+1 vote
in Irrigation Engineering by (75.2k points)
The geological formation which yields only insignificant quantity of groundwater is _____________

(a) aquifer

(b) aquifuse

(c) aquiclude

(d) aquitard

This question was posed to me in my homework.

My question is from Aquifers and Their Type-1 topic in chapter Ground Water for Irrigation through Wells and Tubewells of Irrigation Engineering

1 Answer

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by (106k points)
Right choice is (d) aquitard

To explain: The geological formations which are porous and contain a good amount of water but does not yield water freely to wells due to its lesser permeability is called aquitard. The water yield from such a formation is insignificant. Sandy clay is an example of the aquitard.

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