Continental Drift & Plate Interactions
Sea Floor Spreading
Earthquakes
Igneous Rocks
Volcanoes
100
The supercontinent
What is Pangea?
100
Only happens at this type of boundary
What is a divergent boundary?
100
What is the meaning behind P and S for the wave types?
P means primary S means secondary
100
Metamorphic, sedimentary, _______
What is igneous?
100
What is an example of a volcano?
Answers may vary...
200
What is one reason that supports the theory that all the continents used to be one?
Fossil of the same type found all over the place Evidence that some odd places were once swamps or parts of a glacial shelf
200
The first person to propose the idea of seafloor spreading, when it wasn't generally accepted by the scientific community.
Who is Alfred Wagener?
200
How are earthquakes measured?
What is the richter magnitude scale?
200
Difference between lava and magma
Lava is 'surface magma' Magma is liquid rock that is below the surface
200
Volcanic island chains occur over what element of a volcano?
What is a 'hot spot'? (mantle plume)
300
What can be created at a subduction zone in the ocean?
What is a oceanic trench?
300
The place at which new crust forms
What is a mid-ocean ridge?
300
Which of the two waves arrives later at any specific station?
S wave or secondary wave
300
How are igneous rocks formed?
Through the solidification or cooling of magma
300
The most explosive type of volcano
What is a composite or strato volcano?
400
The three types of plates
What is convergent, divergent, and transform?
400
What causes the reason the new ocean crust continues to the side and not just straight up?
The main reason for this is because of gravity bringing the crust down and out from the new crust being formed.
400
The difference between an epicenter and a focus point?
The focus is the exact point underground where the fracture occured while the epicenter is the point directly about the focus on the surface
400
This type of igneous rock cools quickly and solidifies faster
What is an extrusive rock?
400
Volcano types
What is a shield volcano, strato volcano, composite volcano, cinder cone volcano and super volcano?
500
What is a subduction zone and how can they occur?
A subduction zone occurs when one plate is pushed underneath another. This can happen because of the weight of one plate over the other.
500
Why is the oceanic crust younger than continental crust?
Oceanic crust is formed at the mid-ocean ridge and is constantly being formed by new magma. When this magma is cooled it is pushed outward until it is subducted. When it get subducted under another plate it gets destroyed thus it is younger
500
How is it possible to pinpoint the location of an earthquakes epicenter?
You must triangulate the position with at least three stations whom each record the arrival times of the waves and the distance in between. Using that data it is possible to find out a radius of where it is from each station, then you must find their overlap.
500
This type of igneous rock cools much slower than the other type and is able to be easily identified by its large grains
What is an intrusive rock?
500
How can volcanoes be used to determine the age of rocks all around the world?
In rock beds a global marker is volcanic ash which can occur anywhere in the world depending on the amount of airborne ash and wind currents.
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