Mass Movements Landslides aka Def movement of sediment
- Slides: 58
Mass Movements Landslides aka Def: movement of sediment due to GRAVITY.
http: //www. youtube. com/watch? v=Qdsxt. C t. X 5 nk&feature=player_detailpage
ROCKFALL
Rockfall- boulders
ROCKSLIDE
I-40 North Carolina Nov. 2009 ► http: //www. youtube. com/watch? v=ZVYGJY n. JTi 0
AVALANCHE ► Fast movement of snow ► Caused by a weak layer of snow underneath surface ► Usually in Spring ► http: //www. youtube. c om/watch? v=B 0 RWLx OFGLY Avalanche Danger In Colorado At 30 Year High, Says Expert; 6 Fatalities So Far This Season
Snowbird, UT Nov. 2011 ► Jamie Pierre, here performing an extreme jump, was killed while snowboarding near Gad Valley on Sunday.
Telluride
documents/accidents/US_avalanche_ fatalities_by_user_group_by_year_1 997 -2 XXX. pdf
Mudflow/Lahar ► Mudflow- clay mixed with water ► Usually in spring- snowmelt ► Lahar- volcanic ash mixed with water
Mudflow Java 2007
► http: //www. youtube. com/watch_popup? v= VMJiibd. VYj. E&vq=small#t=34 http: //www. youtube. com/watch? v=VMJiibd VYj. E&feature=player_popout
Lahar MT ST HELENS
SLUMP ►Saturation of water + loss of friction causes soil below surface layer to drop downhill. ►Surface stays intact
CREEP ► SLOW movement of soil ► Causes tilting of objects ► Usually soil ► Result of freeze/thaw
CREEP
Creep
SOLIFLUCTION ► IN ARTIC CLIMATES ► In spring when top layer melts, moves slowly over permafrost
ARE MASS MOVEMENTS WEATHERING OR EROSION?
Factors influencing Mass Movement ► 1. Amount of moisture ► 2. ► 3. angle of slope lack of vegetation ► 4. rock type ► 5. Roundness of particle § More adds weight and makes slippery § Roots hold back movement § Sedimentary worst § Rounder move faster
Mass movements ► Cost US $4 billion per year ► http: //landslides. usgs. gov/recent/index. php ? year=2009&month=Oct
Landslide Causes? ► http: //www. youtube. com/watch? v=Jr. V 4 u. CV wmfk
Laguna Beach 2005
Philippines Feb. 2006 1800 dead
Sleeping bear dunes 1995
Prevention methods ► Fences/walls § Temporary fix § Gravity will win eventually!
Prevention methods ► Leave enough space!
Prevention methods ► Leave enough space!
Prevention methods ► Plant vegetation ► Roots act as anchors
Prevention methods ► Provide good drainage- excellent way!
Prevention methods ► Provide good drainage
- Locomotor dance movements
- Reform movements def
- Landslides, mudflows, slump, and creep are all examples of
- Slidetodoc.com
- Angular sedimentary rocks
- Earthquake-induced shallow landslides in the philippines
- Examples of mass movement
- Man induced landslides
- Chapter 8 mass movements wind and glaciers
- Civil right def
- Sediment sorting
- By which process is sediment laid down?
- Biogenous sediment definition
- Surface ocean currents
- Sediment traps construction
- Loose solid particles
- Christchurch bay sediment cell
- Construction entrance
- Ooze
- Coawst
- Broad sediment-covered continental shelves
- Urinalysis sediment
- Sediment
- An area of wave-washed sediment along a coast is a(n)
- A linear ridge of sediment attached to land
- Siliceous ooze
- Holderness coastline map
- Haptonema function
- Sediment
- Sediment transport
- Nephrotisches sediment
- Rounded sediment
- Sedimentary rocks
- Molar mass units
- Average atomic mass def
- Movement vs non movement area
- Triggers of mass movement
- Triggers of mass movement
- Mudflow definition geography
- Mass movement
- Mass to mass stoichiometry formula
- Label the parts of atom
- Relative atomic mass of beryllium
- Percent composition by mass
- Inertial mass vs gravitational mass
- Geams to moles
- Molar mass unit
- Mass to moles formula
- Mass/molar mass
- Mass/mass problems
- Atomic
- Gravitational mass vs inertial mass
- Mass formula
- Formula mass vs molecular mass
- Units for formula mass
- Formula mass vs molar mass
- The percent by mass is the ratio of the solute's
- Inertial mass vs gravitational mass
- Co2 relative molecular mass