Weathering Flashcards

1
Q

Taking a rock and creating little tiny particles known as sediment

A

Weathering

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2
Q

Moving sediment

A

erosion

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3
Q

Softer rocks indicates

A

quicker weathering

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4
Q

Harder rocks indicates

A

slow weathering

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5
Q

Two types of weathering

A

Mechanical weathering, chemical weathering

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6
Q

Beating rock with physical processes that create smaller pieces from a bigger pieces

A

Mechanical Weathering

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7
Q

Decomposing of a rock with a chemical process

A

chemical weathering

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8
Q

types of mechanical weathering

A

frost wedging, Pressure release, thermal expansion and contraction, salt wedging

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9
Q

water expands when frozen;

A

frost wedging

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10
Q

rocks forming at depth under high pressure and the outward expansion from pressure release makes it exposed at the surface

A

Pressure release

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11
Q

Rock volume changes with temperature; expands when heated creating sheet joints

A

thermal expansion and contraction

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12
Q

widens cracks and similar to frost wedging; easy in porous rocks

A

Salt wedging

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13
Q

Types of Chemical Weathering

A

Dissolution (by Water)

Oxidation (rust)

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14
Q

Breaking solutions to form cations and anions due to water’s polarity

A

Dissolution by water

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15
Q

Occurs to due to heavy water, snow, or ice; forms oxidize

A

Oxidation

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16
Q

how do minerals break down?

A

Opposite of their formation

17
Q

Percentages of soil minerals

A

25% air, 25% water, 45% minerals, 5% organic matter

18
Q

Soil layers top to bottom:

A

O, A, E, B, C

19
Q

Controllers of soil formation

A

Type of landscape, composition of bedrock, Climate

20
Q

Soil in wet climate

A

Laterite

21
Q

Soil in dry climate

A

Pedocals

22
Q

Temperature climate soil

A

Pedalfers

23
Q

Warm, rains a lot; top soil is thin;not a lot of organic materials

A

Wet Climate

24
Q

Very thin A layer = not true top soil, very little vegetation

A

dry climate

25
Q

Any process that reduces the quality of the soil is known as

A

Soil degradation

26
Q

Soils degradation occurs through

A

erosion, physical ways. biological ways, chemical ways