Groundwater dynamics in fossil fractured carbonate aquifers in Eastern Arabian Peninsula: A preliminary investigation

Abotalib Z. Abotalib, Essam Heggy, Giovanni Scabbia, Annamaria Mazzoni

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Eastern Arabian Peninsula represents the main natural groundwater discharge area of the Arabian platform fossil aquifer system. In such settings, connections between aquifers could strongly affect the flow dynamics, water quality and availability as well as karst formation and landscape evolution. Geological structures such as folds and faults are central to aquifer connectivity, yet their role on groundwater flow is poorly understood. Herein, we perform mapping of exposed and buried structural features in the Qatar Peninsula using Landsat, Sentinel-2 and ALOS-PalSAR scenes, correlated with field, GPR and isotopic data to assess their role in aquifer connections and groundwater dynamics. Our results suggest that ENE-WSW oriented fold-related faults act as vertical conduits along which artesian upward leakages from the deep Aruma aquifer take place into the shallower main aquifer unit (i.e. Umm er Radhuma and Rus) in southern Qatar Peninsula. On the other hand, downward leakage from the freshwater lens in the Dammam aquifer take place in northern Qatar Peninsula. The deep, brackish, and gaseous-rich waters ascending along faults in south Qatar Peninsula, in addition to degrading the water quality in the main aquifer unit, enhance dissolution of carbonates and evaporites leading to strong karstification that produces abundant collapse features. Our findings suggest that structure controls can add significant complexity to recharge mechanisms and groundwater dynamics in fossil aquifers. Future large-scale radar subsurface mapping will be essential to resolve the variability of the water heads in such areas and its correlation to structural discontinuities.

Original languageEnglish
Pages (from-to)460-470
Number of pages11
JournalJournal of Hydrology
Volume571
DOIs
Publication statusPublished - 1 Apr 2019

Fingerprint

aquifer
fossil
carbonate
groundwater
leakage
fold
water quality
ALOS
karstification
landscape evolution
ground penetrating radar
geological structure
evaporite
water availability
Landsat
groundwater flow
karst
connectivity
recharge
discontinuity

Keywords

  • Arid environments
  • Eastern Arabian Peninsula
  • Fractured carbonate aquifer
  • Geological structures
  • Groundwater mounding

ASJC Scopus subject areas

  • Water Science and Technology

Cite this

Groundwater dynamics in fossil fractured carbonate aquifers in Eastern Arabian Peninsula : A preliminary investigation. / Abotalib, Abotalib Z.; Heggy, Essam; Scabbia, Giovanni; Mazzoni, Annamaria.

In: Journal of Hydrology, Vol. 571, 01.04.2019, p. 460-470.

Research output: Contribution to journalArticle

@article{eaed7782347a414bb3b78c392ead3654,
title = "Groundwater dynamics in fossil fractured carbonate aquifers in Eastern Arabian Peninsula: A preliminary investigation",
abstract = "Eastern Arabian Peninsula represents the main natural groundwater discharge area of the Arabian platform fossil aquifer system. In such settings, connections between aquifers could strongly affect the flow dynamics, water quality and availability as well as karst formation and landscape evolution. Geological structures such as folds and faults are central to aquifer connectivity, yet their role on groundwater flow is poorly understood. Herein, we perform mapping of exposed and buried structural features in the Qatar Peninsula using Landsat, Sentinel-2 and ALOS-PalSAR scenes, correlated with field, GPR and isotopic data to assess their role in aquifer connections and groundwater dynamics. Our results suggest that ENE-WSW oriented fold-related faults act as vertical conduits along which artesian upward leakages from the deep Aruma aquifer take place into the shallower main aquifer unit (i.e. Umm er Radhuma and Rus) in southern Qatar Peninsula. On the other hand, downward leakage from the freshwater lens in the Dammam aquifer take place in northern Qatar Peninsula. The deep, brackish, and gaseous-rich waters ascending along faults in south Qatar Peninsula, in addition to degrading the water quality in the main aquifer unit, enhance dissolution of carbonates and evaporites leading to strong karstification that produces abundant collapse features. Our findings suggest that structure controls can add significant complexity to recharge mechanisms and groundwater dynamics in fossil aquifers. Future large-scale radar subsurface mapping will be essential to resolve the variability of the water heads in such areas and its correlation to structural discontinuities.",
keywords = "Arid environments, Eastern Arabian Peninsula, Fractured carbonate aquifer, Geological structures, Groundwater mounding",
author = "Abotalib, {Abotalib Z.} and Essam Heggy and Giovanni Scabbia and Annamaria Mazzoni",
year = "2019",
month = "4",
day = "1",
doi = "10.1016/j.jhydrol.2019.02.013",
language = "English",
volume = "571",
pages = "460--470",
journal = "Journal of Hydrology",
issn = "0022-1694",
publisher = "Elsevier",

}

TY - JOUR

T1 - Groundwater dynamics in fossil fractured carbonate aquifers in Eastern Arabian Peninsula

T2 - A preliminary investigation

AU - Abotalib, Abotalib Z.

AU - Heggy, Essam

AU - Scabbia, Giovanni

AU - Mazzoni, Annamaria

PY - 2019/4/1

Y1 - 2019/4/1

N2 - Eastern Arabian Peninsula represents the main natural groundwater discharge area of the Arabian platform fossil aquifer system. In such settings, connections between aquifers could strongly affect the flow dynamics, water quality and availability as well as karst formation and landscape evolution. Geological structures such as folds and faults are central to aquifer connectivity, yet their role on groundwater flow is poorly understood. Herein, we perform mapping of exposed and buried structural features in the Qatar Peninsula using Landsat, Sentinel-2 and ALOS-PalSAR scenes, correlated with field, GPR and isotopic data to assess their role in aquifer connections and groundwater dynamics. Our results suggest that ENE-WSW oriented fold-related faults act as vertical conduits along which artesian upward leakages from the deep Aruma aquifer take place into the shallower main aquifer unit (i.e. Umm er Radhuma and Rus) in southern Qatar Peninsula. On the other hand, downward leakage from the freshwater lens in the Dammam aquifer take place in northern Qatar Peninsula. The deep, brackish, and gaseous-rich waters ascending along faults in south Qatar Peninsula, in addition to degrading the water quality in the main aquifer unit, enhance dissolution of carbonates and evaporites leading to strong karstification that produces abundant collapse features. Our findings suggest that structure controls can add significant complexity to recharge mechanisms and groundwater dynamics in fossil aquifers. Future large-scale radar subsurface mapping will be essential to resolve the variability of the water heads in such areas and its correlation to structural discontinuities.

AB - Eastern Arabian Peninsula represents the main natural groundwater discharge area of the Arabian platform fossil aquifer system. In such settings, connections between aquifers could strongly affect the flow dynamics, water quality and availability as well as karst formation and landscape evolution. Geological structures such as folds and faults are central to aquifer connectivity, yet their role on groundwater flow is poorly understood. Herein, we perform mapping of exposed and buried structural features in the Qatar Peninsula using Landsat, Sentinel-2 and ALOS-PalSAR scenes, correlated with field, GPR and isotopic data to assess their role in aquifer connections and groundwater dynamics. Our results suggest that ENE-WSW oriented fold-related faults act as vertical conduits along which artesian upward leakages from the deep Aruma aquifer take place into the shallower main aquifer unit (i.e. Umm er Radhuma and Rus) in southern Qatar Peninsula. On the other hand, downward leakage from the freshwater lens in the Dammam aquifer take place in northern Qatar Peninsula. The deep, brackish, and gaseous-rich waters ascending along faults in south Qatar Peninsula, in addition to degrading the water quality in the main aquifer unit, enhance dissolution of carbonates and evaporites leading to strong karstification that produces abundant collapse features. Our findings suggest that structure controls can add significant complexity to recharge mechanisms and groundwater dynamics in fossil aquifers. Future large-scale radar subsurface mapping will be essential to resolve the variability of the water heads in such areas and its correlation to structural discontinuities.

KW - Arid environments

KW - Eastern Arabian Peninsula

KW - Fractured carbonate aquifer

KW - Geological structures

KW - Groundwater mounding

UR - http://www.scopus.com/inward/record.url?scp=85061727159&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85061727159&partnerID=8YFLogxK

U2 - 10.1016/j.jhydrol.2019.02.013

DO - 10.1016/j.jhydrol.2019.02.013

M3 - Article

AN - SCOPUS:85061727159

VL - 571

SP - 460

EP - 470

JO - Journal of Hydrology

JF - Journal of Hydrology

SN - 0022-1694

ER -