Establishing Boundaries
This kind of boundary is where two plates collide with each other.
What is a convergent boundary?
Between oceanic crust and continental crust, this one is more dense.
What is oceanic?
Molten mantle rock that stays underground, not exposed to the surface (or to water or to air) is called this.
What is magma?
Subduction occurs at this general type of tectonic plate boundary.
What is convergent?
A fault is this kind of tectonic boundary.
What is a transform boundary?
This is the official name for the plastic mantle.
What is the asthenosphere?
These two present-day continents, both of which partly reside in the Southern Hemisphere, look like they could easily fit together like puzzle pieces. They both lend support to the previous existence of supercontinents.
What are South America and Africa?
[No partial credit for this one.]
The Tonga Trench is this general type of plate boundary.
What is convergent?
This kind of boundary has plates moving away from each other.
What is divergent boundary?
Tectonic plates are made of the lithosphere. These two layers of the Earth make up the lithosphere.
What is the crust and the upper/rigid mantle?
(Partial credit for just one of these)
This US state was made because of a hot spot.
What is Hawaii?
The Southwest Indian Ridge is this general kind of plate boundary.
What is divergent?
This kind of boundary is where most earthquakes occur.
What is a transform boundary?
If you wanted to locate a sample of the oldest seafloor in a given ocean, this is where you would go relative to its mid-ocean ridge.
What is far away / the furthest away / the opposite of close / etc. (something to that effect)?
Magnetic poles switching is an observation, one that helps us establish the age of crust coming from this general type of tectonic plate boundary.
What is divergent?
The St. Helena Hot Spot is on this tectonic plate.
What is the African Plate?
We expect the highest mountain formations (without volcanoes) to occur at this type of plate boundary. Please be specific with the general type of boundary & the plate type(s) involved.
What is convergent (continental-continental)?
[Partial credit for convergent; partial credit for continental-continental.]
This is what we call the space between two diverging plates. If it's between two continental plates, it's a lowland region that spans the divergent boundary.
What is a rift valley?
This is the mechanism in the plastic mantle that fuels the recycling of old crust and the making of new crust.
What is convection?
The Indian-Australian Plate is moving toward three plates. Name one of them.
What is the Pacific Plate?
OR What is the Eurasian Plate?
OR What is Fiji Plate (at least partly)?