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Document Type |
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Article In Journal |
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Document Title |
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Hydrogeological and hydrochemical indicators to govern the validity of the faults and the quality of groundwater in Wadi Fatimah Basin, the western part of Saudi Arabia مؤشرات هيدروجيولوجية وهيدروكيميائية لتحكم الصدوع على سريان ونوعية المياه الجوفية بحوض وادي فاطمة، الجزء الغربي من المملكة العربية السعودية |
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Subject |
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Hydrogeological and hydrochemical indicators to govern the validity of the faults and the quality of groundwater in Wadi Fatimah Basin, the western part of Saudi Arabia |
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Document Language |
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English |
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Abstract |
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The measurements of the water table and total depths of the drilled wells and the might be attributed to faults that occur in these regions. It is believed
that these faults might have played an important role in developing semiisolated
groundwater basins due to their influence on free groundwater
flow to these isolated basins, that contain highly saline water. In Al Sail
Al Kabir region, it was observed that a dike extending east-west, which
is probably a trace of the extension of Wadi Al Yamaniyyah fault,
divided the area into two main parts; the southern and northern. In the
southern part, the groundwater salinity is low, and the EC measurements
ranged from 866 to 1689 μS/cm, whereas, in the northern part the
groundwater salinity varied between 3420 and 5020 μS/cm. The
presence of this dike may constitute a groundwater barrier that impeded
the groundwater general flow from the south to the north direction. This
may modify the groundwater path way toward the west to Wadi Al
Yamaniyyah. On the other hand, in Al Jumum-Bahrah region, the EC
measurements show that the groundwater salinity varies between 5400
and 24900 μS/cm, and the highly mineralized water zone exists
between Hadda and Bahrah. The well records, as well as the geophysical
survey carried out in this area indicate, that the presence of highly
mineralized groundwater zone might be attributed to the effect of the
extension of the Shumaysi fault that runs northwesterly. This fault might
have elevated the aquifer bedrock to a shallower level in this area,
which in turn blocked the groundwater flow throughout the main
channel of the wadi basin, and probably was modified towards Wadi
Shumaysi . The landsat image indicates another fault located in the
vicinity of the outlet of the Fatimah basin, and runs in a north-east
direction. It might have uplifted the bedrock as well. The effects of these
two buried faults had probably formed a semi-isolated basin that contains
highly saline groundwater. |
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ISSN |
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1012-8832 |
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Journal Name |
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Earth Sciences Journal |
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Volume |
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17 |
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Issue Number |
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1 |
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Publishing Year |
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1426 AH
2006 AD |
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Article Type |
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Article |
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Added Date |
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Monday, February 21, 2011 |
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Researchers
| محمود سعيد اليماني | Alyamani, Mahmoud Said | Researcher | Doctorate | |
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