Tectonics Key Terms

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

Clues

  • A distinct column of hot mantle material which is rising towards the surface of the Earth, creating intra-plate volcanism. (6, 5)
  • A large area of the Earth's crust which is stable moves slowly around the Earth's surface. (8, 5)
  • A mixture of water from glaciers melting during a volcanic eruption and volcanic material which is then washed down river valleys and can create serious flooding issues during a volcanic eruption. (11)
  • A record of the orientation of past magnetic fields recorded in igneous rocks as they are erupted at mid-ocean ridges. (14)
  • An extremely dangerous cloud of solid rock, lava, ash and volcanic gases erupted from some volcanoes. It can travel at speeds of up to 200 km/hr. (11, 4)
  • Movement of hot material in the Mantle which is thought to be the primary driver of tectonic plate movement. (10, 7)
  • The edge of a tectonic plate where tectonic activity is most focused. (5, 8)
  • The theory of how mid-ocean ridges are formed and new oceanic crust is created and then pushed away from the ridge. (3, 5, 9)
  • The theory of how tectonic plates move around the Earth's surface. (5, 9)
  • Volcanic eruptions that occur in the middle of a tectonic plate rather than on the margins. (5, 5, 9)

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