총 44페이지
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Caduceus
enough to provide gas hydrate appropriate temperature
ⓒOhmyPhoto
conditions to be cooled. In addition, the remains of
organismsthatexistinlargequantitiesinthedeepseabed
arethesourceofgashydrates.Methanegas,producedby
bacteriabreakingdowntheremainsoforganicmaterials,
combines with water molecules to create gas hydrates.
The gas hydrate forms when methane gas is trapped in
water molecules in a low temperature and high-pressure
environment. When the gas hydrate is pulled out to the
ocean, the temperature rises and the pressure decreases,
causing the methane gas to be released and catch fire.
▲The evergreen spindle tree is a short evergreen tree that grows
Methanegascanalsobeusedasfuel.Intheearly2000s,
about 2 to 3 meters tall at the foot of coastal mountains near the
gas hydrates were hyped as a potential energy source
eastern part of the Korean Peninsula and Dokdo.
because of their expansive tendency. When exposed to
atmosphericpressure,gashydratescanexpandupto136
times their original size. This means that only 1 ton of
gas hydrate is needed to produce 136 tons of methane
NaturalResources
gas.However,asresearchintogashydratesasanenergy
source progressed, their negative effects on climate
changewererevealedovertime.
GasHydrate,theHiddenResearchResource
Forastretchofabout130meters,whitesolidmasseslie
between400and1000metersunderwaterinthesouthern
Answers
part of the Ulleung basin.* At first glance, they can be
Living
mistaken for dry ice, but they are actually gas hydrates.
ⓒGreen
Gashydratesareformedwhensedimentarydepositsfrom
the decay of microorganisms in the deep ocean meet
with low-temperature seawater. When water molecules
crystallize in the low-temperature seawater layer, a void
is formed. Gas molecules then enter the space and are
cooled. Gas hydrates are also called methane hydrates
because they are mostly made up of methane. Gas
hydrates are found around the world, including in the
▲Gas hydrates easily catch fire as methane gas is emitted in high-
Arctic,Antarctica,Russia,andtheEastSeanearDokdo,
temperatureandlow-pressureenvironments.
Korea.ThereservesinDokdoareestimatedtobeenough
to last for more than 500 years at the current rate of
Studies have shown that gas hydrates are difficult to
energyconsumption.
handleandcanhaveadverseeffectsontheenvironment,
The reason for the large deposits of gas hydrates in
so it is too early to use them as an energy source. In
Dokdo is due to the geological features of Dokdo. They
general,studieshaveshownthatmethanegascanleakor
usually form on the deep seabed at depths of more than
vaporizeduringtheminingprocess,soitisimportantto
2,000meters.Thus,theoceanattheedgeofthecontinent
handle it carefully. Researchers agree that obtaining gas
is a good place for gas hydrates to form because the
hydrates is a laborious process. Obtaining gas hydrates
pressure is high and the temperature is low. The main
involves a series of steps, including placing the gas
depth zone of Dokdo is 2,000 meters, which is deep
hydrate in a specially designed container that controls
9
OCTOBER 2023
enough to provide gas hydrate appropriate temperature
ⓒOhmyPhoto
conditions to be cooled. In addition, the remains of
organismsthatexistinlargequantitiesinthedeepseabed
arethesourceofgashydrates.Methanegas,producedby
bacteriabreakingdowntheremainsoforganicmaterials,
combines with water molecules to create gas hydrates.
The gas hydrate forms when methane gas is trapped in
water molecules in a low temperature and high-pressure
environment. When the gas hydrate is pulled out to the
ocean, the temperature rises and the pressure decreases,
causing the methane gas to be released and catch fire.
▲The evergreen spindle tree is a short evergreen tree that grows
Methanegascanalsobeusedasfuel.Intheearly2000s,
about 2 to 3 meters tall at the foot of coastal mountains near the
gas hydrates were hyped as a potential energy source
eastern part of the Korean Peninsula and Dokdo.
because of their expansive tendency. When exposed to
atmosphericpressure,gashydratescanexpandupto136
times their original size. This means that only 1 ton of
gas hydrate is needed to produce 136 tons of methane
NaturalResources
gas.However,asresearchintogashydratesasanenergy
source progressed, their negative effects on climate
changewererevealedovertime.
GasHydrate,theHiddenResearchResource
Forastretchofabout130meters,whitesolidmasseslie
between400and1000metersunderwaterinthesouthern
Answers
part of the Ulleung basin.* At first glance, they can be
Living
mistaken for dry ice, but they are actually gas hydrates.
ⓒGreen
Gashydratesareformedwhensedimentarydepositsfrom
the decay of microorganisms in the deep ocean meet
with low-temperature seawater. When water molecules
crystallize in the low-temperature seawater layer, a void
is formed. Gas molecules then enter the space and are
cooled. Gas hydrates are also called methane hydrates
because they are mostly made up of methane. Gas
hydrates are found around the world, including in the
▲Gas hydrates easily catch fire as methane gas is emitted in high-
Arctic,Antarctica,Russia,andtheEastSeanearDokdo,
temperatureandlow-pressureenvironments.
Korea.ThereservesinDokdoareestimatedtobeenough
to last for more than 500 years at the current rate of
Studies have shown that gas hydrates are difficult to
energyconsumption.
handleandcanhaveadverseeffectsontheenvironment,
The reason for the large deposits of gas hydrates in
so it is too early to use them as an energy source. In
Dokdo is due to the geological features of Dokdo. They
general,studieshaveshownthatmethanegascanleakor
usually form on the deep seabed at depths of more than
vaporizeduringtheminingprocess,soitisimportantto
2,000meters.Thus,theoceanattheedgeofthecontinent
handle it carefully. Researchers agree that obtaining gas
is a good place for gas hydrates to form because the
hydrates is a laborious process. Obtaining gas hydrates
pressure is high and the temperature is low. The main
involves a series of steps, including placing the gas
depth zone of Dokdo is 2,000 meters, which is deep
hydrate in a specially designed container that controls
9
OCTOBER 2023
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