Destructive, Conservative, Constructive and Collision
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How do destructive plate boundaries form?
1. Convection currents push plates together. 2. Plates collide. 3. Oceanic plate is denser so goes underneath. 4. FRICTION! 5. The oceanic plate gets subsumed (melts). 6. Magma under pressure rises to the top. 7. BOOOOOOOM!
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How do conservative plate boundaries form?
1. Plates rub together. 2. Pressure builds up between them. 3. One plate snaps into place (jolts). 4. This causes seismic waves (tremors).
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How do constructive plate boundaries form?
1. Convection currents move plates apart. 2. A rift forms in the ground. 3.Magma under pressure OOZES out. 4. Magma cools and solidifies into rock(basalt)
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How do collision plate boundaries form? (this one isn't necessary)
1. Two similiar density plates collide. 2. They push together and rise. 3. The ground crumples and folds. 4. It forms a mountain.
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Destructive plate boundary.
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Conservative plate boundary.
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Constructive plate boundary.
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Collision plate boundary.
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Construction of the earth.
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Chile earthquake. Destructive Plate boundary - Nazca plate and the South American Plate
Feb 2010 HIC 8.8 richter scale 500 killed, 12000 injured, 800000 affected 220000 homes, 4500 schools, 53 ports and 56 hospitals US$30 billion (cost of the earth quake)
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Nepal earthquake. Destructive Plate boundary - Indo-australian and Eurasian plate
April 2015 LIC 7.9 richter scale Near the Himalayas 9000 killed, 20000 injured, over 8 million people(1/3 of population) affected 3 million homeless 7000 schools destroyed US$5 billion cost for repair
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HIC definition
High Income Country
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LIC definition
Low Income Country
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NEE definition
Newly Emerging Economies
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Richter scale definition
The richter scale measures the magnitude of a tremor(how powerful it is) using an instrument called a seismograph.
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What type of scale is it.
Logarithmic. This means that it multiplies by 10 each jump up.
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Effects of earthquakes.
Mental state decrease, Financial loss, Death, Less resources, Communication loss, Destruction, Disease, Liquefactions - ground liquifies, Family loss.
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Volcanoes drawing.
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Why do people continue to live in places at risk of earthquakes or volcanoes.
Fertile soils, Geothermal energy, Tourism and Minerals.
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Other cards in this set
Card 2
Front
How do destructive plate boundaries form?
Back
1. Convection currents push plates together. 2. Plates collide. 3. Oceanic plate is denser so goes underneath. 4. FRICTION! 5. The oceanic plate gets subsumed (melts). 6. Magma under pressure rises to the top. 7. BOOOOOOOM!
Card 3
Front
How do conservative plate boundaries form?
Back
Card 4
Front
How do constructive plate boundaries form?
Back
Card 5
Front
How do collision plate boundaries form? (this one isn't necessary)
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