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Flashcards in Structure of the Earth Deck (27)
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1

what is the furthest down you can go in the earth's structure?

inner core

2

what comes after the inner core?

outer core

3

what comes after the outer core?

lower mantle

4

what comes after the lower mantle?

upper mantle

5

what is the thin crust called in the upper mantle?

oceanic crust

6

what is the thick crust called in the upper mantle?

continental crust

7

which layer of the Earth has a partially molten layer?

athenopshere

8

why does the earth's core give out heat?

radioactive decay

9

what does the earth's density do from crust to core?

increases

10

what does the earth's temp do from crust to core?

increases

11

what forms when two tectonic plates push together?

a trench

12

what is a plate boundary?

a place where two plates meet

13

what happens on a convergent plate boundary?

the plates push together

14

what happens on a divergent plate boundary?

the plates pull apart

15

what happens on a conservative plate boundary?

the plates slide past each other

16

what is the nickname for a divergent plate boundary?

construcitve

17

what is the nickname for a convergent (oceanic meets continental) plate boundary?

destructive

18

what is the nickname for a convergent (continental meets continental) plate boundary?

collision

19

what is the nickname for a conservative plate boundary?

transform

20

what type of volcano forms on a divergent plate boundary?

shield volcano

21

what is the Benioff Zone?

lots of friction and pressure which release seismic waves and cause earthquakes

22

on which plate boundary do fold mountains form?

convergent (continental meets continental)

23

which plate boundary creates the most violent earthquakes?

conservative

24

which plate boundary produces very explosive volcanoes?

convergent (oceanic meets continental)

25

which plate boundary forms a deep ocean trench?

convergent (oceanic meets continental)

26

what is a hotspot volcano?

a volcano that forms in the centre of a plate

27

what is the crust in the solid part of the upper mantle called?

lithosphere