GEOGRAPHY TERMS
GEOG TERM
UNIT
MEANING
Agents of erosion
1
Forces which wear down the Earth's surface
Basaltic lava
1
Lava that flows easily- melted butter like
Carbon Dioxide
Cindercone volcano
Composite volcano
Continental Drift
Core
Crustal plates
1
1
1
1
1
1
C02 a gas given off during burning fuels
High explosive type
Alternating layers of both lava types
Movement of the continents - NA to west
Solid middle section of the earth
large pieces of the crust
Epicentre
1
Point on surface above earthquake
Faults
Focus
Fold
1
1
1
Crack in earth's crust
Place inside crust where the quake occurs
bend in earth's crust
Graben
1
Block that falls downward making a valley
Horst
Hydrogen Sulphide
1
1
Block that rises making a mountain
Gas from burning sulphur-rotten eggs
Landform region
Landform
Lava Sheets
Lava
1
1
1
1
Area of the surface with same features
feature of the earth's surface- lake,hill
large areas of smooth lava
Magma after it burns and reaches surface
Magma
Mantle
1
1
Molten rock inside earth
Area of molten rock inside the earth
Oruginals
1
Layers of the earth's crust
P Waves
Pacific Plate
Plate tectonics
1
1
1
Pressure waves - 1st wave -fast,weak
Crustal plate covering Pacific Ocean
Movements of the crustal plates
Region
Rhyolitic Lava
Richter Scale
Rift Valley
Ring of Fire
1
1
1
1
1
Area of the earth's surface
Lava that explodes - chunky peanut butter
scale for measuring earthquakes - up to 10
Steep sided valley formed by grabens
edges of Pacific Ocean - lots of tectonics
S Waves
Scarp
Seismograph
Shield volcano
1
1
1
1
Shear waves - 2nd wave - slower, strong
cliff
device that measures earthquakes
Low wide volcanos-basaltic lava
Talus
Tectonics
1
1
rocks that fall down a scarp
Earth building forces
Viscous
Volcanic dust
Volcanic Bomb
Volcanic ash
1
1
1
1
able to flow -thick liquid-like molasses
White ash that settles after eruptions
Rocks thrown in the air by volcanoes
Cinders from burning lava