Plate Boundaries By: Skylar Freeman

Divergent Plate Boundary

When 2 plates move away from each other and create new oceanic crust, a divergent plate boundary forms.Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. A landform with a Divergent Plate Boundary is the Mid-Atlantic Ridge. Here is an example of how the Mid-Atlantic Ridge moves.

The type of stress is tension. This photo of the frisbee being pulled demonstrates tension by being pull in opposite directions, the same way a divergent plate boundary moves.

Tension Stress

This process can also occur in the middle of continents and is referred to as continental rifting.

Real World Disaster In Iceland

The 2010 eruptions of Eyjafjallajökull were volcanic events at Eyjafjallajökull in Iceland which, although relatively small for volcanic eruptions, caused enormous disruption to air travel across western and northern Europe over an initial period of six days in April 2010. Additional localised disruption continued into May 2010. The eruption was declared officially over in October 2010, when snow on the glacier did not melt. From 14–20 April, ash covered large areas of northern Europe when the volcano erupted. About 20 countries closed their airspace to commercial jet traffic and it affected about 10 million travelers.

Transform Plate Boundary

Two plates slide horizontally past one another along a transform plate boundary. Earthquakes are common along this type of plate boundary.

One of the worst earthquakes on record...

Nepal Earthquake, 2015

A 7.8 magnitude earthquake struck Nepal in an area between the capital, Kathmandu, and the city of Pokhara on Saturday April 25, 2015 with what has been described as a force equaling that of 20 thermonuclear weapons. The devastation claimed the lives of at least 5,000 people while injuring 10,000 more with authorities warning that casualty numbers could rise. The devastating quake also destroyed major monuments such as the Dharahara tower, temples and world heritage sites near Kathmandu.

Shear Stress

the type of stress is shear. this photo of the scissors cutting the ribbon is an example of shear stress because the scissors slide past the ribbon similar to the way a transform plate boundary would move.

San Andreas Fault

The San Andreas Fault was created by a transform plate boundary. The San Andreas fault was formed by the movement of the North American and Pacific tectonic plates sliding past each other in opposite directions. This movement causes displacement of objects on each side of the fault as stress from the movement builds up.

Convergent Plate Boundary

There is 2 different types of Convergent Plate Boundaries


When an oceanic and a continental plate collide, they form a convergent plate boundary. The denser plate will subduct (sink). A volcanic mountain forms along the edge of the continent.

Volcanic Moutain

Convergent plate boundaries can also occur where two continental plates collide. Because both plates are equally dense, neither plate will subduct. Both plates uplift and deform. This creates huge mountains ranges,

Mountain Range

The type of stress formed by convergent plate boundaries is compression. This photo is an example of compression stress because like the plate boundaries move toward each other, the hands are moving toward the spring and pushing against it.

Compression Stress

The himalayan mountains were created by a convergent plate boundary. The Himalaya Mountains were formed from a collision of tectonic plates. The mountain formation primarily occurred in three phases that began about 50 million to 70 million years ago and most recently occurred about 600,000 years ago. The tectonic plates still are moving, and the mountain range continues to rise; the movement occurs at a rate of about 2 centimeters per year.

Himalayan Mountains

Chile's Calbuco Volcano erupted again Thursday April 30, 2015 filling the sky with smoke. the eruption Marks the third time in a week. There has been no activity from the volcano until now for more than four decades.

Calbuco Volcano


Created with images by Kavarny - "volcanoes mountains nature" • m01229 - "Black lab tug of war" • kuhnmi - "Beautiful Kamchatka" • keijj44 - "mountain peak mountain range"

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