topic: factors affecting weathering rate. 1) -- 2) particle size – --

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Topic: Factors Affecting Weathering Rate

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Page 1: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Topic: Factors Affecting Weathering Rate

Page 2: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

1) --

Page 3: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

2) Particle Size – --

Page 4: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Granite LimestoneAn obvious example of how weathering differs with different mineral solubilities

Different Compositions

Page 5: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

3. Different Composition – --Ex) Quartz very resistant!

Page 6: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

The presidential faces on Mount Rushmore are carved into chemically resistant granite.

Page 7: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

4) Pollution rate increases - --

Page 8: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

How does climate affect weathering rates?

Cleopatra's Needle, inscribed Egyptian hieroglyphs is 3000 years old. Was moved to NYC in the 1880’s.

Egypt NYC

Page 9: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

5) Climate influences weathering

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Long Island Rainfall: 117.1 cm (46 inches)Temperature: 10.7°C (51.2°F)

Page 10: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Page 11: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

a) Physical weathering: --b) Chemical weathering: --

Page 12: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

FQ:

What effect does increased surface area have on weathering rate?

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Page 13: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Topic: Products of Weathering

Page 14: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Page 15: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

A. Sediments – --

– Sediment sizes

A. Boulders-> Cobble-> Pebbles -> Sand-> Silt-> Clay

Sizes pg 6 ESRT

Products of Weathering

Page 16: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Sediment Size ESRT Pg.6

Page 17: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

B. --Ex) Salty water.

Page 18: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

C.Soil

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Parent Rock

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Page 19: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

The #1 factor in soil development is ---

Page 20: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Types of SoilA. Residual Soil - --

Page 21: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

B. Transported Soil – --*Most soil is transported.

•Glacial Loess

Page 22: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Soil Formation

Page 23: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

•O Horizon – The top, organic layer of soil, made up mostly of leaf litter and humus (decomposed organic matter)

•A Horizon – The topsoil, Seeds germinate and plant roots grow in this dark-colored layer. It is made up of humus (decomposed organic matter) mixed with mineral particles.

•B Horizon – The subsoil, It contains clay and mineral deposits that it receives from layers above it when water drips from the soil above.

•C Horizon – Partially weathered bedrock, It consists of slightly broken-up bedrock. Plant roots do not penetrate into this layer; very little organic material is found in this layer.

Soil Horizons

•D Horizon – Bedrock, solid rock.

Page 24: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Humus – --

Page 25: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

*---

http://library.thinkquest.org/17456/media/earthworm.jpg

Page 26: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Soil mixed by:

• Shrinking & swelling due to water content changes

• Freezing & thawing

Page 27: Topic: Factors Affecting Weathering Rate. 1) -- 2) Particle Size – --

Final Question:

• What do we call decayed plant and animal matter?

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