The conditions that lead to sinkholes can lead to many problems such as those shown in the class’s video on sinkholes from CNN. The most damage from sinkholes tends to occur in Florida, Texas, Alabama, Missouri, Kentucky, Tennessee, and Pennsylvania (Welsh, 2013). As we saw in the CNN video, it brought to our attention that Florida is over a large aquifer that isn’t being replaced with fresh water, as we take out water. A sinkhole is basically an area of the ground doesn’t have a natural surface drainage during the rains due to the dissolving of that part of the ground. Due to this, all water will stay inside the hole and can then drain down into the subsurface underground.
|As we can see with this diagram, the making of a sinkhole is complex. The sinkhole forms when water dissolves the limestone layer around the aquifer due to the acidic nature of the water as it is filtered through the layers of the soils. Vibrations from construction or even as simple as a mine blast, which is common around here could shake the ground enough for formation of the sinkhole|
|Karst in areas makes the area prone to more sinkholes and as we can see on this map that Florida, Texas, Alabama, Missouri, Kentucky, Tennessee, and Pennsylvania all are states with a high probability of sinkholes. Collapses do happen in any kind of area and are not typically just limited to the areas that have karst. Old mines, such as in Nevada, Montana or other states can collapse and cause havoc. We do have quite a few old mines that are abandoned out west that can cause serious issues. Leaky pipes cause problems because we are putting more water into the ground.
These photos are an example of what a sinkhole would look like in civilization. Notice how the cars are inside and the sinkhole will have to be filled with materials to fix the problem. There is sinkhole insurance for most vehicles out there(Welsh,2013).
In the end, sinkholes can be prevented by knowledge, mitigation, and efforts involving the education of the residents in those areas. A sinkhole can happen anywhere, it isn’t just one part of the country.
Cooper, A. (Producer). (2013, March 4). CNN Anderson Cooper 360[Video file]. Retrieved April 28, 2017, from https://www.youtube.com/watch?v=6RC9LP9lq5Y
Welsh, J. (2013, March 06). These Are The Places You Are Most Likely To Be Swallowed By A Sinkhole. Retrieved April 30, 2017, from http://www.businessinsider.com/where-youll-be-swallowed-by-a-sinkhole-2013-3
– Tommi Asylum