Plate Margins

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M U V X A K M H O U G I O R M F M W V X X
R L L P B Y H U U K M A P B Q C O M P L O
E V O L C A N O E S H H S Q P J L H G H I
S U P E R C O N T I N E N T P A N G E A F
C A S A V D S X L I T H O S P H E R E S U
G H N W I P N V L A R A W W M L N W H E D
D E I W Y W H C C G L S S S C L T M E I M
M N A P O Q A O V W E T E X C U Q U T N S
Q O T G C O W N D Q S H M D O M E E U B R
C A N J E H K S D W S E U S N E E K A Y L
I H U V A W H T C I C N L I S E O C E A T
I A O N N M X R E B I O P B E I X R I U B
X B M F I E S U K A X S E E R L J R T N V
X B D E C E X C O B Y P L W V M P B G O V
M U L P R G R T B T H H T R A L L B Y Y U
C S O B I V T I Y H P E N M T D L B H V E
J A F W D G U V Q J S R A A I T N W K Q Q
K X C W G E L E M J O E M R V N N L J B M
M V I V E M C E M S F D Q K E S I R Q T C
X A I M S I G T U R C O V T F P S G X Y L
B Y X G A E G N K U X J E W M U L J M I W

Clues

  • An Oceanic Ridge forms along which type of margin (12)
  • Consists of the crust and the rigid upper section of the mantle (11)
  • Have a total length of 60,000km (7, 6)
  • Originates deep within the asthenosphere as molten rock which rises and melts through the lithosperic plate forming a large volcanic mass at a hot spot (6, 6)
  • Semi-molten mass below the lithosphere on which the plates float (13)
  • The San Andreas Fault is an exaple of which margin (12)
  • Theory by Alfred Wegener in 1912 that all the continents used to be joined together 250m years ago (14, 6)
  • What is formed when two continental plates collide (4, 9)
  • Which landforms occur at Subduction zones (9)

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