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this video is aimed at giving you a general overview
but you can check the video description for added information
A sinkhole,
also known as a sea ball hole, cenote, sink, swallet, swallow hole, or doline
is a depression
or hole in the ground caused by some form of collapse of the surface layer.
There are 3 major types of sinkholes:
1. Cover-Subsidence Sinkholes
2. Cover-collapse Sinkholes
and 3. Dissolution Sinkholes
The one you will see is the Dissolution Sinkhole
caused by karst process –
which is the chemical dissolution of soluble rocks
such as limestone, dolomite, and gypsum.
A dissolution sinkhole is the same as a solution sinkhole
Dissolved carbonate rock is carried away from the surface
and small depression gradually forms.
Rainfall and surface water will percolate through joints of the rocks.
Sinkholes can vary from a few feet
to hundreds of acres
and from less than 1 to more than 100 feet deep.
Some are shaped like shallow bowls or saucers
whereas others have vertical walls;
some hold water and form natural ponds.
Typically, sinkholes form slowly that little change is noticeable,
but they can form suddenly when a collapse occurs.
Such a collapse can have a dramatic effect if it occurs in an urban setting.
Sinkholes that capture drainage
can hold it into large limestone caves
and the caves may drain into tributaries of larger river
as well as into the sea.
Most Importantly,
If the sinkhole is blocked, this may lead to ponding water,
wetlands and flooding.
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