Tectonic Hazards - 1.2.1 Tectonic Plates Flashcards
Tell me about the earth’s core?
inner core (solid)
outer core (liquid)
Hottest part of the earth
Tell me about the earth’s mantle?
Surrounds the core.
Made of semi-molten rock.
Tell me about the Earth’s crust.
Between 5-100km.
Floats on the mantle and is broken into large pieces.
What are continential plates?
Thicker, older and lighter plates that don’t sink (subduct).
What are oceanic plates?
Thinner, newer and denser plates so they can sink underneath other plates.
What are plate margins or plate boundaries?
They describe the location where two tectonic plates meet or sit next to each other.
What do we call the meeting point of 2 tectonic plates?
Plate margins.
Plate boundaries and plate ____ are the same thing. They describe the location on Earth where 2 ____ plates meet or sit next to each other.
margins
tectonic
What are the 2 types of tectonic plate?
Continential
Oceanic
The Earth’s crust is broken into large pieces called ____ plates.
tectonic