Untitled presentation

Photographic Evidence

By: Manibah

Convergent BoundaryContinental-Continental= Mountains

Himalayan Mountains are the tallest mountain range in the world.

Cause: Two continental plates collide together.Effect: The oceanic crust goes under continental creating mountain.

Subduction Zone

Crater Lake National Park created due to plates collision.

Cause: The two plates colliding.Effect: Volcanic eruptions and trenches.

Convergent Boundary-Subduction Zone

Oceanic-Oceanic= Trench

Marianas trench ocean is one of the deepest part of ocean.

Cause: When two plates carrying oceanic crust meet.Effect: Oceanic Trench is formed as the massive.

Convergent Boundary-Subduction Zone

Oceanic -Oceanic= Volcanic Island

Mauna Loa Erupting in HawaiiCause: When tectonic plate comes together, magma rises upward until it erupts on the sea.Effect: Creates Volcanic Island.

Convergent Boundary-Subduction Zone

Oceanic-Continental= Trench and Volcanic Arc

Aleutian Arc is a large volcanic arc in the State of Alaska.

Aleutian Trench is an Oceanic Trench along a convergent plate boundary

Cause: When a continental plate converges with an oceanic plate a subduction zone forms.Effects: Which creates trenches and volcanic arc.

AnalysisAt convergent boundary, two tectonic plates come together. It either happens at continental crust, oceanic or both which is lead to different features. One real-world event example could be Mauna Loa which, volcanic island erupting in Hawaii, 1984. The eruption of Mauna Loa began suddenly, following a period of years of slowly increasing earthquake activity beneath the volcano. When tectonic plate comes together, magma rises upward until it erupts on the sea floor creating an volcanic island. Lava builds up on the seafloor over millions of years. The lava cool fastly as it reaches the ocean and forms solid rock creating an island. Another example of real-world event could be Himalayan mountains. For at least 80 million years the oceanic Indian Plate continued its unavoidable collision with southern Asia, including Tibet. The collision of plates is making Himalaya to move more. In conclusion, when two tectonic plates converge, it creates beautiful yet dangerous features such as volcanic island and mountains.

Transform BoundaryContinental-continental= Earthquake

San Andreas fault earthquake was dangerous and destructive earthquake.

Cause: When rock underground suddenly breaks along a fault.Effect: Causes a destructive earthquake.

Transform BoundaryOceanic-Oceanic=Tsunami

Tsunami occurred in Japan, 2011 causing massive destruction with the magnitude of 7.3

Cause: Large waves caused by sudden movement on the ocean floor that can result from an earthquake.Effect: Causes a great destruction from Tsunami.

AnalysisAt Transform boundary, two plates move past each other without breaking. Two main features of Transform boundary are Earthquake and Tsunami. One example of real-world event could be the San Andreas fault earthquake in 1906. It had magnitude between 7.7-7.9 and it was destructive and dangerous. Many buildings were shaken to pieces by the earthquake. Due to plates on either side of a transform boundary are sliding past each other and not tearing or crunching each other causes earthquake. Another example of an event is Tsunami in Japan, 2011 causing massive destruction. Tsunami is a harbor wave caused by sudden movement in oceanic plates. In conclusion, when two plates move past each other causes tsunami and earthquake at transform boundary.

Divergent BoundaryContinental-Continental= Rift Valley

Olduvai Gorge, Tanzania's Great Rift Valley.Great Rift valley is spreading apart.

Cause: Tectonic plates break apart from each other. Where plates move apart, the Earth’s crust separates.Effect: Rift valleys lead to the creation.

Divergent BoundaryOceanic-Oceanic= Mid Ocean Ridge

Juan De Fuca Ridge, mid-oceanic mountain range. The land splitting apart.

Cause: Uplifting of the ocean floor occurs when convection currents rise in the mantle under oceanic crust. Effect:Mid-Oceanic Ridge occurs when the pressure of the ridge pushes the rest of the tectonic plate away from the ridge.

Analysis At Divergent boundary, two plates moves apart. When the mantle of earth moves, both crusts of earth moves. Split in the crust molten rocks and magma are forced up into the split and they move sideways. At divergent boundary,rift valley and mid-oceanic ridge could be created. One example of real-world event is Olduvai Gorge, Tanzania's Great Rift Valley. Great Rift valley is spreading apart. Another example of real-world event could be Juan De Fuca Ridge, mid-oceanic mountain range. The land splitting apart created mid oceanic ridge.This uplifting of the ocean floor occurs when convection currents rise in the mantle under the oceanic crust and create magma where two tectonic plates meet at a divergent boundary. In conclusion, when two plates moves apart causes different feature to appear such as mid-oceanic ridge and rift valley.