FLORIDA SINKHOLES (Dolines) On February 28th, 2013, a Florida man disappeared into the ground along
FLORIDA SINKHOLES (Dolines)On February 28th, 2013, a Florida man disappeared into the ground along with his room and his belongings. His brother, Jeremy Bush, desperately tried to save the man but his effort was fruitless as Jeff Bush, was completely consumed and trapped. The only thing Jeremy was able do was to bear witness as a big hole steadily grew bigger as it slowly demolished his home. Local authorities were unable to locate the body and a careful and calculated demolition took place on March 3rd, 2013.The event that took place on this tragic day was a formation of a Cover-Collapse Sinkhole in Seffner, Florida USA. Sinkholes of variant types are common in Florida as it lies on layers of limestone bedrocks. Limestone and similar carbonate rocks can be eaten away over an extended period of time if it is exposed to acidic rain or by certain water changes caused by human activities.In a Cover-Collapse Sinkhole, the soil above the limestone existed as a bridge as the limestone beneath was dissolving. When the weight bearing on the soil is too much then it collapses and creates a sinkhole. This differs from other types of sinkholes such as the Limestone Solution sinkholes & the Cover-Subsidence sinkholes as it happens abruptly instead of developing slowly over time. The ratio of a Cover-Collapse Sinkhole is 1-2 cave collapse sinkholes to more than 1,400 sinkholes identified in Florida. Those identified sinkholes were detected by the use of geophysical methods such as; gravity, seismograph, electrical resistivity, magnetic, & electromagnetic radars.Due to commonality of sinkholes in Florida, it is recommended to look for warning signs such as sagging of fence posts, doors & windows failing to close properly, wilting of circular areas of vegetation, cloudy waters being pumped from wells, & cracks in walls.~eraThe photo is an aerial view of the sinkhole during demolition.Photo Source: ABC NewsSources:- http://bit.ly/12qEqsk- http://bit.ly/W1J1MG- http://bit.ly/12onwe1- http://bit.ly/WCD85M- http://bit.ly/WFU0bX- http://bit.ly/Ys3OIT- http://bbc.in/XRWG6tCheck out our previous post on this subject at:- http://on.fb.me/XVfrpC -- source link
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