Last update: September 20th, 2019 at 2:00 am
Today’s Image of the Day from NASA Earth Observatory features a view of Florida from the International Space Station (ISS).
The photo highlights the shallow, lightly colored waters surrounding the Florida Keys.
The majority of Florida’s land surface is lying over thick carbonate deposits, which formed the Floridan aquifer system.
For the most part, sand and clay deposits prevent carbonates from being exposed at the surface.
In areas where these deposits are thin or non-existent, however, much of the carbonate has dissipated. This results in sinkholes that fill up with groundwater and form lakes.
Image Credit: NASA Earth Observatory