GEOLOGY

Detailed explanation-1: -This is called an artesian well. The aquifers that receive and discharge the largest quantities of groundwater are unconsolidated materials such as sand and gravel. These aquifers occur widely and discharge groundwater partly through springs, but mostly through evaporation and seepage.

Detailed explanation-2: -This rock wall represents an “outcrop” (or location where the rock intersects the land surface) of an aquifer. The point where the ground water emerges into view is called a “seep” or “spring".

Detailed explanation-3: -A spring is a natural opening in the ground where water flows directly from the aquifer to the earth’s surface. This fresh water comes from rainfall that soaks into the ground. It is referred to as groundwater. Groundwater provides the majority of the region’s drinking water.

Detailed explanation-4: -Springs occur when water pressure causes a natural flow of groundwater onto the earth’s surface. As rainwater enters or “recharges” the aquifer, pressure is placed on the water already present.

Detailed explanation-5: -A spring occurs where groundwater emerges onto the land surface via a fracture, contact zone or other opening. Groundwater occurs in permeable (porous) rock material above a layer of impermeable rock material, and is replenished (recharged) by rain or melted snow that seeps into the ground.