answersLogoWhite

0

Water infiltrates the ground and seeps downwards through the soil.

When it meets a layer of rock, then

(i) if the rock is highly permeable by nature (sandstones, etc) the water will saturate the rock. It will also saturate highly fractured rock, so it's possible for igneous rock such as granite to form an aquifer. The best combination is highly fractured, permeable rock.

(ii) if the rock is impermeable (unfractured granite, for example) the water will "pool" on top of this - it is a confining aquifer.

So we can get permeable rock layers (saturated with water) sitting above impermeable layers (that prevent the water sinking any lower) , and this is how we get groundwater.

It's possible for groundwater to flow, and a lot of groundwater eventually flows into streams and rivers.

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

How can an aquifer be recharged naturally after a drought?

An aquifer can be recharged naturally after a drought through processes such as increased precipitation, infiltration of surface water, and reduced withdrawals from the aquifer. These factors help replenish the water stored in the aquifer over time. It's important to manage water resources sustainably to ensure aquifers are able to recharge naturally.


What is the South American Guarani Aquifer System?

An extremely large underground aquifer (supply of groundwater). It is estimated to be able to provide drinking water for the earth for at least 200 years, and some estimates are much higher (1600 years). Because some people predict water shortages in the near future, the management of the aquifer, and others like it, is a concern.


What is the difference between an aquifer and an aquitard?

There really is no practical difference. The water table is what you are able to access, through a well, distance to water. The aquifer is the geologic formation that you are accessing. Like the Edwards or Ogalla, one is practical, the other is geologic.


How do cacti reduce water loss?

Cactus are able to conserve water due to their stems. They have stems that are able to store water for when it is needed.


How do artesian wells use pascal's law?

Artesian wells use Pascal's law by utilizing the pressure of underground water to push water up to the ground surface without the need for pumping. The pressure is generated by the weight of the water in an underground aquifer combined with the impermeable layers that confine the water. When a well is drilled into an artesian aquifer, the water is able to flow upwards due to the pressure created by Pascal's law.


Do donkeys store water?

Donkeys do not store water like camels. They are not able to retain water for long periods of time and rely on frequent access to fresh water sources to stay hydrated.


What is found in the hump of a cattle and why is it stored there?

It is used to store water, camels can go for many days without water due to being able to store it in there humps.


Why are wind and moving water able to move sediment?

By the water moving on it makes it get wet and causes it to move


How does cactus adapd to desert life?

Cacti are able to store water in their fleshy stems.


What is so fascinating about fish?

What makes them able to breathe in water, their color, and shape.


Where could I get a water purifier?

You can get a water purifier at any home appliance store or harware store. Many super stores will also have this item. You may also be able to find this online.


What is a cactus adaptation in the desert?

Most cacti are able to store water in their stems for periods of drought.