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
