Stratigraphy of the Kohat Quadrangle, Pakistan

Meissner, Charles R.; Master, J.M.; Rashid, Mohammad A.; Hussain, Muzaffar

doi:10.3133/pp716d

Cited by 56 publications

(46 citation statements)

References 3 publications

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“…It is present as isolated limestone slumped blocks in the Johan area ( Figure A1) at about the same stratigraphic level as in Mach. Also, it is observed in the Waziristan area (northeast of Mir Ali on the road to Thal; Figures A3 and A4) at the base of a thin variegated shale and sandstone sequence where it is mapped as Paleocene Patala Formation by Meissner et al [102,103]. The regional presence of a weathered unconformity between lower Eocene rocks and underlying Paleocene or Cretaceous rocks along the axial belt represents another strong piece of evidence that collision tectonics had begun in this region by upper Paleocene time.…”

Section: Central Region Of Study Areamentioning

confidence: 93%

Lower Paleogene Tectonostratigraphy of Balochistan: Evidence for Time-Transgressive Late Paleocene-Early Eocene Uplift

Khan

Clyde

2013

Geosciences

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Analysis of lithofacies, paleoflow directions, and sandstone petrography of upper Paleocene-lower Eocene paralic and continental sediments exposed along the transpressional suture zone of the western margin of the Indian plate indicate that the process of deformation and uplift of the carbonate shelf in this area had started by late Paleocene time. This tectonic uplift and deformation is documented by: (1) an overall shallowing upward synorogenic sequence of sediments, (2) proximal conglomerate facies (consisting of lower Paleocene and Mesozoic clasts) dominating in the western part of the study area and distal facies of sandstone and shale dominating in the eastern part of the study area, (3) the existence of an unconformity of late Paleocene-early Eocene age in the Quetta and Kalat regions, (4) paleocurrent directions in deltaic and fluvial deposits indicating southeastward flowing sediment dispersal paths during late Paleocene-early Eocene time, which is opposite to that found in the late Cretaceous, suggesting a reversal in the depositional slope of the Cretaceous shelf, and (5) petrographic study of sandstones indicating a collision suture/fold thrust belt provenance. This episode of uplift and deformation could be the result of India-Arabian transpression with associated ophiolite obduction or, more likely, to represent the local response to initial India-Asia contact. The unroofing pattern and uplift geometry of the western Indian shelf suggests that this tectonism first started in the southern part of the study area (Kalat-Khuzdar area) during the late Paleocene-early Eocene and proceeded northward in a time-transgressive fashion

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Section: Central Region Of Study Areamentioning

confidence: 93%

Lower Paleogene Tectonostratigraphy of Balochistan: Evidence for Time-Transgressive Late Paleocene-Early Eocene Uplift

Khan

Clyde

2013

Geosciences

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“…This resulted in the development of thrust faults and other geological changes along the northern margin of the Indo-Pakistan Plate (Calkins et al, 1975;Gee, 1989;Hemphill and Kidwai, 1973;Hussain et al, 1989;Pogue et al, 1992;Pinvik and Sercombe, 1993;Meissner et al, 1974). The major thrust faults from north to south are the main mantle thrust (MMT), the Khairabad-Panjal Thrust (KPT), the main boundary thrust (MBT) and the Salt Range Thrust (SRT) (Fig.…”

Section: General Geologymentioning

confidence: 95%

Manganese and ferromanganese ores from different tectonic settings in the NW Himalayas, Pakistan

Shah

Moon

2007

Journal of Asian Earth Sciences

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“…The Kohat Plateau is bordered by the Main Boundary Thrust (MBT) in the north, Surghar Range Thrust/Salt Range Thrust in the south, Kalabagh Fault (and Indus River) in the east and Kurram Fault in the west [20,21]. The first detailed geological map of the Kohat Plateau was published by the United States Geological Survey [22]. District Karak is located in the southern part of the Kohat plateau and has been administratively divided into three tehsils, namely, (a) Tehsil Banda Daud Shah (b) Tehsil Karak and (c) Tehsil Takhat -e-Nasrati.…”

Section: Location and Extent Of The Study Areamentioning

confidence: 99%

Radon concentration in drinking water sources of the region adjacent to a tectonically active Karak Thrust, southern Kohat Plateau, Khyber Pakhtunkhwa, Pakistan

Khattak

Khan

Shah

et al. 2014

J Radioanal Nucl Chem

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A total of 84 drinking water samples from tube wells, natural springs, hand pumps and open wells in the region adjacent to a tectonically active Karak Thrust, Pakistan, were analyzed for radon content determination. These samples have a mean, maximum and minimum radon values of 9.4 ± 0.4, 25.1 ± 0.9, and 1.1 ± 0.2 Bq l -1 , respectively. This study indicates that 24 % of samples from tube wells, 44 % from springs, and 50 % from hand pumps have radon levels in excess of the EPA recommended maximum contaminant level of 11.1 Bq l -1 . The mean annual effective doses of all the samples are lower than the reference level of 0.1 mSv a -1 . Drinking water from majority of the sources within the region is generally safe as far as radon related health hazards are concerned with exception of few isolated cases.

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Stratigraphy of the Kohat Quadrangle, Pakistan

Cited by 56 publications

References 3 publications

Lower Paleogene Tectonostratigraphy of Balochistan: Evidence for Time-Transgressive Late Paleocene-Early Eocene Uplift

Lower Paleogene Tectonostratigraphy of Balochistan: Evidence for Time-Transgressive Late Paleocene-Early Eocene Uplift

Manganese and ferromanganese ores from different tectonic settings in the NW Himalayas, Pakistan

Radon concentration in drinking water sources of the region adjacent to a tectonically active Karak Thrust, southern Kohat Plateau, Khyber Pakhtunkhwa, Pakistan

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