عنوان

Potential groundwater resources and decrease in natural flow of wells in Dakhla Oases, Western Desert, Egypt

Number

TLpq303682679

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

Potential groundwater resources and decrease in natural flow of wells in Dakhla Oases, Western Desert, Egypt

General Material Designation

[Thesis]

First Statement of Responsibility

H. M. R. El Ghonemy

Subsequent Statement of Responsibility

S. N. Davis

Name of Publisher, Distributor, etc.

The University of Arizona

Date of Publication, Distribution, etc.

1988

Specific Material Designation and Extent of Item

117

Dissertation or thesis details and type of degree

M.S.

Body granting the degree

The University of Arizona

Text preceding or following the note

1988

Text of Note

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.

Earth sciences

Geology

Hydrology

Hydrology

H. M. R. El Ghonemy

S. N. Davis

Electronic name

p

[Thesis]

276903

a

Y