Weathering And Erosion!!
By: Skylar Grevengoed
Annie Sabotta
What Is Weathering?
• Weathering is the
chemical and physical
process that break
down rock at the
Earth’s surface.
What Is Erosion?
• The process by which
water, ice, wind. Or
gravity moves
fragments of rock and
soil.
Pictures Of Different Types Of
Weathering!
Pictures Of Weathering And
Erosion
Causes Of Weathering And Erosion
• Causes of weathering
and erosion are
caused from the suns
heat, rain, freezing
water, water, wind,
and plants asids.
Factors Controlling The Rate Of
Erosion
• The amount of rain
and how hard it rains,
the temperature
whether it is freezing
or extremely hot
temperatures.
USGS- Differences Between
Erosion And Weathering
• Chemical weathering has a
chemical change in at least
one mineral in a rock.
• Mechanical weathering has
physical breaks into fragments
that don’t change the chemical
make-up of minerals inside a
rock.
• Erosion is rock particles that
are loosened by either
chemical weathering or
mechanical weathering, and
they more during the process.
What Is Soil Erosion?
• Soil that is naturally
removed by the action
of water or wind.
• Soil erosion by water,
wind, and tillage
affects both
agriculture and the
natural environment.
The Study Of Historic Hopi Buttes
Area
• This study examines
land use, climate,
and their impacts on
land surface
conditions in the
ecologically sensitive
Hopi Buttes region of
the Navajo Nation.
Erosion in the South West
• Erosion is cutting into
the southwest
Washington beaches.
• Erosion rates at Cape
Shoal water average
over 100 feet per year
for a century.
Coastal Erosion Prevention
• Beaches form the first
line of defense against
ocean waves.
• When beaches erode, the
coast is more likely to
erode.
• Building along a coastline
can contribute to erosion.
• Replacing the sand in
eroded areas is a better
method of protecting the
coastline.
Wind Erosion Prevention
• Wind erosion
happens when the
soil is left unprotected
by strong winds.
• The loss of topsoil
lowers the quality of
the soil.
• This makes it difficult
for crops to grow and
more expensive.
Beach Erosion Prevention Study
• The corps of Engineers
Institute for the water
resources is part of the water
Resources Support Center in
Alexandria, Va.
• It was created in 1969 to
analyze and analytical tools to
address economic, social,
institutional and environmental
needs in water resources
planning and policy.
• Since its inception IWR has
been a leader in the
development of tools and
strategies needed to plan and
execute corps water resources
planning.
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
damage and more the
25 fatalities on
average each year.
Federal Emergency Management
Agency Landslides and Mudflows
• Landslides can be caused by a
variety of factors including
earthquakes, storms, volcanic
eruptions, fire, and by humans
modifying the land.
• In a landslide masses of rock,
earth or debris move down a
slope. Debris and mud flows
are rivers of rock, earth, and
other debris saturated with
water. If these natural disasters
do happen FEMA evaluates
the damage, distributes
money, supplies, and people to
help with the cleanup.
Solutions For Weathering!!!
• Solution weathering is another form for
chemical weathering.
• It happens when minerals dissolve in
water.
• This happens because types of rock easily
dissolve in rainwater.
Solutions For Soil Erosion!!!
• Livestock grazing rates should be carefully
managed to prevent overgrazing.
• Perhaps we must attempt to restrict
highway construction and urbanisation to
areas of lower agricultural potential.
• With extractive industries, a pledge must
be secured to restore the land to its former
condition before planning permission for
quarries or mines is granted.
Thanks For Watching!!!
Hope you enjoyed are
presentation!!
Bibliography!!
• http://images.nationalgeographic.com/wpf/medialive/photos/000/008/cache/arizonarock_824_600x450.jpg
• http://www.kidsgeo.com/images/erosion-weathering.jpg
• http://upload.wikimedia.org/wikipedia/commons/c/c7/Sid
ari_Eroded_Rock.jpg
• http://nebulouszone.com/wpcontent/uploads/2011/02/dif-weathering.jpg
• http://home.southernct.edu/~schmiedelt1/Image/ArchesN
P0019.jpg
• http://wiki.answers.com/Q/What_causes_weathering_an
d_erosion
Bibliography!!
•
•
•
•
•
•
•
•
•
http://www.intechopen.com/source/html/16975/media/image13.png
http://en.wikipedia.org/wiki/Erosion#Factors_affecting_erosion_rates
http://geomaps.wr.usgs.gov/parks/misc/gwearo.html
http://www.ux1.eiu.edu/~cfjps/1300/pits.jpg
http://wieczorkiewicz.wikispaces.com/file/view/MechanicalWeatherin
g.jpeg/111871235/MechanicalWeathering.jpeg
http://0.tqn.com/d/geology/1/0/9/Y/1/tafoniorso.jpg
http://images.nationalgeographic.com/wpf/medialive/photos/000/008/cache/arizonarock_824_600x450.jpg?01AD=3MROSazRB3dcLBdOS1kF8z3VxgZClBSNZ8Rp63uLdSHwnIq5I0u6Q&01RI=50255C51419545F&01NA=na
http://www.rosssea.info/pix/big/CavernousWeathering-granite.jpg
http://letslearngeology.com/website/wpcontent/uploads/2012/11/frost-wedging-rock1.jpg
Bibliography!!
•
•
•
•
•
•
•
•
•
•
http://www.kidsgeo.com/images/erosion-weathering.jpg
http://www.google.com/imgres?imgurl=http://us.123rf.com/400wm/400/400/alysta/alys
ta0806/alysta080600713/3220422-rock-patterns-formed-by-water-erosion-in-zionnational-park-utah-usa.jpg&imgrefurl=http://www.123rf.com/photo_3220422_rockpatterns-formed-by-water-erosion-in-zion-national-park-utahusa.html&usg=__wdNSsHAsK2YjN0fSdfaYf25cDmk=&h=1200&w=801&sz=240&hl=e
n&start=11&zoom=1&tbnid=RjO0azGpNAb29M:&tbnh=150&tbnw=100&ei=I0MmUdG
kCcafqwGJrIDABQ&prev=/search%3Fq%3Derosion%26hl%3Den%26safe%3Dactive
%26gbv%3D2%26ie%3DUTF8%26tbm%3Disch&itbs=1&sa=X&ved=0CD4QrQMwCg
http://home.southernct.edu/~schmiedelt1/Image/ArchesNP0019.jpg
text book
text book
http://educatoral.com/weathering_erosion_webques.html
http://serc.carleton.edu/resorces/11902html
http://www.iwr.usace.army.army.mil/docs/iwrreports/94-PS-1.pdf
http://cropgenebank.wordpress.com/2009/06/11/going-south/soil-erosion/
http://southwestdesertlover.files.wordpress.com/2012/06/hopi-buttes-near-dilkonaz.jpg
Bibliography!!
•
•
•
•
•
•
•
•
•
http://landslides.usgs.gov/
http://www.ready.gov/landslides-debris-flow
http://en.wikipedia.org/wiki/Federal_Emergency_Management_Agency
http://www.answers.com/topic/what-is-solution-weathering
http://www.geographyhigh.connectfree.co.uk/s5rldegradationsoilerosion.htm
l
http://lcweb2.loc.gov/service/pnp/fsa/8b30000/8b30000/8b30040v.jpg
http://upload.wikimedia.org/wikipedia/commons/9/93/Happisburgh_coastal_
erosion.jpg
http://www.beachprisms.com/images/prisms.jpg
http://www.uvm.edu/~inquiryb/webquest/sp09/mbeattie/Wind%20Erosion.JP
G
•
http://www.conservation.ca.gov/cgs/geologic_hazards/environmental_protec
tion/PublishingImages/landslide3.jpg
Bibliography!!
• http://www.rosssea.info/pix/big/CavernousWeathering-granite.jpg
• http://letslearngeology.com/website/wpcontent/uploads/2012/11/frost-wedging-rock1.jpg
• http://home.southernct.edu/~schmiedelt1/Image/ArchesNP0019.jpg
• text book
• text book
• http://educatoral.com/weathering_erosion_webques.html
• http://serc.carleton.edu/resorces/11902html
• http://www.iwr.usace.army.army.mil/docs/iwrreports/94-PS-1.pdf
• http://cropgenebank.wordpress.com/2009/06/11/going-south/soilerosion/
• http://southwestdesertlover.files.wordpress.com/2012/06/hopibuttes-near-dilkon-az.jpg
• http://landslides.usgs.gov/
• http://www.sott.net/image/image/s4/86024/full/fema.jpg
Bibliography!!
•
•
•
•
•
•
http://www.answers.com/topic/what-is-solution-weathering
http://www.geographyhigh.connectfree.co.uk/s5rldegradationsoilerosion.htm
l
http://lcweb2.loc.gov/service/pnp/fsa/8b30000/8b30000/8b30040v.jpg
http://upload.wikimedia.org/wikipedia/commons/9/93/Happisburgh_coastal_
erosion.jpg
http://www.beachprisms.com/images/prisms.jpg
http://www.uvm.edu/~inquiryb/webquest/sp09/mbeattie/Wind%20Erosion.JP
G
•
http://www.conservation.ca.gov/cgs/geologic_hazards/environmental_protec
tion/PublishingImages/landslide3.jpg
•
•
•
•
http://www.sott.net/image/image/s4/86024/full/fema.jpg
http://en.wikipedia.org/wiki/Federal_Emergency_Management_Agency
http://www.answers.com/topic/what-is-solution-weathering