AICE Marine Erosion and Weathering Unit 2

Frost Wedging

(2)water seeps into the rocks and fractures in rock, water freezes and rocks break into pieces.. physical weathering

..(1)Exfoliation-.

rocks expand when the pressure of overlying rock is removed causing it to break into flat sheets Physical weathering

c) (1)Thermal Expansion

-- (2) the expansion and contraction of rock caused by temperature changes. Physical weathering

d) (1)Biological weathering

(2)water and nutrients collect in the cracks of rocks that can result in the growth of plants. As the plant grows, they enlarge the cracks. Also burrowing animals physical weathering

e) (1)Abrasion

(2)Rubbing of one object or surface against another, physical weathering

1) Dissolution-

2) rocks and minerals can dissolve in acidic waters. (cave formed by acid dissolved limestone). Chem weathering

) (1) Hydrolysis-

(2) the chemical compounds (mixes) in rock can break down due to a reaction with water. Feldspar changed to Clay. Chem weathering

c) (1) Oxidation-

(2) Minerals containing iron are exposed to water and oxygen in the air, the iron reacts and forms a new material like rust chem weathering

a) (1) Erosion by Gravity

- (2)  Rocks and other materials especially in steep slopes are pulled toward the center of Earth by gravity like rock slides, and mudslides.

b) (1) Erosion by Wind-.

(2) Air moves, it picks up loose material and transports it to other places, like sandstorms, or dust storms

c) (1) Erosion by Water

-(2) Water moves, it picks up  loose material and transports it to other places, like rain, runoff, or flooding.

) (1) Erosion by Ice

-(2) Glaciers move. It picks up  loose material and transports it to other places .

1) Deposition by Water-

(2) Water moves through a river, it loses some of its energy and it can no longer carry some of its sediments. As a result, it is deposited to the bottom of the stream.

1) Deposition by Wind

-(2) Sediments blown away by wind eventually are deposited. Overtime they turn into landforms.

(1) Deposition by Ice-

(2) When glaciers begin to melt, they deposit sediments on the land.