A geological formation that contains water but is incapable of transmitting significant quantities under normal hydraulic gradients (e.g. clay) is called an:
Options:
(A) Aquiclude
(B) Aquifer
(C) Aquifuge
(D) Artesian basin
Answer Key:
A
Step-by-Step Solution & Explanation
Geological formations:
• Aquifer: Stores and transmits water in usable quantities (sand, gravel).
• Aquiclude: Highly porous, contains water, but essentially impermeable (clay).
• Aquifuge: Neither contains nor transmits water (solid granite).
• Aquitard: Slow, semi-pervious transmitting layer (sandy clay).