Question

What is the function of aquiclude in groundwater recharge systems?

• A. They facilitate the flow of groundwater
• B. They increase the recharge of the groundwater
• C. They act as a hindrance to ground water flow
• D. They store and transmit groundwater

Hint:

• An aquiclude is an impermeable or very low permeability geological layer.
• It can store water but does not allow significant water movement through it.
• Its primary function is to act as a barrier or hindrance to groundwater flow.
• Aquicludes form confining layers for confined aquifers and can cause perched water tables.

Answer 1

The Correct Option is C

To determine the function of an aquiclude in groundwater systems, we need to define what an aquiclude is and how it interacts with groundwater flow.

1. Understanding the Concepts:

- Aquiclude: A geological formation that is essentially impermeable to water. It can absorb water, but it cannot transmit it at rates sufficient to supply a well or spring. It acts as a barrier to groundwater flow.
- Aquifer: A geological formation that can store and transmit a significant quantity of groundwater.
- Groundwater Recharge: The process by which water infiltrates from the surface into the saturated zone of an aquifer.

2. Function of Aquiclude:

Aquicludes have low permeability, which means that water cannot easily flow through them. They act as confining layers, restricting the movement of groundwater and separating aquifers. They impede the flow of groundwater.

3. Evaluating the Options:

- Aquicludes do not facilitate the flow of groundwater; they impede it.
- Aquicludes do not increase recharge; they hinder water from reaching the aquifer.
- Aquicludes do act as a hindrance to groundwater flow.
- Aquicludes do not store and transmit groundwater; they are impermeable.

Final Answer:

They act as a hindrance to ground water flow.