A geological formation that contains significant groundwater but has such low permeability that it is incapable of transmitting significant quantities to wells or springs (such as a compact clay layer) is termed an:
Options:
(A) Aquiclude
(B) Aquifer
(C) Aquifuge
(D) Artesian spring
Answer Key:
A
Step-by-Step Solution & Explanation
- Aquifer: Permeable geological formation that stores and yields economical quantities of water (e.g., sand, gravel).
- Aquiclude: Porous, contains water, but completely impermeable to economic yield (e.g., solid clay).
- Aquifuge: Neither porous nor permeable (e.g., unfractured granite).
- Aquitard: Semi-pervious leaky formation. Option A is correct.