The interaction of two major old water bodies and its implication for the exploitation of groundwater in the multiple aquifer system of the central and northern Negev, Israel

Kronfeld, J.; Rosenthal, E.; Weinberger, G.; Flexer, A.; Berkowitz, Brian

doi:10.1016/0022-1694(93)90191-b

Cited by 21 publications

(22 citation statements)

References 9 publications

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“…This does not indicate very old water since groundwater ages in deserts are generally higher than 10 ka (Bentley et al, 1986;Kronfel et al, 1993;Sultan et al, 1997;Edmunds et al, 2006;Hagedorn, 2015). These ages do not represent the residence time of water due to the input of 14 C-deficient DIC derived from dissolution of old carbonates.…”

Section: Origin and Residence Time Of Groundwatermentioning

confidence: 93%

Origin of water in the Badain Jaran Desert, China: new insight from isotopes

Wang

et al. 2017

Hydrol. Earth Syst. Sci.

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Abstract. To better understand the origin of water in the Badain Jaran Desert, China, water samples were collected from lakes, a spring and local unconfined aquifer for analyses of radiocarbon (14C), tritium (3H), stable hydrogen and oxygen isotope ratios (δ2H – δ18O), and d-excess values ( = δ2H – 8δ18O). A series of evaporation experiments were also conducted in the desert to examine how the isotopic signature of water may change during evaporation and infiltration under local environmental conditions. The results show that the lakes in the southeastern sand dune area are fed by groundwater discharging into the lakes and that local groundwater, on the other hand, is derived primarily from modern meteoric precipitation in the region. Although dissolved inorganic carbon (DIC) in groundwater yielded very old radiocarbon ages, the presence of detectable amounts of tritium in groundwater samples, together with their δ2H, δ18O and d-excess characteristics, strongly suggests that the old radiocarbon ages of DIC do not represent the residence time of water in the aquifer but are the result of addition of old DIC derived from dissolution of ancient carbonates in the aquifer. The data do not support the hypothesis that the water in the Badain Jaran Desert was sourced in remote mountains on the northern Tibetan Plateau. This study also finds no support for the hypothesis that present-day water resources in the desert were recharged by the precipitation that fell in the past during the early Holocene when the climate was much wetter than today. Instead, this study shows that both groundwater and lake water originated from meteoric precipitation in the region including mountainous areas adjacent to the desert under the modern climatic condition.

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Section: Origin and Residence Time Of Groundwatermentioning

confidence: 93%

Origin of water in the Badain Jaran Desert, China: new insight from isotopes

Wang

et al. 2017

Hydrol. Earth Syst. Sci.

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“…Considering the contribution of numerous authors (Issar et al, 1972;Kroitoru, 1980;Kronfeld et al, 1993;Rosenthal et al, 1998;Abd el Samie and Sadek, 2001) and in view of structural evidence by Bartov (1974), Eyal et al (1987), Kashai et al (1987) and Jenkins (1990), the pattern of paleo-groundwater flow in Sinai and in the Negev is controlled by structural and lithostratigraphic factors as summarized below.…”

Section: The Flow Patternmentioning

confidence: 96%

The hydrochemical evolution of brackish groundwater in central and northern Sinai (Egypt) and in the western Negev (Israel)

Rosenthal

Zilberbrand

Livshitz

2007

Journal of Hydrology

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“…The origin of the increased salinity has been the focus of several studies. Two mechanisms have been proposed: (1) Limited flow in the confined and unflushed aquifer, which results in increased salinity (Goldschtof and Shachnai ; Guttman , ), and (2) mixing between the deeper saline Kurnub water and the fresh water end member, which characterizes the Judea Group aquifer in the northern Be'er Sheva Basin (Mercado ; Rosenthal and Flexer ; Weinberger et al , ; Rosenthal et al , ; Kronfeld et al ; Weinberger and Rosenthal , ; Minster et al ).…”

Section: Hydrogeological Settingmentioning

confidence: 99%

Concurrent Salinization and Development of Anoxic Conditions in a Confined Aquifer, Southern Israel

Burg¹,

Gavrieli

Guttman

2016

Groundwater

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An ancient, brackish, anoxic, and relatively hot water body exists within the Yarqon-Tanninim Aquifer in southern Israel. A hydrogeological-geochemical conceptual model is presented, whereby the low water quality is the outcome of three conditions that are met simultaneously: (1) Presence of an organic-rich unit with low permeability that overlies and confines the aquifer; the confining unit contains perched horizons with relatively saline water. (2) Local phreatic/roofed conditions within the aquifer that enable seepage of the organic-rich brackish water from above. The oxidation of the dissolved organic matter in the seeping water consumes the dissolved oxygen and continues through bacterial sulfate reduction, with H S as a product. These exothermic reactions result in some heating. (3) The seeping water comprises a relatively large portion of the water volume. In the presented case study, the latter condition first developed in the Late Pleistocene following climate change, which led to a dramatic decline in recharge. Consequently, water flow in the local basin has nearly ceased, as evident by old water ages, specific isotopic composition, and nearly equipotential water levels. The continuous seepage from above into the almost stagnant water body has resulted in degraded water quality. Seepages of organic-rich brackish water exist at other sites throughout the aquifer but have limited impact on the salinity and redox conditions due to the dynamic water flow, which flushes the seeping water, that is, the third condition is not met. The coexistence of the above three conditions may explain the development of anoxic and saline groundwater in other aquifers worldwide.

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The interaction of two major old water bodies and its implication for the exploitation of groundwater in the multiple aquifer system of the central and northern Negev, Israel

Cited by 21 publications

References 9 publications

Origin of water in the Badain Jaran Desert, China: new insight from isotopes

Origin of water in the Badain Jaran Desert, China: new insight from isotopes

The hydrochemical evolution of brackish groundwater in central and northern Sinai (Egypt) and in the western Negev (Israel)

Concurrent Salinization and Development of Anoxic Conditions in a Confined Aquifer, Southern Israel

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