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Exploring Erosion: How Rocks Change and Move!

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S Vict16

28/06/2023

Geography

Geography revision

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Human & physical geography

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Rivers

Exploring Erosion: How Rocks Change and Move!

Types of erosion processes explained and coastal processes shape our landscapes through various mechanisms.

  • Understanding mass movement and its effects reveals how water saturation and gravity contribute to cliff collapse
  • Coastal transportation occurs through four main processes: solution, suspension, saltation, and traction
  • How freeze thaw weathering affects rocks demonstrates the power of water expansion in breaking down rock structures
  • Waves play a crucial role in both constructive and destructive coastal processes
  • Deposition occurs when water bodies lose energy, leading to sediment accumulation
...

28/06/2023

127

Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

View

Transportation Methods

Sediment movement along coastlines and rivers occurs through four distinct mechanisms, each handling different sizes of material.

Definition: Transportation in coastal environments refers to the movement of sediment by water.

Highlight: The size of the sediment determines its method of transportation, from dissolved minerals to large boulders.

The transportation methods include:

  • Solution: Dissolved minerals carried in water
  • Suspension: Sediment carried within water flow
  • Saltation: Bouncing pebbles along the bed
  • Traction: Rolling boulders along the bottom
Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

View

Mass Movement Processes

Mass movement represents a significant geomorphological process that shapes coastal cliffs and hillsides through gravitational forces.

Definition: Mass movement occurs when saturated rock material moves downslope under the influence of gravity.

Highlight: The process involves three key stages: saturation, undercutting, and collapse.

The sequence of events includes water saturation of permeable rock, base erosion by waves or rivers, and eventual collapse of the weakened structure.

Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

View

Deposition Processes

Deposition occurs as a natural part of the coastal sediment transport system, involving complex interactions between waves and beach material.

Vocabulary: Swash refers to the upward movement of waves on a beach, while backwash is the return flow.

Definition: Longshore drift is the zigzag movement of beach material along the coast.

The process involves:

  • Wave energy reduction leading to sediment dropping
  • Angled wave approach creating longshore drift
  • Interaction between swash and backwash movements
Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

View

Wave Types and Their Effects

Coastal processes are significantly influenced by two main wave types: constructive and destructive waves.

Definition: Constructive waves build up the coastline, while destructive waves erode it.

Highlight: The relative strength of swash versus backwash determines the wave's effect on the coast.

Each wave type has distinct characteristics:

  • Constructive waves have stronger swash than backwash
  • Destructive waves have stronger backwash than swash
Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

View

Freeze-Thaw Weathering Process

Freeze-thaw weathering represents a powerful mechanical weathering process that breaks down rocks through water expansion and contraction.

Definition: Freeze-thaw weathering occurs when water repeatedly freezes and thaws within rock cracks.

Highlight: Water expands by approximately 9% when frozen, creating significant pressure within rock fractures.

The process follows three distinct stages:

  1. Water infiltration into rock cracks
  2. Freezing and expansion of water
  3. Progressive rock breakdown through repeated cycles

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Subjects

Geography

Human & physical geography

Rivers

 

Geography

•

127

•

28 Jun 2023

•

6 pages

Exploring Erosion: How Rocks Change and Move!

S

S Vict16

@s._.vict05

Types of erosion processes explained and coastal processes shape our landscapes through various mechanisms.

  • Understanding mass movement and its effects reveals how water saturation and gravity contribute to cliff collapse
  • Coastal transportation occurs through four main processes: solution, suspension, saltation,... Show more

Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

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Transportation Methods

Sediment movement along coastlines and rivers occurs through four distinct mechanisms, each handling different sizes of material.

Definition: Transportation in coastal environments refers to the movement of sediment by water.

Highlight: The size of the sediment determines its method of transportation, from dissolved minerals to large boulders.

The transportation methods include:

  • Solution: Dissolved minerals carried in water
  • Suspension: Sediment carried within water flow
  • Saltation: Bouncing pebbles along the bed
  • Traction: Rolling boulders along the bottom
Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

Sign up to see the contentIt's free!

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Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Mass Movement Processes

Mass movement represents a significant geomorphological process that shapes coastal cliffs and hillsides through gravitational forces.

Definition: Mass movement occurs when saturated rock material moves downslope under the influence of gravity.

Highlight: The process involves three key stages: saturation, undercutting, and collapse.

The sequence of events includes water saturation of permeable rock, base erosion by waves or rivers, and eventual collapse of the weakened structure.

Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

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Deposition Processes

Deposition occurs as a natural part of the coastal sediment transport system, involving complex interactions between waves and beach material.

Vocabulary: Swash refers to the upward movement of waves on a beach, while backwash is the return flow.

Definition: Longshore drift is the zigzag movement of beach material along the coast.

The process involves:

  • Wave energy reduction leading to sediment dropping
  • Angled wave approach creating longshore drift
  • Interaction between swash and backwash movements
Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

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Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Wave Types and Their Effects

Coastal processes are significantly influenced by two main wave types: constructive and destructive waves.

Definition: Constructive waves build up the coastline, while destructive waves erode it.

Highlight: The relative strength of swash versus backwash determines the wave's effect on the coast.

Each wave type has distinct characteristics:

  • Constructive waves have stronger swash than backwash
  • Destructive waves have stronger backwash than swash
Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

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Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Freeze-Thaw Weathering Process

Freeze-thaw weathering represents a powerful mechanical weathering process that breaks down rocks through water expansion and contraction.

Definition: Freeze-thaw weathering occurs when water repeatedly freezes and thaws within rock cracks.

Highlight: Water expands by approximately 9% when frozen, creating significant pressure within rock fractures.

The process follows three distinct stages:

  1. Water infiltration into rock cracks
  2. Freezing and expansion of water
  3. Progressive rock breakdown through repeated cycles
Types of erosion Attrition Solution A brasion Hydraulic action Rocks that bash together to become Smaller/smoother. A chemical reaction. tha

Sign up to see the contentIt's free!

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Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Types of Erosion

The various erosion processes work together to shape and modify coastal landscapes. Each type serves a specific function in breaking down rock materials.

Definition: Erosion is the process by which rock and sediment are worn away and transported to new locations.

Example: Attrition occurs when rocks collide and become smoother, similar to stones in a tumbler.

Vocabulary: Hydraulic action refers to the force of water entering rock cracks, causing them to expand through air compression.

The four main types of erosion include:

  • Attrition: Rocks colliding and becoming smoother
  • Solution: Chemical dissolution of rocks
  • Abrasion: Rocks being hurled against cliffs
  • Hydraulic action: Water pressure expanding cracks

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Thomas R

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This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

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Sudenaz Ocak

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Greenlight Bonnie

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very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

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This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

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