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Geomorphology

Terms in this set (83)

aftershocks
series of less powerful earthquakes that follow the main quake. Aftershocks may continue for days.
Andes Mts.
South American mountain range with many volcanoes made of andesite lava.
Andesite Lava
Lava found on continental volcanoes. It forms very steep-sided volcanoes.
Anticline
Compression can fold rock layers. The uphold is known as an anticline and the download a syncline
Asthenosphere
The upper part of the mantle. This is a partly molten plastic zone which convection currents are present. Plates float on this zone
Basalt
A dark, dense, igneous rock with a fine texture, found in oceanic crust; forms sea floors
Batholith
Mass of intrusive igneous rock sometimes covers thousands of square km. If erosion removes overlying layers the batholith will be exposed.
Caldera
A large volcanic crater created by a violent volcanic explosion or implosion
Coal
A fossil fuel production led from the compacted and pressurized remains of tropical vegetation.
Composite cone
type of volcanic mountain, composed of layers of cinders and andesitic lava. Ex: ring of fire volcanoes
Compression
Pressure forcing rock surfaces to be pushed together
Continental shelf
Flat shallow ocean floor next to continent; may stretch out for 100km before deep ocean is reached
Continental slope
the drop off from shallow continental shelf to the deep ocean floor
Crater Lake, Oregon
Example of a caldera filled with water
Dike
A rock formation that results when magma breaks across rock layers.
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