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Good Morning!. Warm-Up: What are constructive and destructive geological forces? (think about processes in the rock cycle ) Today: Geological forces study guide Test Review. Constructive and Destructive Forces. Processes That Act Upon Earth’s Surface Features.

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good morning
Good Morning!
  • Warm-Up: What are constructive and destructive geological forces?

(think about processes in the rock cycle)

Today:

Geological forces study guide

Test Review

constructive and destructive forces

Constructive and Destructive Forces

Processes That Act Upon Earth’s Surface Features

SOURCE: https://teacherweb.com/LA/.../Constructive-and-Destructive-Forces.ppt

what are constructive and destructive forces
What are Constructive and Destructive Forces?
  • Constructive Force
    • A constructive force is a process that raises or builds up the surface features of the Earth.
  • Destructive Force
    • A destructive force is a process that lowers or tears down the surface features of the Earth.
what are surface features
Surface features are landforms and bodies of water that cover the Earth’s surface such as:

mountains

valleys

canyons

gorges

beaches

sand dunes

barrier Islands

flood-plains

moraines and drumlins

volcanoes

oceans

lakes

rivers

What Are Surface Features?
how can a surface feature be changed by a constructive force
How Can a Surface Feature be Changed by a Constructive Force?
  • Natural forces such as wind, water, ice, through the process of deposition.
    • Deposition is the process of dumping sediment, dirt, rocks, or particles in one place.
  • The movement of the Earth’s crust through Plate Tectonics
constructive force examples of deposition
Constructive ForceExamples of Deposition
  • Deltas
  • Floodplains
  • Beaches and Barrier Islands
  • Deposition
  • Sand dunes
  • Moraines and drumlins
slide7
Deltas

Floodplains

http://thebritishgeographer.weebly.com/river-landforms.html

http://stockarch.com/files/12/06/river_delta.jpg

slide8
Beaches and Barrier Islands

Sand dunes

http://i2.cdn.turner.com/cnn/dam/assets/130530161523-100-beaches-crane-beach-horizontal-gallery.jpg

http://www.ehp.qld.gov.au/images/wildlife-ecosystems/dunes.jpg

http://10mosttoday.com/wp-content/uploads/2013/08/Erg_Chebbi_dunes.jpg

http://www.beg.utexas.edu/coastal/thscmp/images/environment_1.jpg

moraines and drumlins
Moraines and drumlins

http://glacierchange.files.wordpress.com/2012/05/deming-glacier-terminus-20072.jpg

http://www.geo-logic.org/Glacial%20Geology/cd33022%20drumlin%20example001,%20www.royalalbertmuseum.ca.gif

http://isgs.illinois.edu/sites/isgs/files/images/form-moraine.gif

other constructive forces
Other Constructive Forces
  • Folding
  • Mountains
  • Faulting
  • Mountains
  • Trench
  • Fault
  • Earthquake
  • Mountains Islands
  • Volcanic Activity
folding
Folding

http://strike-slip.geol.ucsb.edu/KESSEL/palmdaleroadcut.html

http://3.bp.blogspot.com/_LxLfmghofGc/TUxh15RlTWI/AAAAAAAADGw/bxIGzYCZxVQ/s400/Folding_Gasteretal-Alps.jpg

faulting
Faulting

http://www.minimegeology.com/shop/wpimages/Fault_photo.jpg

http://www.labnews.co.uk/wp-content/uploads/2006/07/san_andreas_fault.jpg

how can a surface feature be changed by a destructive force
How Can a Surface Feature be Changed by a Destructive Force?
  • Physical or Chemical Weathering
    • Weathering is the breaking down of rock into sediment.
  • Natural forces such as wind, water, ice, through the process of erosion.
    • Erosion is the movement of sediment from one place to another.
changing the earth s surface by a destructive force examples of weathering
Changing the Earth’s Surface by a Destructive ForceExamples of Weathering
  • Mechanical / Physical Weathering
    • Temperature Change-Freezing and thawing of Rock
    • Ice Wedging-Water freezing and expanding in cracks of rock
    • Impact of organisms
      • Root Pry
      • Animals burrowing
  • Chemical Weathering
    • Oxidation / rusting
    • Carbonic Acid / acid rain
      • Caverns
    • Impact of organisms
      • Secretion of acid from Lichen
destructive force examples of erosion
Destructive ForceExamples of Erosion
  • Canyons, Gorges, V-Shaped Valleys
  • Sea Arches,
  • Sea Stacks
  • Erosion
  • Buttes, Desert
  • U-Shaped Valleys
  • Mudslide, Sinkholes
other destructive forces
Other Destructive Forces
  • Volcanic Activity
    • Movement of Earths Crust (Plate tectonics)
      • Reshaping of Mountains
  • Earthquakes
    • Movement of Earths Crust (Plate tectonics)
      • Trenches
        • cracks in the Earth Curst
now what
Now What?
  • With the rest of the period,
    • Get a mini and continue the OAKS Review Power point

OR

    • Work on the Review for Friday’s Rocks, Minerals and Fossils Test
oaks test review
OAKS Test Review
  • Go to Mrs. Ellis’s website
  • Click on 4th Period
  • Scroll to the bottom of the page
  • Find Monday, 5/5/14 and click on the link
  • Go through the slides and answer in your notebook.