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Karst

Karst. What Happened To Our School?. Blacksburg High School… What do you think made the gym collapse? Was it the snow? Maybe something underground?. http://www.wtvr.com/media/alternatethumbnails/story/2010-02/52225212-14192344.jpg. Sinkholes.

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Karst

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  1. Karst

  2. What Happened To Our School? • Blacksburg High School… • What do you think made the gym collapse? • Was it the snow? • Maybe something underground? http://www.wtvr.com/media/alternatethumbnails/story/2010-02/52225212-14192344.jpg

  3. Sinkholes • What was the last thing we talk about before spring break? • Groundwater, porosity and permeability • How do sinkholes form? What do you need to create a sinkhole? http://en.wikipedia.org/wiki/File:Sinkhole.jpg

  4. http://kgs.uky.edu/kgsweb/download/misc/landuse/TRIGG/triggissues_files/image015.jpghttp://kgs.uky.edu/kgsweb/download/misc/landuse/TRIGG/triggissues_files/image015.jpg

  5. http://www.swfwmd.state.fl.us/hydrology/sinkholes/SinkholePoster.gifhttp://www.swfwmd.state.fl.us/hydrology/sinkholes/SinkholePoster.gif

  6. How Do Caves Form? • Most caves are formed in limestone by dissolution • For our purposes, Dissolution = Dissolve • Stalactite and Stalagmite • “Stalactites hold on tight!” http://en.wikipedia.org/wiki/File:Lechuguilla_Cave_Pearlsian_Gulf.jpg

  7. What is Karst? • Karst topography is a landscape shaped by the dissolution of a layer • Usually layers of soluble bedrocklike limestone or dolomite. • Virginia Tech uses dolostone… for what?

  8. http://www.purdue.edu/envirosoft/inject/images/karst.gif

  9. Relevance To Virginia • All of these areas in red are affected by karst topography http://www.dmme.virginia.gov/DMR3/images/karstmap.gif

  10. What Can We Do? We Can’t Stop It, But We Can Slow It Down… • Prevent acidic conditions in our watershed • Reduce soil erosion • Reduce urban and agricultural water runoff • Waste disposal and pollution must cease • We don’t want the NRV area to look like this… http://en.wikipedia.org/wiki/File:Burren_karst.jpg

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