The depositional setting of the Late Quaternary sedimentary fill in southern Bannu basin, Northwest Himalayan fold and thrust belt, Pakistan

Handle URI:
http://hdl.handle.net/10754/566177
Title:
The depositional setting of the Late Quaternary sedimentary fill in southern Bannu basin, Northwest Himalayan fold and thrust belt, Pakistan
Authors:
Farid, Asam M.; Khalid, Perveiz; Jadoon, Khan; Jouini, Mohamed Soufiane
Abstract:
Geostatistical variogram and inversion techniques combined with modern visualization tools have made it possible to re-model one-dimensional electrical resistivity data into two-dimensional (2D) models of the near subsurface. The resultant models are capable of extending the original interpretation of the data to depict alluvium layers as individual lithological units within the 2D space. By tuning the variogram parameters used in this approach, it is then possible to visualize individual lithofacies and geomorphological features for these lithologic units. The study re-examines an electrical resistivity dataset collected as part of a groundwater study in an area of the Bannu basin in Pakistan. Additional lithological logs from boreholes throughout the area have been combined with the existing resistivity data for calibration. Tectonic activity during the Himalayan orogeny uplifted and generated significant faulting in the rocks resulting in the formation of a depression which subsequently has been filled with clay-silt and dirty sand facies typical of lacustrine and flood plain environments. Streams arising from adjacent mountains have reworked these facies which have been eroded and replaced by gravel-sand facies along channels. It is concluded that the sediments have been deposited as prograding fan shaped bodies, flood plain, and lacustrine deposits. Clay-silt facies mark the locations of paleo depressions or lake environments, which have changed position over time due to local tectonic activity and sedimentation. The Lakki plain alluvial system has thus formed as a result of local tectonic activity with fluvial erosion and deposition characterized by coarse sediments with high electrical resistivities near the mountain ranges and fine sediments with medium to low electrical resistivities towards the basin center. © 2014 Springer International Publishing Switzerland.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Publisher:
Springer Science + Business Media
Journal:
Environmental Monitoring and Assessment
Issue Date:
10-Jul-2014
DOI:
10.1007/s10661-014-3876-5
Type:
Article
ISSN:
01676369
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorFarid, Asam M.en
dc.contributor.authorKhalid, Perveizen
dc.contributor.authorJadoon, Khanen
dc.contributor.authorJouini, Mohamed Soufianeen
dc.date.accessioned2015-08-12T09:31:16Zen
dc.date.available2015-08-12T09:31:16Zen
dc.date.issued2014-07-10en
dc.identifier.issn01676369en
dc.identifier.doi10.1007/s10661-014-3876-5en
dc.identifier.urihttp://hdl.handle.net/10754/566177en
dc.description.abstractGeostatistical variogram and inversion techniques combined with modern visualization tools have made it possible to re-model one-dimensional electrical resistivity data into two-dimensional (2D) models of the near subsurface. The resultant models are capable of extending the original interpretation of the data to depict alluvium layers as individual lithological units within the 2D space. By tuning the variogram parameters used in this approach, it is then possible to visualize individual lithofacies and geomorphological features for these lithologic units. The study re-examines an electrical resistivity dataset collected as part of a groundwater study in an area of the Bannu basin in Pakistan. Additional lithological logs from boreholes throughout the area have been combined with the existing resistivity data for calibration. Tectonic activity during the Himalayan orogeny uplifted and generated significant faulting in the rocks resulting in the formation of a depression which subsequently has been filled with clay-silt and dirty sand facies typical of lacustrine and flood plain environments. Streams arising from adjacent mountains have reworked these facies which have been eroded and replaced by gravel-sand facies along channels. It is concluded that the sediments have been deposited as prograding fan shaped bodies, flood plain, and lacustrine deposits. Clay-silt facies mark the locations of paleo depressions or lake environments, which have changed position over time due to local tectonic activity and sedimentation. The Lakki plain alluvial system has thus formed as a result of local tectonic activity with fluvial erosion and deposition characterized by coarse sediments with high electrical resistivities near the mountain ranges and fine sediments with medium to low electrical resistivities towards the basin center. © 2014 Springer International Publishing Switzerland.en
dc.publisherSpringer Science + Business Mediaen
dc.subjectBannuen
dc.subjectFaciesen
dc.subjectGambilaen
dc.subjectPaleogeomorphologyen
dc.subjectVariogramen
dc.titleThe depositional setting of the Late Quaternary sedimentary fill in southern Bannu basin, Northwest Himalayan fold and thrust belt, Pakistanen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalEnvironmental Monitoring and Assessmenten
dc.contributor.institutionInstitute of Geology, University of Punjab, P.O. Box 54590, Lahore, Pakistanen
dc.contributor.institutionDepartment of Petroleum Geosciences, The Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emiratesen
dc.contributor.institutionDepartment of Mathematics, The Petroleum Institute, P.O. Box 2533, Abu Dhabi, United Arab Emiratesen
kaust.authorJadoon, Khanen
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