Lecture 14

And Moses lifted up his hand,And with his rod he smote the rock twice:

And the water came out abundantly:And the congregation drank and their beasts also.

- Deuteronomy 6:11

Groundwater

Webpage for course (daytime)

Webpage for course (nighttime)

Hydrologic Cycle

Water moves THROUGH the rocks

Hydrologic Cycle

Porosity

Permeability

Porosity

Permeability

Sandstone Shale

Aquifer

Aquiclude

So lets talk about the Water Table…

Hydraulic gradient

Springs

Fig. 10.3

Fig. 10.7

Lets pump some water…

Lets pump a lot of water…

Cone of Depression

Fig. 10.10

… near the coast

Salt water incursion

here is another situation …

Confined Aquifer

Groundwater

You can use it.

You can overuse it.

You can abuse it.

Groundwater abuse

Fig. 10.16

GroundwaterLimestone caverns

Geodes

http://fairiesonthewalk.com.au/shop/index.php%3FcPath%3D45&usg

Fig. 10.23

Groundwater

Karst Topography

http://www.virginiacaves.org/lok/ccvup56.htm&usg

Sinkholes

Fig. 10.26B

Groundwater

“water witching” (dousing)