Natural discharge: A key to sustainable utilization of fossil groundwater

Sultan, M.; Yan, Eugene; Sturchio, Neil C.; Wagdy, Ahmad; Gelil, K. Abdel; Becker, R. H.; Manocha, N.; Milewski, A.

doi:10.1016/j.jhydrol.2006.10.034

Cited by 91 publications

(59 citation statements)

References 17 publications

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“…The extensional faults also could have facilitated the mixing of ascending Nubian aquifer groundwater with groundwater in overlying aquifers over time (Sultan et al, 2007). The observed similarities in isotopic compositions of groundwater from subsided blocks and springs from the same area are consistent with this suggestion.…”

Section: Discussion and Summarysupporting

confidence: 67%

“…Data were included for fi eld samples from this study (Table 2; ~24 samples), fi eld samples from our earlier studies (40 samples; Sultan et al, 2000Sultan et al, , 2007, existing well data (~180 wells) administered by the Egyptian Ministry of Water Resources and Irrigation (EMWRI, 2004), and a compilation of well locations and names (up to 1995) extracted from topographic sheets (Egyptian General Survey Authority [EGSA], 1996a[EGSA], , 1996b[EGSA], , 1996c[EGSA], , 1996d[EGSA], , 1996e, 1996f, 1997a[EGSA], , 1997b[EGSA], , 1997c[EGSA], , 1997d); (7) resistivity data from subsided successions within the basement complex (Wadi Al Nakheil) and from others fl ooring the coastal plain (Wadi Queih); and (8) …”

Section: Figure 2 (A) Color Composite Of Landsat Thematic Mapper (Tmmentioning

confidence: 99%

“…Many of the arid and semiarid parts of the world are fortunate in having large amounts of fresh water stored in extensive aquifers that stretch for hundreds to thousands of kilometers across political boundaries; these are largely nonrenewable aquifers, commonly referred to as "fossil" aquifers. Fossil aquifers are believed to have been recharged under previous wet climatic periods (e.g., Sturchio et al, 2004) but may have also received local meteoric contributions in intervening dry climatic periods (such as at present; Sultan et al, 2007Sultan et al, , 2008a. These aquifers are of extreme importance to the general population of these countries given the prevailing arid conditions and the increasing need for fresh-water supply in these areas.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Red Sea rifting controls on aquifer distribution: Constraints from geochemical, geophysical, and remote sensing data

Sultan

Ahmed

Metwally

et al. 2011

Geological Society of America Bulletin

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Section: Discussion and Summarysupporting

confidence: 67%

Section: Figure 2 (A) Color Composite Of Landsat Thematic Mapper (Tmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Red Sea rifting controls on aquifer distribution: Constraints from geochemical, geophysical, and remote sensing data

Sultan

Ahmed

Metwally

et al. 2011

Geological Society of America Bulletin

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“…To the south of El Minia Governorate, the Pleistocene aquifer at Wadi El Assiuti (which is a part of Assiut Governorate located east of the Nile) has proved to have considerable recharge (75 %) from the depleted paleowater of the deep Nubian aquifer. The remaining 25 % comes from the flash floods (Sultan et al 2007;Korany et al 2013). This suggests that the degree of isotopic depletion increases in localities to the south of El Minia Governorate.…”

Section: Stable Isotopes Of Hydrogen and Oxygen (Dd And D 18 O)mentioning

confidence: 99%

Assessment of the Hydrogeochemical Processes Affecting Groundwater Quality in the Eocene Limestone Aquifer at the Desert Fringes of El Minia Governorate, Egypt

Ibrahim

Lyons

2016

Aquat Geochem

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El Minia Governorate is within the Nile Valley and is surrounded by the Eocene limestone plateaus from the east and west. The present study focuses on the hydrogeochemistry of the Eocene limestone aquifer in both the eastern and western desert fringes of El Minia. Thirty groundwater samples from the Eocene aquifer (east and west of the Nile) and seven samples from post-Eocene aquifers in this area were analyzed to assess the groundwater geochemistry, isotopic compositions and the subsurface hydrology. Samples obtained from depths of 24-120 m were measured for major components, nutrients, oxygen-18, deuterium and carbon-13. The groundwater TDS (total dissolved solids) concentrations ranged from 530 to 2788 and 453 to 1903 mg/l at the western and eastern desert fringes, respectively. Values of Eocene aquifer water d 18 O ranged from -8.31 to -0.44 and -2.07 to 0.55 %, and those of water dD ranged from -63.6 to -2.32 and -9.03 to 5.03 % for the Eocene aquifer at the western and eastern side, respectively. Chemical analysis shows that the main chemical facies of the Eocene water are Ca-Mg-HCO 3 and Ca-SO 4 . The chemical and isotopic data show that water-rock interaction (calcite dissolution and silicate weathering) and mixing between different water types control the major ion chemistry of Eocene aquifer water. The chemical composition of Eocene water has also evolved by evaporation and ion exchange. The present study indicates the need for regional chemical and isotopic study for the Eocene aquifer along the Nile Valley region to delineate the sources of recharge to this important aquifer.

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“…The dense networks of valleys collect precipitation over extensive areas and channel it downstream through the main valleys causing flash floods. It has been demonstrated that in areas with similar geologic, hydrologic, and climatic settings in the Eastern Desert of Egypt, precipitation over the basement complex highlands is channeled downstream as surface runoff in valley networks and as groundwater flow in the alluvial sediments underlying these valleys, in fractured basement, and in down-dropped sedimentary units within the basement complex (Sultan et al 2007(Sultan et al , 2008(Sultan et al , 2011Amer et al 2013). We envision a similar conceptual model for the Feiran watershed.…”

Section: Introductionmentioning

confidence: 99%

Structural Controls on Groundwater Flow in Basement Terrains: Geophysical, Remote Sensing, and Field Investigations in Sinai

et al. 2015

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An integrated [very low frequency (VLF) electromagnetic, magnetic, remote sensing, field, and geographic information system (GIS)] study was conducted over the basement complex in southern Sinai (Feiran watershed) for a better understanding of the structural controls on the groundwater flow. The increase in satellite-based radar backscattering values following a large precipitation event (34 mm on 17-18 January 2010) was used to identify water-bearing features, here interpreted as preferred pathways for surface water infiltration. Findings include: (1) spatial analysis in a GIS environment revealed that the distribution of the water-bearing features (conductive features) corresponds to that of fractures, faults, shear zones, dike swarms, and wadi networks; (2) using VLF (43 profiles), magnetic (7 profiles) techniques, and field observations, the majority (85 %) of the investigated conductive features were determined to be preferred pathways for groundwater flow; (3) northwest-southeast-to north-south-trending conductive features that intersect the groundwater flow (southeast to northwest) at low angles capture groundwater flow, whereas northeast-southwest to east-west features that intersect the flow at high angles impound groundwater upstream and could provide potential productive well locations; and (4) similar findings are observed in central Sinai: east-west-trending dextral shear zones (Themed and Sinai Hinge Belt) impede south to north groundwater flow as evidenced by the significant drop in hydraulic head (from 467 to 248 m above mean sea level) across shear zones and by reorientation of regional flow (south-north to

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Natural discharge: A key to sustainable utilization of fossil groundwater

Cited by 91 publications

References 17 publications

Red Sea rifting controls on aquifer distribution: Constraints from geochemical, geophysical, and remote sensing data

Red Sea rifting controls on aquifer distribution: Constraints from geochemical, geophysical, and remote sensing data

Assessment of the Hydrogeochemical Processes Affecting Groundwater Quality in the Eocene Limestone Aquifer at the Desert Fringes of El Minia Governorate, Egypt

Structural Controls on Groundwater Flow in Basement Terrains: Geophysical, Remote Sensing, and Field Investigations in Sinai

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