Plate Margins Flashcards
Describe the physical processes that happen at a destructive plate margin.
Click to View the Answer
Click to View the Question
When oceanic and continental plates collide the denser oceanic plate subducts the continental plate and enters the mantle where it melts. Magma can rise through the lithosphere and erupt as lava through volcanoes. As the oceanic plate subducts, it gets stuck due to friction. Pressure builds up until it is released as an earthquake.
Describe the physical processes that happen at a destructive plate margin.
Give one reason why the incidence of natural hazards is increasing.
Click to View the Answer
Click to View the Question
Reasons include:
- Climate change
- Deforestation
- Urbanisation
- Population increase
Give one reason why the incidence of natural hazards is increasing.
Do volcanoes and earthquakes occur at all plate margins?
Click to View the Answer
Click to View the Question
Volcanoes and earthquakes occur at all plate boundaries except at a conservative margin where only earthquakes happen.
Do volcanoes and earthquakes occur at all plate margins?
Give an example of two tectonic plates that form a destructive plate margin
Click to View the Answer
Click to View the Question
Pacific and the Eurasian plate, Nazca and South American plate, Philippines and Eurasian plate and the Indo-Australian and Pacific plate.
Give an example of two tectonic plates that form a destructive plate margin
Give an example of two tectonic plates that form a conservative plate margin.
Click to View the Answer
Click to View the Question
North American and Pacific plates, Cocos and Nazca plates, Arabian and Indo-Australian plates and the African and Eurasian plates.
Give an example of two tectonic plates that form a conservative plate margin.
