Tectonic Hazards (AQA GCSE Geography): Flashcards
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State of inner & outer core
State of inner & outer core
Inner core is solid, outer core is liquid
What is the mantle?
What is the mantle?
Semi-molten rock that moves slowly
Earth's outer layer
Earth's outer layer
Crust
What is the crust divided into?
What is the crust divided into?
Slabs called tectonic plates
Two types of tectonic plates
Two types of tectonic plates
Continental and oceanic
Where plates meet
Where plates meet
Plate boundary/margin
What causes tectonic plates to move?
What causes tectonic plates to move?
Convection currents in the mantle
How do convection currents form?
How do convection currents form?
Heat rising & falling inside the mantle
What generates heat for convection currents?
What generates heat for convection currents?
Radioactive decay in the core
Effect when convection currents diverge
Effect when convection currents diverge
Plates move apart
Effect when convection currents converge
Effect when convection currents converge
Plates move towards each other
What moves the tectonic plates?
What moves the tectonic plates?
Convection currents