Soils. Soil Weathering and erosion transports materials across Earth’s surface Weathering and...

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Transcript of Soils. Soil Weathering and erosion transports materials across Earth’s surface Weathering and...

Page 1: Soils. Soil Weathering and erosion transports materials across Earth’s surface Weathering and erosion transports materials across Earth’s surface The.

SoilsSoils

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SoilSoil

Weathering and erosion transports Weathering and erosion transports materials across Earth’s surfacematerials across Earth’s surface

The loose material covers most of The loose material covers most of Earth’s surface is a Earth’s surface is a resourceresource. .

Soil (not dirt) is a combination of Soil (not dirt) is a combination of weathered rock and organic material weathered rock and organic material that can support plant life. that can support plant life.

Soil formation is a Soil formation is a slowslow process. process.

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Soil FormationSoil Formation Parent materialParent material – the material weathered – the material weathered

into soilinto soil Residual SoilResidual Soil – –

Soil that contains weathered material that Soil that contains weathered material that matches the local bedrockmatches the local bedrock

The local bedrock was weathered in place and The local bedrock was weathered in place and turned into soil. (Remember this is a very slow turned into soil. (Remember this is a very slow process)process)

Transported SoilTransported Soil Soil that contains weathered material that is Soil that contains weathered material that is

different from the local bedrock.different from the local bedrock. The rock material needed to make the soil was The rock material needed to make the soil was

‘transported’ (wind, water, glaciers) ‘transported’ (wind, water, glaciers) NYS is mostly covered in transported soilNYS is mostly covered in transported soil

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Soil ProfilesSoil Profiles

The ‘ideal’ soil The ‘ideal’ soil profile is composed profile is composed of 4 layersof 4 layers O - organicO - organic A - leachingA - leaching B - accumulationB - accumulation C – weathered C – weathered

parent materialparent material

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Soil ProfilesSoil Profiles

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Types of SoilTypes of Soil

There are many different soils that There are many different soils that are formed under unique conditionsare formed under unique conditions

Soil composition –Soil composition – Inorganic material sand, silt, Inorganic material sand, silt, clayclay. . This material affects the amount of This material affects the amount of

water within soil water within soil sand dries out fast, clayey soil dries sand dries out fast, clayey soil dries

slower.slower.

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Soil Soil ClassificatiClassificati

onon• Different conditions lead to different soil types.

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Factors that influence Soil Factors that influence Soil DevelopmentDevelopment

TimeTime Parent MaterialParent Material Plants and animalsPlants and animals Topography (slope)Topography (slope) ClimateClimate

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Some Soil PhotosSome Soil Photos

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New York Tennessee

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South Dakota

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California

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Houston, TX

North East US

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Northeast woodland

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Tropical Soils:

•Very thick B layer

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England

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Desert Soil

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Hawaii Soil


Weathering. Weathering What is weathering? Weathering is the breakdown and alteration of rocks and minerals near or at the Earth’s surface. The two.

Weathering. Weathering What is weathering? Weathering is the breakdown and alteration of rocks and minerals near or at the Earth’s surface. The two.

Weathering and Erosion. Weathering is the breaking down of rocks and other materials on the Earth’s surface.

Weathering and Erosion. Weathering is the breaking down of rocks and other materials on the Earth’s surface.

Shaping Earth’s Surface. Weathering, Erosion, and Transportation.

Shaping Earth’s Surface. Weathering, Erosion, and Transportation.

External Forces of Change Weathering & Erosion. 1. Explain the difference b/w weathering & erosion. Weathering breaks down rocks on Earth’s surface.

External Forces of Change Weathering & Erosion. 1. Explain the difference b/w weathering & erosion. Weathering breaks down rocks on Earth’s surface.

WEATHERING Weathering is the process by which rocks on or near Earth’s surface break down and change.

WEATHERING Weathering is the process by which rocks on or near Earth’s surface break down and change.

Weathering and Erosion Weathering means the process of breaking down rocks and other substances at Earth’s surface.

Weathering and Erosion Weathering means the process of breaking down rocks and other substances at Earth’s surface.

Weathering and Erosion NOTES. Weathering The breakdown do the materials of Earth’s crust into smaller pieces.

Weathering and Erosion NOTES. Weathering The breakdown do the materials of Earth’s crust into smaller pieces.

CHAPTER 7: WEATHERING & SOIL. Aim: How does weathering change Earth’s surface?

CHAPTER 7: WEATHERING & SOIL. Aim: How does weathering change Earth’s surface?

Weathering and erosion. What is Weathering? Weathering is the breaking down of rocks and other materials on the earth’s surface Weathering is the breaking.

Weathering and erosion. What is Weathering? Weathering is the breaking down of rocks and other materials on the earth’s surface Weathering is the breaking.

Changing Earth’s Surface. Weathering Erosion and Deposition Weathering The process that breaks down rock and other substances at Earth’s surface.

Changing Earth’s Surface. Weathering Erosion and Deposition Weathering The process that breaks down rock and other substances at Earth’s surface.

Aim: Weathering and Erosion. Weathering The breakdown of the materials of Earth’s crust into smaller pieces.

Aim: Weathering and Erosion. Weathering The breakdown of the materials of Earth’s crust into smaller pieces.

Ch.12, Sec.1 - Weathering Weathering Weathering - weathering is the breakup of rock due to exposure to processes that occur at Earth’s surface - mechanical.

Ch.12, Sec.1 - Weathering Weathering Weathering - weathering is the breakup of rock due to exposure to processes that occur at Earth’s surface - mechanical.

Chemical Weathering and Soils Chapter 3. Weathering Igneous minerals formed out of equilibrium with Earth’s surface WEATHERING converts less-stable minerals.

Chemical Weathering and Soils Chapter 3. Weathering Igneous minerals formed out of equilibrium with Earth’s surface WEATHERING converts less-stable minerals.

Chapter 6 Weathering and Soil. Earth’s external processes Weathering – the physical breakdown (disintegration) and chemical alteration (decomposition)

Chapter 6 Weathering and Soil. Earth’s external processes Weathering – the physical breakdown (disintegration) and chemical alteration (decomposition)

Weathering The Earth’s Changing Surface. Weathering the process that breaks down rock and other substances at Earth’s surface.

Weathering The Earth’s Changing Surface. Weathering the process that breaks down rock and other substances at Earth’s surface.

Earth’s Surface: Chapter 4 Section 1 Mechanical and Chemical Weathering

Earth’s Surface: Chapter 4 Section 1 Mechanical and Chemical Weathering

Chapter: Weathering and Erosion Table of Contents Section 1: Weathering and Soil Section 2: Erosion of Earth’s SurfaceErosion of Earth’s Surface Formation.

Chapter: Weathering and Erosion Table of Contents Section 1: Weathering and Soil Section 2: Erosion of Earth’s SurfaceErosion of Earth’s Surface Formation.

Weathering Weathering is the breaking down of rocks and other materials on the earth’s surface.

Weathering Weathering is the breaking down of rocks and other materials on the earth’s surface.

Changing Earth’s Surface Weathering and Erosion. Changes to Earth’s Surface Earth’s crust is constantly in a process of change Weathering Erosion Deposition.

Changing Earth’s Surface Weathering and Erosion. Changes to Earth’s Surface Earth’s crust is constantly in a process of change Weathering Erosion Deposition.

Weathering and Soils. Earth’s surface processes Earth’s surface processes First some definitions: Weathering – Physical breakdown and chemical alteration.

Weathering and Soils. Earth’s surface processes Earth’s surface processes First some definitions: Weathering – Physical breakdown and chemical alteration.