Potential groundwater resources and decrease in natural flow of wells in Dakhla Oases, Western Deser...

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" Potential groundwater resources and decrease in natural flow of wells in Dakhla Oases, Western Desert, Egypt "
H. M. R. El Ghonemy S. N. Davis

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	1112466
Doc. No	:	TLpq303682679
Main Entry	:	H. M. R. El Ghonemy
	:	S. N. Davis
Title & Author	:	Potential groundwater resources and decrease in natural flow of wells in Dakhla Oases, Western Desert, Egypt\ H. M. R. El GhonemyS. N. Davis
College	:	The University of Arizona
Date	:	1988
student score	:	1988
Degree	:	M.S.
Page No	:	117
Abstract	:	The Nubian Aquifer System is the primary aquifer in the Western Desert of Egypt. The Dakhla Oases are among five other oases relying on this aquifer as the only source of water. The water-bearing layers are mainly porous Cretaceous sandstones overlain by predominantly marine shales and clays of Late Cretaceous to Lower Paleocene age. Ground water occurs under artesian conditions causing the wells to flow freely for both human and agricultural needs. The present annual ground-water discharge in Dakhla is 2.09 usd\timesusd 10 cubic meters. The natural movement of ground water into the Dakhla area is negligible in terms of recharge to the artesian zones. Extensive extraction from the deep layers has led to a decrease in the piezometric pressure, causing vertical flow from the upper layers. The decrease in flow of the artesian wells is due to this decline in pressure. Egypt is in need of its ground-water supply. In the context of population growth and greater demands for water, the value of water in Egypt will rise in the near future.
Subject	:	Earth sciences
	:	Geology
	:	Hydrology
	:	Hydrology