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 Groundwater.docx (15.9K) [11] DATE : 2017-07-14 19:21:05 |
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파일이 더 깔끔합니당
<Groundwater>
[1] 문단정리
1문단
#Definition of groundwater
1. saturate the ground -> fill all the spaces
2. meteoric water -> water cycle
-> ordinary -> soak into ground from surface, precipitation, lake and stream
-> long period remain
space in the solid ground -> hold all this water?
2문단
#Process of sediment
1. common spaces -> among particles of unconsolidated sand and gravel
2. this material beneath soil = fast rivers carrying loads of sediment
ex. ice sheets -> melt -> huge volumes of water flow -> water with pebbles, gravel and sand(outwash) -> water flow slow down -> deposit
3문단
#sediment
now -> smaller scale -> sediment-laden river or stream emerge [valley flat land(slow-> deposit -> fanwise] or river lake or sea [slow -> deposit -> lake floor, seafloor]
future -> located in land
4문단
#unconsolidated sediment
lowland(once the bed of a river =former riverbed = sandbars) -> buried by soil(sediment=gravels and sands) -> be saturated with groundwater unconsolidated sediment
5문단
#consolidated sediment
Consolidated sediment contain pore -> the gaps among the original grains=unconsolidated sediment not totally plug(pore O) -> dissolve by groundwater -> consolidation -> consolidated sediment as porous as unconsolidated sediment
6문단
#porous
both loose(unconsolidated) or cemented(consolidated) consist of space -> crystalline rocks solid -> except basalt(현무암) -> very porous
7문단
# Porosity
empty space -> porosity -> not same permeability -> porosity depend on ‘size’
8문단
# Surface tension
sample -> in a dry place, much of water in a sample will drain -> without surface tension : water would drain / surface tension : water is held
9문단
#Pore size
even though their porosities same -> the amount of water varies -> depend on “size”
-> large pores : too heavy for surface tension to hold -> drain away
-> small pores : too light to overcome the force of surface tension -> holding water in place
[2] 지문정리
saturate (into)
흠뻑 적시다, 스며들다
= soak (into)
by far
훨씬, 단연코
far
ad 멀리, 아득히
far and away 훨씬, 단연
so far 이 점까지는, 그 때까지는
far from 조금도 ~않다 = not at all
into
prep. 안으로, -으로 (방향성)
방향성
water has soaked into the ground ( water ground)
the ground from the surface, precipitation ( surface, precipitation ground )
At first thought
언뜻 보았을 때
= swift look, take a glance into, give(take, throw ..) a glance at, steal a glance at
bed
바닥
=base
flow
vi 흐르다 / n 흐름
flow away 흘러가다
flow into ~로 들어가다
flow from 샘솟다, 나오다
flow with 범람하다, 충분하다
= circulate
loads of
많은
= tons of
glacial outwash = outwash
빙하에서 흘러내린 퇴적물
= glacial drift
to this day
오늘날까지
=up to now, until now
drop
=deposit
consolidate
결합하다, 굳어지다
= cement
, or ,
~인지 간에
cling to
고수하다
=adhere
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