zhì质
xué学
jiā家
zhèng正
zài在
yán研
jiū究
zhè这
piàn片
hǎi海
tān滩
shàng上
de的
tīng汀
xiàn线
，
yǐ以
liǎo了
jiě解
hǎi海
àn岸
qīn侵
shí蚀
de的
lì历
shǐ史
。
Geologists are studying the coastal erosion lines on this beach to understand the history of coastal erosion.
Zhè这
tiáo条
qīng清
xī晰
de的
tīng汀
xiàn线
biǎo表
míng明
，
jǐ几
shí十
nián年
qián前
zhè这
lǐ里
de的
hǎi海
àn岸
xiàn线
hái还
zài在
nà那
gè个
wèi位
zhi置
。
This clear tide mark indicates that several decades ago, the coastline was still at that position.
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Tōng通
guò过
fēn分
xī析
tīng汀
xiàn线
de的
xíng形
tài态
，
wǒ我
men们
kě可
yǐ以
tuī推
duàn断
gǔ古
dài代
hǎi海
píng平
miàn面
de的
gāo高
dù度
。
By analyzing the morphology of erosion lines, we can infer the height of ancient sea levels.
Cháo潮
shuǐ水
tuì退
qù去
hòu后
，
shā沙
tān滩
shàng上
liú留
xià下
le了
yī一
dào道
dào道
tīng汀
xiàn线
。
After the tide receded, rows of tide marks were left on the sandy beach.