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Weathering & Erosion
Vocabulary Review
27
Geology
11th Grade
02/12/2009

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Cards

Term
abrasion
Definition
This happens with wind weathering when sand is blown over a surface flattening and polishing it
Term
acid rain
Definition
This forms when carbon dioxide or sulfur trioxide combine with water
Term
chemical
Definition
__?__ weathering often involves oxidation or hydrolysis
Term
creep
Definition
This slow mass movement can take months or years to occur causing monuments to tilt or hills to shift
Term
earthflow
Definition
Slumgullion is a great example of this form of mass movement
Term
erosion
Definition
The carrying away or transportation of weathered material
Term
exfoliation
Definition
Splitting off of sheets or rock material exposed by uplift
Term
frost wedging
Definition
Occurs when water gets into narrow crack and freezes
Term
hydrolysis
Definition
This is a form of chemical weathering where water breaks minerals down; best example is feldspar to clay
Term
Landslide
Definition
A mass movement where gravity causes land to shift downward
Term
mass movement
Definition
The general term for any movement of weathered material or soil
Term
mudflow
Definition
A deadly combination of soil and water, this form of mass movement is responsible for more deaths each year than any other geological disaster
Term
oxidation
Definition
This type of chemical weathering combines oxygen with rocks or minerals
Term
mechanical
Definition
__?__ weathering physically breaks rocks into smaller pieces
Term
parent
Definition
__?__ material is what soil is formed from
Term
residual
Definition
__?__ soil lies on top of its parent material
Term
salinization
Definition
This happens when irrigated soils in desert regions go through evaporation causing the soil to become very concentrated with salt
Term
slump
Definition
This form of landslide leaves a curved edge when the soil suddenly shifts
Term
soil
Definition
Made of clay, silt, sand and humus
Term
depletion
Definition
Soil __?__ can leave the soil desertified; lacking nutrients
Term
fertility
Definition
Soil __?__ is a measure of how productive a soil is
Term
profile
Definition
A soil __?__ exposes the three layers of the soil
Term
subsoil
Definition
Also known as the B-Horizon
Term
talus
Definition
This broken pile of rock often has an angle of repose close to 40 degrees
Term
topsoil
Definition
Also known as the A-Horizon
Term
transported
Definition
__?__ soil comes from another place and is the type of soil we see here in Sheboygan
Term
weathering
Definition
The breaking down of rock and mineral material; can be done chemically or mechanically
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