GCSE Geography restless earth

Question	Answer
Mount Pinatubo, Philippines	Destructive plate boundary Eurasian plate subducted beneath pacific plate Composite volcano June 15th, 1991
Kilauea, Hawaii	Constructive plate boundary Convection currents in mantle pull plates apart No deaths as eruption was predicted Shield volcano Basalt lava
Oceanic crust	Forms the land Thick Low density Mostly granite
Oceanic crust	Under the sea Thin High density rock Mostly basalt
Lithosphere	Top of mantle and crust
Image: constructive (image/jpg)	Constructive plate margin
Image: collision_2 (image/png)	Collision plate margin
Image: conservative_boundary (image/jpeg)	Conservative plate margin
Image: destructivemargin (image/jpg)	Destructive plate margin
Balsatic magma	Shield volcano Usually found at constructive margins High temp, low silica, low gas content Fluid Little explosive activity
Andesidic magma	Composite volcano Usually found at destructive margins Lower temp, more silica, dissolved gasses More likely to explode when reaches surface
Granitic magma	Steep-sided dome volcano Low temp, high silica Very viscus and sticky Usually cools and becomes igneous rock before reaching surface
Haiti	12th January 2010 Conservative plate margin Plates move same direction 316,000 people killed, 1 million homeless
Christchurch, New Zealand	22nd February 2011 Conservative plate margin Plates move opposite direction 181 people killed

Resource summary

	Created by natalie.porter24 over 9 years ago