Impermeable — Material that does not permit fluids to pass through it.
So my sister shows me this posh new water called FIJI. On the back is a little graphic showing where the water comes from. So apparantly it rains unto a volcano, and then goes through the dirt, and then somehow magically gets past this barrier labeled “impermeable rock”, and then shoots out in the form of a FIJI bottle. So how exactly, I wonder, does water get through a material that, by definition, doesn’t allow water through it?
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My boyfriend said the same thing. I thought he made a good point until I looked up the defenition of an aquifer. Aquifer (artesian): An aquifer that is bounded above and below by impermeable rock or sediment layers. The water in the aquifer is also under enough pressure that, when the aquifer is tapped by a well, the water rises up the well bore to a level that is above the top of the aquifer. The water may or may not flow onto the land surface.
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Aquifer (confined): An aquifer that is bounded above and below by impermeable rock or sediment layers. There may or may not be enough pressure in the aquifer to make it an “artesian aquifer”.
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Aquifer (unconfined): An aquifer that is not overlain by an impermeable rock unit. The water in this aquifer is under atmospheric pressure and is recharged by precipitation that falls on the land surface directly above the aquifer.
Impermeable means that it has a lot of poures like your face has a lot of poures!!!!!
thats a very good point so what is so special about artesian water