The Restless Earth-Glossary

HideShow resource information
  • Created by: Jordss
  • Created on: 16-04-14 22:01
Constructive margin
Two plates are moving apart from one another
1 of 28
Continental Crust
Thicker and less dense crust
2 of 28
Oceanic Crust
Thinner and more dense
3 of 28
Destructive margin
Two plates are moving toward each other
4 of 28
Subduction
The sinking of oceanic crust at a destructive margin
5 of 28
Mantle
Dense, mostly solid and the layer between the outer core and the crust
6 of 28
Convection currents
The circular currents of heat within the mantle
7 of 28
Conservative margin
Two plates are moving past each other
8 of 28
Fold mountains
Large mountains where rock layers have been pushed and folded together
9 of 28
Ocean trench
A deep section in the ocean, usually where an oceanic plate is sinking underneath a continental plate
10 of 28
Composite volcano
A steep sided volcano made of ash and lava
11 of 28
Shield volcano
A broad volcano that's mostly made up of lava
12 of 28
Subsistence
Farming to produce food and other resources for farmers and their family
13 of 28
Terraces
Steps created in the hillside to create area of flat land
14 of 28
Irrigation
Artificial watering of the land
15 of 28
Natural hazard
Occurrences where people have little control where a threat occurs on people's lives and possessions
16 of 28
Caldera
The depression of a supervolcano from a collapsed magma chamber
17 of 28
Fissures
Openings along a line of weaknesses that allow magma to escape
18 of 28
Geothermal
Water that is heated below the ground which comes to the surface in different ways
19 of 28
Geyser
Geothermal feature where water erupts into the air because of pressure
20 of 28
Hot spot
Section of an earths crust where magma rises weakening the crust. These are away from the plate boundaries
21 of 28
Focus
The part IN the earths crust where the earthquake originates from
22 of 28
Richter scale
Logarithmic scale based on scientific recordings and the amount of movement
23 of 28
Epicentre
The point directly above the focus on the earths crust
24 of 28
Shockwaves
Seismic waves generated by an earthquake that passes through the earths crust
25 of 28
Mercalli scale
Measuring an earthquake by describing and comparing the damage done on a scale from 1 to 12
26 of 28
The three P's
Prediction Preparation Protection
27 of 28
Tsunami
A wave that is often created because of an earthquake where the entire depth of ocean/sea is in motion from above the earthquake
28 of 28

Other cards in this set

Card 2

Front

Thicker and less dense crust

Back

Continental Crust

Card 3

Front

Thinner and more dense

Back

Preview of the back of card 3

Card 4

Front

Two plates are moving toward each other

Back

Preview of the back of card 4

Card 5

Front

The sinking of oceanic crust at a destructive margin

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all The Restless Earth resources »