Structure of the Earth 2
These are the pieces of crust that move around on the molten material underneath.
What are plates?
What type of volcanoes are the Hawaiian islands?
What are shield volcanoes?
The point in the interior of the earth where an earthquake originates.
What is the focus or focal point?
This type of fault is found at a transform boundaries.
What is a strike-slip fault
This type of force occurs at a transform boundary.
What is shear?
What is oceanic crust?
This term describes the bowl-like depression at the top of a volcano.
What is a crater?
The point on the surface of the earth above where an earthquake originates.
What is the epicenter?
Divergent boundaries have ___________ faults and convergent boundaries have _____________ faults.
What are normal and reverse faults (in that order)?
This is what has caused the formation of the Hawaiian islands.
What is a magma plume or hotspot in the middle of the Pacific Plate?
These parts of the mantle and core are liquid-like.
What is the lower mantle and outer core?
This term describes where material comes out of a volcano.
What is a vent?
What types of plate boundaries do earthquakes occur at?
This features is typically found at divergent boundaries and is typically found in this part of the Earth.
What are volcanic ridges and what is in the middle of the ocean?
This discovery led Wegener to suggest that Antarctica was not always at the south pole?
What are fossils of tropical plants?
This causes the inner core to be solid.
What is extreme pressure
The Cascade Mountains in Oregon and Washington are this type of volcano.
What is composite volcano or stratovolcano?
This process is used to locate the epicenter of an earthquake. It requires seismograph data from three different locations.
What is triangulation?
This is the most well-known diverging boundary that occurs on a continent.
What is the African Rift Valley?
What is subduction?
Movement of molten iron in the outer core is believed to be responsible for causing this which surrounds the Earth and protects us.
What is a magnetic field?
This is the passageway for magma to come up to the surface in a volcano.
What is a conduit?
This is how the distance from the epicenter of an earthquake determined?
What is the difference in time between the arrival of p-waves and s-waves?
These two features are typically found at a convergent boundary between oceanic and continental crust.
What are ocean trenches and volcanoes?
This is the reason Wegener's theory of Continental Drift was not widely accepted during his lifetime.
What is that he ould not explain what force caused the plates to move? (convection currents)