Tectonics-part1

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

Clues

  • At constructive margins in continental areas, crust falls between parallel faults to form a (4, 6)
  • Earthquakes that occur at constructive plate boundaries are generally (7, 5)
  • New crust forms, at right angles to the plate boundary (9, 6)
  • Rift valley example is 4,000 km long from Mozambique to the Red sea (7, 4, 6)
  • Rift valleys are also associated with ......(Kilimanjaro) due to the thinning crust a result of tension in the lithosphere (8, 8)
  • Space between constructive (divergent) boundaries is filled with (9, 4)
  • Spreading of the plates occur at different rates leading to friction and (11)
  • Volcanic activity also occurs along the ridge forming (9, 9)
  • When constructive boundaries continental crust move apart producing (4, 7)
  • When constructive boundaries oceanic crust move apart produce (3, 5, 6)

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