Weathering and Erosion

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Weathering and Erosion

• Created by
• Madi Solomon and Victoria Page

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What is weathering?

• Weathering is the breaking down of rocks, soil,
  and minerals. It also breaks down artificial
  materials through contact with the Earths
  atmosphere.
• In order to prevent the loss of more topsoil,
  plant erosion-control plants and use no-till
  planting practices.

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What is erosion?

• Erosion is the process in which soil and rock are
  removed from the Earths surface by natural
  processes such as wind or water flow and then
  transported and deposited in other locations.
• To prevent erosion cover plants, applying mulch
  to flower beds, build surface runoff barriers,
  use contour farming when farming on hilly areas,
  and try terrace farming and gardening.

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Pictures of different types of weathering

Frost weathering
Crystallization weathering
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Causes of erosion and weathering

• Causes of weathering and erosion are rain fall,
  acid rain, wind, traffic, water erosion, and
  glaciers.

• erosion

erosion
weathering
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The Factors Controlling the Rate of Erosion

• Precipitation and wind speed
• Soil erosion and composition
• Vegetation cover
• Topography

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The difference between erosion and weathering

• Erosion is the wearing away of rocks, and other
  deposits 0on the earths surface by the action of
  water, ice, wind, etc.
• Weathering is the mechanical and chemical
  breakdown of rocks by the action of rain, snow,
  cold, etc.

erosion
weathering
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What is soil erosion?

• Soil erosion is when the soil is blown away by
  the wind or washed away by the rain.
• Some ways we can prevent soil erosion by planting
  more trees, avoiding deforestation, avoid soil,
  air pollutants in destruction of plant habitat,
  use mulch, and avoid felling of trees.

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Study of Historic Hopi Buttes Area

• Hopi Buttes volcanic field is a monogenetic
  volcanic field located on the Colorado Plateau.
  Most of the activity occurred between 8.5 and 6
  million years ago, with the most recent dated at
  4.2 million years ago.

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Erosion in the Southwest

• Build groynes, plant trees, build offshore
  breakwaters, and build artificial headlands.

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Coastal erosion prevention

• Erosion is carving into Southwest Washington
  beaches. Erosion rates at Cape Shoalwater have
  averaged over 100 feet per year for a century. In
  recent decades, new erosion hot spots have
  developed.

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Wind erosion prevention

• Wind erosion happens when the soil is left
  unprotected from the strong winds. The loss of
  topsoil lowers the quality of the soil. This
  makes it more expensive and harder to grow good
  crops. The blowing soil can also plug ditches,
  make driving more difficult, plug ventilation
  equipment and so on. Country and city people
  should both be concerned with wind erosion.
  Strong winds will always be around but we can do
  certain things that will protect the soil from
  blowing away.

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Beach erosion prevention study

• California's coast, one of our most precious
  resources, is a naturally eroding shoreline. It
  is both economically and socially important to
  minimize the loss of the State's beaches and to
  preserve its coastal resources. When erosion
  threatens to damage valuable infrastructure, or
  there is not enough beach width to accommodate
  the recreational needs of the local population
  and the State's many visitors, beach erosion
  control projects at carefully selected places can
  halt the erosion.

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Geological Hazards landslides

• Landslides constitute a major geologic hazard
  because they are widespread, occur in all 50
  states and U.S. territories, and cause 1-2
  billion in damages and more than 25 fatalities on
  average each year. Expansion of urban and
  recreational developments into hillside areas
  leads to more people that are threatened by
  landslides each year. Landslides commonly occur
  in connection with other major natural disasters
  such as earthquakes, volcanoes, wildfires, and
  floods.

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Federal Emergency Management Agencylandslides
and mudflows

• Landslides occur when masses of rock, earth, or
  debris move down a slope. Debris flows, also
  known as mudslides, are a common type of
  fast-moving landslide that tends to flow in
  channels.

• landslide

mudflow
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Reference Page

• http//en.wikipedia.org/wiki/Weathering
• http//en.wikipedia.org/wiki/Erosion
• http//in.answers.yahoo.com/question/index?qid200
  70711085900AAzX7ET
• http//www.ehow.com/facts_5557294_coastal-erosion-
  prevention.html
• http//www.scalloway.org.uk/phye6.html
• http//en.wikipedia.org/wiki/Hopi_Buttes_volcanic_
  field
• http//answers.yahoo.com/question/index_yltAlW_4
  YcgcONu1miEEMDoYRUjzKIX_ylv3?qid20100120080754A
  ALZCi9
• http//www.ecy.wa.gov/programs/sea/coast/erosion/s
  tudy.html
• http//www.environment.ualberta.ca/SoilPosters/win
  d.cfm
• http//www.dbw.ca.gov/Environmental/Beach.aspx
• http//landslides.usgs.gov/
• http//emergenchttpy.cdc.gov/disasters/landslides.
  asp

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Hope you enjoyed!