explain the interior of the earth?
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Hi AditiBeautifull,
Here's your answer..
The earth is sphere with a radius about 6400 km. To find the inner structure of the earth, we would have to go down right up to it centre. Obviously, that is not possible. So, scientist have taken the help of earthquakes to determine the structure of the earth. During earthquakes, vibrations are produced. Just as the vibrations of a string of a musical instrument produce sound waves, I the earth's vibration produce seismic waves. Seismic waves travel through different materials inside the earth at different speeds. They also get when when they passed from one kind of material to another. By observing the path and speed of a seismic waves , scientist can find out the types of and arrangements of the materials through which it passed. From such observations we now know that the Earth consists of three concentric layers - The crust, the Mantle, and the core.
The crust - the uppermost layer of the lithosphere is called the crust. The crust is very thin with an average thickness of about 35 km. Please if we could think of the earth as an egg The crust could be regarded as the shell. However, The crust is not uniformly thick at all places. It is only about 8 cm thick under the oceans and about 40 km thick under the continents.
The upper part of the Continental crust, which is rich in silica and aluminium is called sial . The lower part of the continental crust and the whole of the oceans Crush are composed mainly of denser materials rich in silica and magnesium . They are together called Sima. The example, Mount Everest the highest mountain peak in the world is 8848 metres above sea level while the world's deepest point located in the Mariana Trench in the Pacific Ocean, is about 11000 metres below sea level.
The Mantle - below The crust lies the mantle . The boundaries between the Crust and the Mantle is called Mohorovicic discontinuity , or simply moho . It is named after it's discover andrija Mohorovicic , a Croatian scientist .
The Mantle extends up to the depth of about 2900 km. Its chief continents are silicates of iron and magnesium . Both the temperature and the density of the mantle increase with increasing depth towards the centre of the earth.
The core - the innermost layer of the earth is called core. It is about 3500 km thick. It is believed to be made up of heavy metal like Iron and Nickel , and is called nice.
The temperatures at the core are high enough to melt all metals. The study of seismic waves show that the outer part of the core is molten. However the innermost part is solid due to the presence of the layer above. The flow of molten iron in the outer core makes the earth behave like a huge magnet.
Hope it helps..
Here's your answer..
The earth is sphere with a radius about 6400 km. To find the inner structure of the earth, we would have to go down right up to it centre. Obviously, that is not possible. So, scientist have taken the help of earthquakes to determine the structure of the earth. During earthquakes, vibrations are produced. Just as the vibrations of a string of a musical instrument produce sound waves, I the earth's vibration produce seismic waves. Seismic waves travel through different materials inside the earth at different speeds. They also get when when they passed from one kind of material to another. By observing the path and speed of a seismic waves , scientist can find out the types of and arrangements of the materials through which it passed. From such observations we now know that the Earth consists of three concentric layers - The crust, the Mantle, and the core.
The crust - the uppermost layer of the lithosphere is called the crust. The crust is very thin with an average thickness of about 35 km. Please if we could think of the earth as an egg The crust could be regarded as the shell. However, The crust is not uniformly thick at all places. It is only about 8 cm thick under the oceans and about 40 km thick under the continents.
The upper part of the Continental crust, which is rich in silica and aluminium is called sial . The lower part of the continental crust and the whole of the oceans Crush are composed mainly of denser materials rich in silica and magnesium . They are together called Sima. The example, Mount Everest the highest mountain peak in the world is 8848 metres above sea level while the world's deepest point located in the Mariana Trench in the Pacific Ocean, is about 11000 metres below sea level.
The Mantle - below The crust lies the mantle . The boundaries between the Crust and the Mantle is called Mohorovicic discontinuity , or simply moho . It is named after it's discover andrija Mohorovicic , a Croatian scientist .
The Mantle extends up to the depth of about 2900 km. Its chief continents are silicates of iron and magnesium . Both the temperature and the density of the mantle increase with increasing depth towards the centre of the earth.
The core - the innermost layer of the earth is called core. It is about 3500 km thick. It is believed to be made up of heavy metal like Iron and Nickel , and is called nice.
The temperatures at the core are high enough to melt all metals. The study of seismic waves show that the outer part of the core is molten. However the innermost part is solid due to the presence of the layer above. The flow of molten iron in the outer core makes the earth behave like a huge magnet.
Hope it helps..
AditiBeautifull:
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Wonderful answer Unnati ^^
Answered by
27
Hey there!!
Thank u for your Question !!
Our Earth is the only planet where life can be seen , so it is necessary that why is there life ?, what is its structure? be patience ^-^ I will tell u everything here ,
let's understand it's whole structure and it's constitute also
It could be advance level information also so plzz read it carefully
our Earth is made up of three layer
1) Crust 2) Mental 3) Core
Before know it well first of all lets read about
□ Crust :-
☆It is the outermost solid part of the earth, normally about 8-40 kms thick.
☆It is brittle in nature.Nearly 1% of the earth’s volume and 0.5% of earth’s mass are made of the crust.
☆The thickness of the crust under the oceanic and continental areas are different. Oceanic crust is thinner (about 5kms) as compared to the continental crust (about 30kms).
☆Major constituent elements of crust are Silica (Si) and Aluminium (Al) and thus, it is often termed as SIAL(Sometimes SIAL is used to refer Lithosphere, which is the region comprising the crust and uppermost solid mantle, also).
☆The mean density of the materials in the crust is 3g/cm3.The discontinuity between the hydrosphere and crust is termed as the Conrad Discontinuity.
□Mental -
The portion of the interior beyond the crust is called as the mantle.
☆The discontinuity between the crust and mantle is called as the Mohorovich Discontinuity or Moho discontinuity.
☆The mantle is about 2900kms in thickness.Nearly 84% of the earth’s volume and 67% of the earth’s mass is occupied by the mantle.
☆The major constituent elements of the mantle are Silicon and Magnesium and hence it is also termed as SIMA.The density of the layer is higher than the crust and varies from 3.3 – 5.4g/cm3.The uppermost solid part of the mantle and the entire crust constitute the Lithosphere
☆The asthenosphere (in between 80-200km) is a highly viscous, mechanically weak and ductile, deforming region of the upper mantle which lies just below the lithosphere.The asthenosphere is the main source of magma and it is the layer over which the lithospheric plates/ continental plates move (plate tectonics).
☆The discontinuity between the upper mantle and the lower mantle is known as Repetti Discontinuity.The portion of the mantle which is just below the lithosphere and asthenosphere, but above the core is called as Mesosphere.
□Core -
☆It is the innermost layer surrounding the earth’s centre.The core is separated from the mantle by Guttenberg’s Discontinuity.
☆It is composed mainly of iron (Fe) and nickel (Ni) and hence it is also called as NIFE.The core constitutes nearly 15% of earth’s volume and 32.5% of earth’s mass.The core is the densest layer of the earth with its density ranges between 9.5-14.5g/cm3.
☆The Core consists of two sub-layers: the inner core and the outer core.The inner core is in solid state and the outer core is in the liquid state (or semi-liquid).The discontinuity between the upper core and the lower core is called as Lehmann Discontinuity.
☆Barysphere is sometimes used to refer the core of the earth or sometimes the whole interior.
□There is Three elements also -
☆Temperature
☆pressure
☆Density
Thank u !!!
Thank u for your Question !!
Our Earth is the only planet where life can be seen , so it is necessary that why is there life ?, what is its structure? be patience ^-^ I will tell u everything here ,
let's understand it's whole structure and it's constitute also
It could be advance level information also so plzz read it carefully
our Earth is made up of three layer
1) Crust 2) Mental 3) Core
Before know it well first of all lets read about
□ Crust :-
☆It is the outermost solid part of the earth, normally about 8-40 kms thick.
☆It is brittle in nature.Nearly 1% of the earth’s volume and 0.5% of earth’s mass are made of the crust.
☆The thickness of the crust under the oceanic and continental areas are different. Oceanic crust is thinner (about 5kms) as compared to the continental crust (about 30kms).
☆Major constituent elements of crust are Silica (Si) and Aluminium (Al) and thus, it is often termed as SIAL(Sometimes SIAL is used to refer Lithosphere, which is the region comprising the crust and uppermost solid mantle, also).
☆The mean density of the materials in the crust is 3g/cm3.The discontinuity between the hydrosphere and crust is termed as the Conrad Discontinuity.
□Mental -
The portion of the interior beyond the crust is called as the mantle.
☆The discontinuity between the crust and mantle is called as the Mohorovich Discontinuity or Moho discontinuity.
☆The mantle is about 2900kms in thickness.Nearly 84% of the earth’s volume and 67% of the earth’s mass is occupied by the mantle.
☆The major constituent elements of the mantle are Silicon and Magnesium and hence it is also termed as SIMA.The density of the layer is higher than the crust and varies from 3.3 – 5.4g/cm3.The uppermost solid part of the mantle and the entire crust constitute the Lithosphere
☆The asthenosphere (in between 80-200km) is a highly viscous, mechanically weak and ductile, deforming region of the upper mantle which lies just below the lithosphere.The asthenosphere is the main source of magma and it is the layer over which the lithospheric plates/ continental plates move (plate tectonics).
☆The discontinuity between the upper mantle and the lower mantle is known as Repetti Discontinuity.The portion of the mantle which is just below the lithosphere and asthenosphere, but above the core is called as Mesosphere.
□Core -
☆It is the innermost layer surrounding the earth’s centre.The core is separated from the mantle by Guttenberg’s Discontinuity.
☆It is composed mainly of iron (Fe) and nickel (Ni) and hence it is also called as NIFE.The core constitutes nearly 15% of earth’s volume and 32.5% of earth’s mass.The core is the densest layer of the earth with its density ranges between 9.5-14.5g/cm3.
☆The Core consists of two sub-layers: the inner core and the outer core.The inner core is in solid state and the outer core is in the liquid state (or semi-liquid).The discontinuity between the upper core and the lower core is called as Lehmann Discontinuity.
☆Barysphere is sometimes used to refer the core of the earth or sometimes the whole interior.
□There is Three elements also -
☆Temperature
☆pressure
☆Density
Thank u !!!
very very good explanation^^
yeah
good ak 47
:)
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