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ORIGEN DEL MOVIMIENTO DE LAS PLACAS: PLUMAS DEL MANTO - YouTube

Volcanes, estructura dela Tierra, tectónica de placas, borde divergente de Islandia, Mackency, sismología, composición dela Tierra, geofísica, cambios en el ...
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STRUCTURE OF THE EARTH

STRUCTURE OF THE EARTH | internal earth | Scoop.it

INNER LAYER OF THE PLANET

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STRUCTURE OF THE EARTH BY THE COMPOSITION 

 

CRUST
It is the outer most layer of the earth. It is separated from the mantle by the Moho Discontinuity. It has an average thickness of 30 km, although this thickness is variable, which is thinner and denser in the oceans and thicker but less dense on the continents. Continental crust is composed of aluminum silicates (granites), mainly limestone also abound. The oceanic crust is formed by more dense silicates and basalts and less ancient continental crust.  

 

MANTLE

 

It is the middle layer. It extends from the Moho (30 km) to that of Gutenberg (2900 km). It consists of upper mantle to 700 km, and the lower mantle (up to 2900 km). Basic rocks are composed of more dense (3.5 g/cm3) than the crust, formed mainly by iron and magnesium silicates.  

 

CORE

 

It extends from the Gutenberg discontinuity (2900 km) to the center of the earth (6370 km). Are composed of iron with small amounts of other chemicals (nickel, carbon, etc.).. It can be distinguished: the outer core, until the 5100 km, in liquid form and the inner core solid.   

 

STRUCTURE DYNAMICS: lithosphere and Asthenosphere

LITHOSPHERE

 

It comprises part of the crust and upper mantle to about 75 km depth, is characterized by being rigid. It is thicker in the continents: continental lithosphere (up to 150 km thick) and thinner under the oceans: oceanic lithosphere. It is characterized by being fragmented in large parts called lithospheric plates moving past one another or separating colliding with very slow movements, between 3 cm / year and 12 cm / year. These movements are responsible for the formation of large mountain ranges, volcanism, earthquakes and many other geological phenomena.

ASTHENOSPHERE

 

It is a plastic layer comprising part of the upper mantle to about 300 km depth, approximately. As more fluid is produced in it calls currents convection currents. These currents are responsible for the movement of the plates.
   
 

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DRAW THE INTERNAL EARTH WITH THE DIFFERENT LAYER BY COMPOSITION AND WITH THE STRUCTURE DYNAMICS

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The Earth 3D: Convection Currents and Tectonic Plates

I joined Maker Studios & so can you! Click here to see if your channel qualifies for RPM Network/Maker Studios http://awe.sm/cGjK8 This short animation is ab...
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convection currents

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lithosphere- Marissa - TeacherTube

lithosphere- Marissa - TeacherTube | internal earth | Scoop.it
lithosphere- Marissa. ... TeacherTube - lithosphere- Marissa. Username: Password: Login Remember Me. Free Sign Up | Login. Videos. Videos, Audios, Photos, Docs. Upload. Home · Videos · Docs · Audios · Photos · Groups · Classrooms ...
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What is the tectonic plates?

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Scientists monitoring, providing alerts on Pavlof and Cleveland volcanoes - Phys.Org

Scientists monitoring, providing alerts on Pavlof and Cleveland volcanoes - Phys.Org | internal earth | Scoop.it
Scientists monitoring, providing alerts on Pavlof and Cleveland volcanoes Phys.Org At Cleveland volcano, explosions from the summit vent were detected by an infrasound array and seismic instruments on Umnak Island about 80 miles to the east, and...
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What is happening?

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STRUCTURE OF THE EARTH

STRUCTURE OF THE EARTH | internal earth | Scoop.it

INNER LAYER OF THE PLANET

carolina alonso's insight:

DRAW THE INTERNAL EARTH WITH THE DIFFERENT LAYER BY COMPOSITION AND WITH THE STRUCTURE DYNAMICS

more...
carolina alonso's curator insight, May 19, 2014 5:54 PM

STRUCTURE OF THE EARTH BY THE COMPOSITION 

 

CRUST
It is the outer most layer of the earth. It is separated from the mantle by the Moho Discontinuity. It has an average thickness of 30 km, although this thickness is variable, which is thinner and denser in the oceans and thicker but less dense on the continents. Continental crust is composed of aluminum silicates (granites), mainly limestone also abound. The oceanic crust is formed by more dense silicates and basalts and less ancient continental crust.  

 

MANTLE

 

It is the middle layer. It extends from the Moho (30 km) to that of Gutenberg (2900 km). It consists of upper mantle to 700 km, and the lower mantle (up to 2900 km). Basic rocks are composed of more dense (3.5 g/cm3) than the crust, formed mainly by iron and magnesium silicates.  

 

CORE

 

It extends from the Gutenberg discontinuity (2900 km) to the center of the earth (6370 km). Are composed of iron with small amounts of other chemicals (nickel, carbon, etc.).. It can be distinguished: the outer core, until the 5100 km, in liquid form and the inner core solid.   

 

STRUCTURE DYNAMICS: lithosphere and Asthenosphere

LITHOSPHERE

 

It comprises part of the crust and upper mantle to about 75 km depth, is characterized by being rigid. It is thicker in the continents: continental lithosphere (up to 150 km thick) and thinner under the oceans: oceanic lithosphere. It is characterized by being fragmented in large parts called lithospheric plates moving past one another or separating colliding with very slow movements, between 3 cm / year and 12 cm / year. These movements are responsible for the formation of large mountain ranges, volcanism, earthquakes and many other geological phenomena.

ASTHENOSPHERE

 

It is a plastic layer comprising part of the upper mantle to about 300 km depth, approximately. As more fluid is produced in it calls currents convection currents. These currents are responsible for the movement of the plates.
   
 

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plate tectonics

From BBC documentary film "Earth The Power Of The Planet "
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It´s increible the power of the planet

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DMT completes 3D seismic exploration in Rioja, Spain - OilVoice (press release)

DMT completes 3D seismic exploration in Rioja, Spain - OilVoice (press release) | internal earth | Scoop.it
DMT completes 3D seismic exploration in Rioja, Spain
OilVoice (press release)
However, seismic waves were produced at nearly 10,000 locations using specialist vehicles and borehole methods and were logged at approx.
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seismic wave in Spain

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Earth's Unstable Crust 4 billion Years Ago Dripped Down into Mantle - Nature World News

Earth's Unstable Crust 4 billion Years Ago Dripped Down into Mantle - Nature World News | internal earth | Scoop.it
Nature World News Earth's Unstable Crust 4 billion Years Ago Dripped Down into Mantle Nature World News The Earth's mantle was much hotter 4 billion years ago during the Archean eon than it is today, according to a new study that sheds light on how...
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Decribe the internal earth

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