Download What are the three types of convergent boundaries? oceanic

Unit Assessment Review (Plate Tectonics, Volcanoes, and Earthquakes)
About two-thirds of Earth’s volcanism occurs at divergent boundaries.
The Hawaiian islands formed as a result of a hot spot.
The physical property that describes a material’s resistance to flow is called viscosity.
A(n) crater is a bowl-shaped depression that surrounds the vent at a volcano’s summit.
* Know characteristics of explosive and nonexplosive eruptions!
* Know types of magma and relative silica content
The type of volcano that is the smallest and has the steepest slopes is called a(n) cinder cone volcano.
A(n) caldera forms in the depression left when an empty magma chamber collapses.
* Know relationships between faults, types of stress, and plate boundaries.
Which is most critical in determining the distance from an epicenter? S-P Interval
Each successive number of the Richter scale represents an increase in amplitude of the largest seismic wave by a
factor of 10.
Potentially the most dangerous to human and most destructive to the environment; Mount St. Helens was an example
of this type of volcano. Composite
Stretching along the western coasts of North and South America and down the eastern coast of Asia, the CircumPacific Belt marks the location of most convergent boundary volcanoes.
Both temperature and pressure increase(s) with depth below Earth surface (geothermal gradient).
Rhyolitic magma has the same composition as granite, has a high viscosity, flows slowly (due to high silica content),
and produces very explosive volcanoes.
Each successive number of the Richter scale represents an increase in seismic energy by a factor of 32.
What are the three types of convergent boundaries?
oceanic-oceanic, continental-continental, continental-oceanic
What counterparts of mountain chains were found from maps generated with sonar data? deep-sea trenches
What happens during a magnetic reversal? the flow in the outer core changes, and Earth's magnetic field
changes direction
What uses sound waves to detect and measure objects underwater sonar
Why was Wegener's hypothesis rejected by most other scientists at the time? he could not explain how or why
the continents moved
Topography of the ocean floor is mapped by _________. sonar and magnetometer
What plate boundary forms a deep sea trench and volcanic mountain ranges? oceanic-continental convergent