1. (Discussion and Worksheet – Groundwater Part 3)
Monday March 5, 2018
(Discussion and Worksheet – Groundwater Part 3)

2. The Launch Pad
Monday, 3/5/18
The most common method for removing groundwater is the ___, a hole bored into the ______________.
Pumping a well can cause a ________ (lowering) of the water table, forming a ______________ in the water table.
well
zone of saturation
drawdown
cone of depression

3. We will take Quiz 12 on Wednesday!
Announcements
We will take Quiz 12 on Wednesday!

4. F1 N/A F2 F3 F4 Assignment 2/26 2/27 2/28 3/1
Summative or Formative #
Date Issued
Gone Missing Day
Last Day Accepted
Worksheet - Groundwater (Part 1) F1
2/26
N/A
Save for eResearch Paper
Worksheet -What Is Groundwater? and Groundwater Flow Part 1) F2
2/27
Video Worksheet - What Is Groundwater?
Groundwater Flow – Part 1 F3
2/28
Worksheet - Groundwater (Part 2) F4
3/1

5. Geologic Work of Groundwater
Groundwater is often mildly acidic as it contains a weak solution of carbonic acid.
This acidic nature will dissolve the calcite in limestone.
Caverns are formed by dissolving rock beneath the Earth’s surface.
Caverns form in the zone of saturation.

6. Features Found Within Caverns
The deposition of dripstone is not possible until the caverns are above the water table in the unsaturated zone.
Dripstone is composed of calcite deposited as dripping water evaporates.
Common dripstone features include stalactites (hanging from the ceiling) and stalagmites (growing upward from the floor.)

7. Karst Topography
Karst topography refers to landscapes that to a large extent have been shaped by the dissolving power of groundwater.
These areas have been sculpted by dissolving rock at or near Earth’s surface.

8. Karst Topography Common features of Karst topography include:
sinkholes, which are surface depressions. Sinkholes form by dissolving bedrock and cavern collapse.
caves and caverns present underground.
These areas lack good surface drainage.

9. A Karst Landscape
With the passage of time, underground caverns grow larger and the number and size of sinkholes increase.
Collapse of caverns and coalescence of sinkholes form larger, flat-floored depressions.
Eventually, solution activity may remove most of the limestone from the area, leaving only remnants.
Figure 5.39 C

10. A Karst Landscape
With the passage of time, underground caverns grow larger and the number and size of sinkholes increase.
Collapse of caverns and coalescence of sinkholes form larger, flat-floored depressions.
Eventually, solution activity may remove most of the limestone from the area, leaving only remnants.
Figure 5.39 C

11. A Karst Landscape
Figure 5.39 C

12. A Karst Landscape
Figure 5.39 C

13. A Karst Landscape
Figure 5.39 C

14. Karst Landscape Areas in the United States
Figure 5.39 C

15. What is an Aquifer?
An aquifer is defined as any geological formation containing or conducting ground water, especially one that supplies the water for wells, springs, etc.

16. What is an Aquifer?