Continental The oceanic crust melts into magma at the point of subduction, this then rises and solidifies, creating new oceanic crust. It is constantly being recycled.
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Give example of a destructive plate margin
Nazca (oceanic) and the South American (continental)
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What type of plates are involved on a constructive plate margin
Two oceanic
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What type of plates are involved on a conservative plate margin
Oceanic and continental
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What type of plates are involved on a collision plate margin
Two continental
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Give an example of a conservative plate margin
Pacific plate (oceanic) North American (continental)
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What plate boundary is a composite volcano found on?
Destructive plate boundary
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What are the properties of the lava in a composite volcano?
Thick, viscous consistency and therefore flows slowly
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Give an example of a composite volcano
Mount Fuji in Japan
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What plate margin is a shield volcano found on?
Constructive plate margin
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Give an example of a shield volcano
Mauna Loa in the Hawaiian islands
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What is the difference between the Richter scale and the Mercalli scale?
Richter is measured by machine, Mercalli is based on personal experience Richter measures the power of the earthquake, Mercalli measures the damage
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How are fold mountains formed?
Sediment accumulates in geosynclines under the sea due to rivers bringing sediment into the ocean Sediment compresses into rock after millions of years As the plates come together the sedimentary rock is forced up, forming fold mountains
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Give an example of a constructive plate margin
North American and Eurasian plates
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What are the three P's that help reduce the effects of an earthquake?
Predict Prepare Protect
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How can you predict an earthquake? Name 4
Invest in scientists to monitor ground movements Analysis animals for strange behaviour Global Positioning Systems monitor changes in the shape of the land Seismometers record vibrations in the ground, foreshocks?
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How has Japan prepared for earthquakes?
On September 1st of every year they have a Disaster Prevention Day where all emergency drills are practised by local governments across the country
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How has the USA prepared for earthquakes?
They have the Federal Emergency Management Agency that give advice to people and produce emergency plans Active since 2001
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What building in San Francisco is earthquake proof? How tall? Why should it withstand an earthquake?
One Rincon Hill 641 feet Concrete core Steel supports Water tank to slow down the sway and balance the building during an earthquake
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Where is Taipei 101? How many floors? How much does the steel counterbalance weigh?
Taiwan 101 200 tonnes
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Other cards in this set
Card 2
Front
What type of plate is the oldest and why?
Back
Continental The oceanic crust melts into magma at the point of subduction, this then rises and solidifies, creating new oceanic crust. It is constantly being recycled.
Card 3
Front
Give example of a destructive plate margin
Back
Card 4
Front
What type of plates are involved on a constructive plate margin
Back
Card 5
Front
What type of plates are involved on a conservative plate margin
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