Recharge Areas and Geochemical Evolution of Groundwater in an Alluvial Aquifer System in the Sultanate of Oman

Matter, J.M.; Waber, H.N.; Loew, S.; Matter, A. (2005). Recharge Areas and Geochemical Evolution of Groundwater in an Alluvial Aquifer System in the Sultanate of Oman. Hydrogeology journal, 14(1-2), pp. 203-224. Verlag Heinz Heise 10.1007/s10040-004-0425-2

[img] Text
art%3A10.1007%2Fs10040-004-0425-2.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (795kB) | Request a copy

A regional hydrogeochemical model was developed to evaluate the geochemical evolution of different groundwaters in an alluvial aquifer system in the Interior of Oman. In combination with environmental isotopes the model is able to extract qualitative and quantitative information about recharge, groundwater flow paths and hydraulic connections between different aquifers. The main source of water to the alluvial aquifer along the flow paths ofWadi Abyadh andWadi M’uaydin in the piedmont is groundwater from the high-altitude areas of the Jabal Akhdar and local infiltration along the wadi channels. In contrast, the piedmont alluvial aquifer alongWadi Halfayn is primarily replenished by lateral recharge from the ophiolite foothills to the east besides smaller contributions from the Jabal Akhdar and local infiltration. Further down gradient in the Southern Alluvial Plain aquifer a significant source of recharge is direct infiltration of rain and surface runoff, originating from a moisture source that approaches Oman from the south. The model shows that the main geochemical evolution of the alluvial groundwaters occurs along the flow path from the piedmont to the Southern Alluvial Plain, where dedolomitization is responsible for the observed changes in the chemical and carbon isotope composition in these waters.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences
08 Faculty of Science > Institute of Geological Sciences > Rock-Water Interaction

UniBE Contributor:

Waber, Niklaus

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

1431-2174

Publisher:

Verlag Heinz Heise

Language:

English

Submitter:

Niklaus Waber

Date Deposited:

27 Oct 2014 08:04

Last Modified:

01 Apr 2015 18:30

Publisher DOI:

10.1007/s10040-004-0425-2

Uncontrolled Keywords:

Arid regions, Groundwater flow, Groundwater recharge, Hydrochemical modeling, Stable isotopes

BORIS DOI:

10.7892/boris.59355

URI:

https://boris.unibe.ch/id/eprint/59355

Actions (login required)

Edit item Edit item
Provide Feedback