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The type of rock typical of island arcs is andesite. Andesite is an intermediate volcanic rock that is commonly found in volcanic arcs where oceanic crust subducts beneath continental crust, forming magma that eventually erupts to create volcanic islands.

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On which type of plate boundary do island arcs occur?

convergent boundaries


What type of rock is the Easter Island head of?

volcanic rock


What type of rock is Easter Island?

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What type of plate boundary is volcanic island acrs associated with?

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Ocean Trenches, Island Arcs, Volcanic Mountain Chains, Magmatic Arcs.


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What is true of the type of angle in this lesson It measures half the difference of the arcs it intercepts. It measures twice the sum of the arc it intercepts. It measures half the sum of the arcs it?

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What type of extrusive rock would form at a volcano?

Extrusive rock of an igneous origin, formed from the cooling and solidification of lava. Typical examples include basalt, andesite and rhyolite.


What type of plate boundary forms volcanic islands?

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What type of rock is found in Barbados?

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