Structural Architecturing of the Western Khisor Range, North of Saiyiduwali: Implications for Hydrocarbon Prospects, KPK, Pakistan
Western Khisor Range segment of the Trans-Indus ranges is a south-vergent, east-west trending foldthrust belt that protrudes southward into Himalayan foreland deep. The frontal flanks of range are characterized by east-west trending parallel to enechelon, plunging local anticlines and synclines st...
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| Format: | Article |
| Language: | English |
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Society of Economic Geologists and Mineral Technologists
2015-12-01
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| Series: | International Journal of Economic and Environment Geology |
| Subjects: | |
| Online Access: | http://www.econ-environ-geol.org/pdf/jun2015/04.pdf |
| _version_ | 1819044785930895360 |
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| author | Iftikhar Alam M. Waseem Khan |
| author_facet | Iftikhar Alam M. Waseem Khan |
| author_sort | Iftikhar Alam |
| collection | DOAJ |
| description | Western Khisor Range segment of the Trans-Indus ranges is a south-vergent, east-west trending foldthrust
belt that protrudes southward into Himalayan foreland deep. The frontal flanks of range are characterized
by east-west trending parallel to enechelon, plunging local anticlines and synclines structures. General structural
style of folds was observed asymmetric to overturn and dominantly south vergent. The frontal outskirts of the
study area is demarcated by a youngest partly emergent thrust fault named as Khisor Thrust. Outcrops projection
to subsurface of the structural features suggests a thin-skinned tectonic mechanism for growth of the western
Khisor Range where gliding surface for the frontal thrust sheet being located within the Cambrian rocks of
Jhelum Group at a maximum depth of 4km. The structural evolution of the western Khisor Range is generally
ascribed to southward directed thrust transferral system along the basal décollement being observed at base of
the Cambrian Khewra Sandstone. Along this detachment horizon the Khewra Sandstone emplaced over the
Recent alluvium and boulder bed deposits. The Khisor Thrust fault bulldozed the fore limb of the Saiyiduwali
Anticline and demarcates the north-western proximity of the Punjab Foredeep. The Khisor Thrust sheet is
predominantly comprised of the shallow marine rocks of Paleozoic to Mesozoic, laterally extended along the
range. The stratigraphic framework of the western Khisor Range is considerably related and correlative to the
eastern Trans-Indus and Salt ranges. Cambrian strata of the western Khisor Range comprise of Jhelum Group
where its apex is underlain by the Permian Nilawahan and Zaluch groups rocks, consists of the Sardhai and
Amb formations. The Sardhai Formation was observed 50m thick and consists of dark gray to blackish gray and
black carbonaceous shale while the lower constituents of the Amb Formation contains dark gray carbonaceous
and calcareous shale up to 30m thick, which is favorable setting for hydrocarbon potential of the area. Blending
of structural style and stratigraphic framework of the western Khisor Range urges that the south-western
foredeep in proximity of Saiyiduwali is significantly associated for the hydrocarbon research, as thick
carbonaceous lithofacies of both formations are viable potential source rocks. |
| first_indexed | 2024-12-21T10:18:12Z |
| format | Article |
| id | doaj.art-735d0d0f777d459b82eb07cf75f45cbb |
| institution | Directory Open Access Journal |
| issn | 2223-957X 2223-957X |
| language | English |
| last_indexed | 2024-12-21T10:18:12Z |
| publishDate | 2015-12-01 |
| publisher | Society of Economic Geologists and Mineral Technologists |
| record_format | Article |
| series | International Journal of Economic and Environment Geology |
| spelling | doaj.art-735d0d0f777d459b82eb07cf75f45cbb2022-12-21T19:07:32ZengSociety of Economic Geologists and Mineral TechnologistsInternational Journal of Economic and Environment Geology2223-957X2223-957X2015-12-01622735Structural Architecturing of the Western Khisor Range, North of Saiyiduwali: Implications for Hydrocarbon Prospects, KPK, PakistanIftikhar Alam0M. Waseem Khan1Atomic Energy Minerals Centre, Lahore, Pakistan Atomic Energy Minerals Centre, Lahore, Pakistan Western Khisor Range segment of the Trans-Indus ranges is a south-vergent, east-west trending foldthrust belt that protrudes southward into Himalayan foreland deep. The frontal flanks of range are characterized by east-west trending parallel to enechelon, plunging local anticlines and synclines structures. General structural style of folds was observed asymmetric to overturn and dominantly south vergent. The frontal outskirts of the study area is demarcated by a youngest partly emergent thrust fault named as Khisor Thrust. Outcrops projection to subsurface of the structural features suggests a thin-skinned tectonic mechanism for growth of the western Khisor Range where gliding surface for the frontal thrust sheet being located within the Cambrian rocks of Jhelum Group at a maximum depth of 4km. The structural evolution of the western Khisor Range is generally ascribed to southward directed thrust transferral system along the basal décollement being observed at base of the Cambrian Khewra Sandstone. Along this detachment horizon the Khewra Sandstone emplaced over the Recent alluvium and boulder bed deposits. The Khisor Thrust fault bulldozed the fore limb of the Saiyiduwali Anticline and demarcates the north-western proximity of the Punjab Foredeep. The Khisor Thrust sheet is predominantly comprised of the shallow marine rocks of Paleozoic to Mesozoic, laterally extended along the range. The stratigraphic framework of the western Khisor Range is considerably related and correlative to the eastern Trans-Indus and Salt ranges. Cambrian strata of the western Khisor Range comprise of Jhelum Group where its apex is underlain by the Permian Nilawahan and Zaluch groups rocks, consists of the Sardhai and Amb formations. The Sardhai Formation was observed 50m thick and consists of dark gray to blackish gray and black carbonaceous shale while the lower constituents of the Amb Formation contains dark gray carbonaceous and calcareous shale up to 30m thick, which is favorable setting for hydrocarbon potential of the area. Blending of structural style and stratigraphic framework of the western Khisor Range urges that the south-western foredeep in proximity of Saiyiduwali is significantly associated for the hydrocarbon research, as thick carbonaceous lithofacies of both formations are viable potential source rocks.http://www.econ-environ-geol.org/pdf/jun2015/04.pdfDécollementKhisor thrustthin-skinned tectonicshydrocarbon potential. |
| spellingShingle | Iftikhar Alam M. Waseem Khan Structural Architecturing of the Western Khisor Range, North of Saiyiduwali: Implications for Hydrocarbon Prospects, KPK, Pakistan International Journal of Economic and Environment Geology Décollement Khisor thrust thin-skinned tectonics hydrocarbon potential. |
| title | Structural Architecturing of the Western Khisor Range, North of Saiyiduwali: Implications for Hydrocarbon Prospects, KPK, Pakistan |
| title_full | Structural Architecturing of the Western Khisor Range, North of Saiyiduwali: Implications for Hydrocarbon Prospects, KPK, Pakistan |
| title_fullStr | Structural Architecturing of the Western Khisor Range, North of Saiyiduwali: Implications for Hydrocarbon Prospects, KPK, Pakistan |
| title_full_unstemmed | Structural Architecturing of the Western Khisor Range, North of Saiyiduwali: Implications for Hydrocarbon Prospects, KPK, Pakistan |
| title_short | Structural Architecturing of the Western Khisor Range, North of Saiyiduwali: Implications for Hydrocarbon Prospects, KPK, Pakistan |
| title_sort | structural architecturing of the western khisor range north of saiyiduwali implications for hydrocarbon prospects kpk pakistan |
| topic | Décollement Khisor thrust thin-skinned tectonics hydrocarbon potential. |
| url | http://www.econ-environ-geol.org/pdf/jun2015/04.pdf |
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