Marine Science: Introduction to Plate Tectonics
Marine Science: Introduction to Plate Tectonics
Go to: Plate Tectonics: http://oceanexplorer.noaa.gov/edu/learning/player/lesson01.html
1: How many earthquakes occur every year around the world?
~ There are 2,000 strong earthquakes that occur every year.
2: What is the Tectonics Theory? Explain.
~ The Tectonics Theory states that "the surface of the earth is not fixed and eternal, but is in constant ever-changing motion. Meaning that life is able to flourish because of tectonic activity.
3: Where do the Tectonic forces originate?
~ Tectonic forces originate from deep within the planet.
4: What are Earth’s 3 main layers?
~ The tree main layers are central core, a thick mantle, and a very thin outer crust.
5: Where is Tectonic activity concentrated?
~ Tectonic activity is concentrated in the upper 700 km of the planet.
6: What is the Lithosphere? Where is it located?
~ The Lithosphere is encases the entire earth but is broken into pieces. It is fused by the crust and outer mantle.
7: What is the Asthenosphere? Why is it important to plate tectonics?
~ Asthenosphere is a soft but solid layer of the upper mantle. It is important to the plate tectonics, because heat from the core of the earth rises into the asthenosphere and stirs it into sluggish motion. As it circulates the plates above it begin to move.
8: How fast do plates move (average?)
~ The plates move slow but the motion of moving is the average of the growth of finger nails.
9: What are the 3 types of plate boundaries?
~ The three types of plate boundaries are divergent, transform, and convergent.
10: What happens at Divergent Boundaries? Where are these mostly located?
~ At the divergent boundaries plates pull apart. These are mostly located where a narrow rift valley are created.
11: What kind of rock is Oceanic Crust made of?
~ Oceanic Crust is made of Basalt.
12: What happens at Convergent Boundaries? What is often formed? Explain.
~ At Convergent Boundaries where two plates collide together. Volcanic mountain chain is often formed by a trench.
13: What is Granite? Where is it found?
Granite is a life-colored, low density rock created from magma, and is found where the continents are.
14: What happens at Transform Boundaries? What is special about transform boundaries?
~ At the Transform Boundaries is where plate boundaries slide pass each other. Transform boundaries are special because the crust is broken or cracked but is not created or destroyed.
Go to: Plate Tectonics: http://oceanexplorer.noaa.gov/edu/learning/player/lesson01.html
1: How many earthquakes occur every year around the world?
~ There are 2,000 strong earthquakes that occur every year.
2: What is the Tectonics Theory? Explain.
~ The Tectonics Theory states that "the surface of the earth is not fixed and eternal, but is in constant ever-changing motion. Meaning that life is able to flourish because of tectonic activity.
3: Where do the Tectonic forces originate?
~ Tectonic forces originate from deep within the planet.
4: What are Earth’s 3 main layers?
~ The tree main layers are central core, a thick mantle, and a very thin outer crust.
5: Where is Tectonic activity concentrated?
~ Tectonic activity is concentrated in the upper 700 km of the planet.
6: What is the Lithosphere? Where is it located?
~ The Lithosphere is encases the entire earth but is broken into pieces. It is fused by the crust and outer mantle.
7: What is the Asthenosphere? Why is it important to plate tectonics?
~ Asthenosphere is a soft but solid layer of the upper mantle. It is important to the plate tectonics, because heat from the core of the earth rises into the asthenosphere and stirs it into sluggish motion. As it circulates the plates above it begin to move.
8: How fast do plates move (average?)
~ The plates move slow but the motion of moving is the average of the growth of finger nails.
9: What are the 3 types of plate boundaries?
~ The three types of plate boundaries are divergent, transform, and convergent.
10: What happens at Divergent Boundaries? Where are these mostly located?
~ At the divergent boundaries plates pull apart. These are mostly located where a narrow rift valley are created.
11: What kind of rock is Oceanic Crust made of?
~ Oceanic Crust is made of Basalt.
12: What happens at Convergent Boundaries? What is often formed? Explain.
~ At Convergent Boundaries where two plates collide together. Volcanic mountain chain is often formed by a trench.
13: What is Granite? Where is it found?
Granite is a life-colored, low density rock created from magma, and is found where the continents are.
14: What happens at Transform Boundaries? What is special about transform boundaries?
~ At the Transform Boundaries is where plate boundaries slide pass each other. Transform boundaries are special because the crust is broken or cracked but is not created or destroyed.