Tectonic Crossword Flashcards Preview

Geography 12 Tectonic Plates > Tectonic Crossword > Flashcards

Flashcards in Tectonic Crossword Deck (22)
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1

Continental crust

Sial

2

Large grained oceanic igneous rock

Gabbro

3

Greatest continental crack in the earth’s surface

African Rift Valley

4

Deepest area in ocean

Trench

5

Land features formed when ocean vs ocean plate converge

Island arcs

6

Boundary between lithosphere and mantle

Moho

7

Outer crust of earth

Lithosphere

8

Upper part of mantle where convection currents are present

Asthenosphere

9

Shallow area of oceans close to continents made of sedimentary

Continental shell

10

Snow-called volcano with steep slopes found in continents

Composite cone

11

Oceanic crust

Sima

12

Mantle

Mesosphere

13

Frequent earthquakes at subduction zone

Benioff zone

14

Dark small grained volcanic rock

Basalt

15

Fault characterized by horizontal movement

Transform fault

16

Driving force of plates

Convection currents

17

Island chain formed when 2 ocean plates collide

Tonga islands

18

Area of earth responsible for creating magnetic field

Outer core

19

Mountains produced when continent/continent collision

Fold mountains

20

Type of lava that creates large volcanoes on continents

Andesite lava

21

Plate boundary where new land is created

Mid ocean ridge

22

Plate boundary where one plate dives below another

Subduction zone