Use of Solute and Isotopic Composition of Ground Water to Constrain the Ground Water Flow System of the Azraq Area, Jordan

Ground Water - Tập 36 Số 2 - Trang 361-365 - 1998
Nizar Abu-Jaber1, Ali Jawad Ali2, Khaldoon Al Qudah2
1Department of Earth and Environmental Sciences; Yarmouk University, Irbid 21163, Jordan
2UNESCO Chair for Desert Studies and Desertification Control, Yarmouk University, Irbid, 21163, Jordan,

Tóm tắt

AbstractThis study shows that hydrological systems in arid areas where water level data are incomplete can be better understood and constrained by using chemical and isotopic data. These constraints significantly alter the conceptual hydrological model of the Azraq area.Previous studies, based on water level data, suggest that water in the Azraq oasis is derived from two major piezometric highs; the western basalt aquifer to the northwest and the Tulul el Ashaquif highlands to the northeast of the oasis. Water from the Tulul el Ashaquif aquifer is also considered to drain to a piezometric low at Ruwaishid to the east, and then into deeper aquifers.Chemical data from this study show that the northwest basalt aquifer provides most of the water (80‐85 %) to the Azraq oasis. Water from the Tulul el Ashaquif supplies a relatively small proportion, but due to its high solute content, imparts its chemical signature on the oasis water. This study has shown that water from Tulul el Ashaquif are not supplied to the Ruwaishid area, as previously thought.Stable isotopic data show that each piezometric high contains water which originated in a distinct climatic setting. Both water types are poor in tritium. Traces of tritium at the Azraq oasis and at Ruwaishid indicate some recent local recharge.

Từ khóa


Tài liệu tham khảo

ACSAD (Arab Center for the Study of Acid Zones, 1983, Arabic

10.1007/BF00770433

CES, 1993, Groundwater investigation in the Azraq Basin

Drury D.1993.The hydrogeology of the Azraq Basin Northeast Badia Jordan.M.Sc. thesis Dept. of Geology University College London .

10.1016/B978-0-444-41780-0.50009-2

10.1016/B978-0-444-41780-0.50007-9

Gibbs B.1993.Hydrogeology of the Azraq Basin Northeast Badia Jordan.M.Sc. thesis Dept. of Geology University College London .

GITEC Consult GMBH, 1995, Ground water investigation in the Hammad and Sirhan Basins

Kronfeld J., 1992, Natural isotopes and water stratification in the Judea Group aquifer (Judean Desert), Isr. J. Earth Sci, 39, 71

Noble P.1994.Quantification of recharge to the Azraq Basin Northeast Badia Jordan.M.Sc. thesis Dept. of Geology University College London .

Plummer L.N. E.C.Prestemon andD.I.Parkhurst.1991.An interactive code (NETPATH) for modeling Net geochemical reactions along a flow path.U.S. Geological Survey Water Investigations Report91–4078.

Wood W., 1988, The Geology of North America: Hydrogeology, 353

10.2113/gsecongeo.85.6.1226

Thông tin
Thông tin xuất bản

Ground Water

Tập 36 Số 2

361-365

Thông tin tác giả