Unit 1

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Created by: EmmaHarris
Created on: 03-02-15 19:06

Continental crust is...?

Thick but has low density normally 35-70km thick granite rock

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Oceanic crust is...?

Thin but has high density normally 5-10km thick basaltic rock

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Temperatures in the mantle range from...?

900-4000'C

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Plate tectonics are caused by?

Radioactive decay in the core heating the mantle causing convection currents.

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On constructive plate boundaries you find....?

Shield volcanoes, basaltic magma, plates pull appart

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On destructive plate boundaries you find...?

Composite volcanoes, andesitic magma, subduction, highly eruptive volcanoes.

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On conservative plate boundaries you find...?

No volcanoes, earthquakes, plates sliding

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Volcano case studies

Constructive - North America and Eurasian plate(Iceland). Destructive - Eurasian and Pacific plate( Japan) Conservative - North American and Pacific plate( San andreas fault US)

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Other cards in this set

Card 2

Front

Oceanic crust is...?

Back

Thin but has high density normally 5-10km thick basaltic rock

Card 3

Front

Temperatures in the mantle range from...?

Back

Card 4

Front

Plate tectonics are caused by?

Back

Card 5

Front

On constructive plate boundaries you find....?

Back

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Unit 1