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Depositional and Bio-Sequence Stratigraphic Framework of Late Cretaceous Kawagarh Formation,Kala-Chitta Range,Pakistan:Equivalent of Gurpi Formation(Iran)

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Journal of Earth Science 2024年第2期35卷 332-348页

作者： Muhammad Awais Bilal Wadood Muhammad Ishaq Muhammad Bilal zeeshan zafar Nasar Khan Aminullah Khan Department of Geology University of SwabiAnbar-SwabiKhyber PakhtunkhwaSwabi23561Pakistan Department of Earth Environmental and Resources SciencesUniversity of Naples FedericoⅡNaples80126Italy State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an710069China National Centre of Excellence in Geology University of PeshawarPeshawarKhyber Pakhtunkhwa25130Pakistan Department of Geological Engineering School of Earth Sciences and EngineeringXi’an Shiyou UniversityXi’an610500China Department of Petroleum Geology and Engineering School of Earth ResourcesChina University of GeosciencesWuhan430074China Department of Geology University of MalakandDir Lower18800ChakdaraPakistan Department of Earth and Environmental Sciences KU LeuvenLeuven3001Belgium

The present study is focused on evaluation of deep marine pelagic sediments of Late Cretaceous Kawagarh Formation of Kala-Chitta Range in the context of microfacies analysis,paleoenvironmental interpretation,planktonic foraminiferal biostratigraphy,sequence stratigraphy and diversification of species.A total of thirty three rock samples were collected from the measured *** microfacies are interpreted,namely planktonic foraminifera wackestone,planktonic foraminifera mudstone and sandy mudstone indicating low energy depositional environment i.e.,outer *** biostratigraphic studies show plentiful planktonic foraminifera species of Globotruncana,Heterohelix and ***,no association of benthic or siliceous organisms was *** the basis of available species assemblage,a single local planktonic foraminifera biozone i.e.,Globotruncana-Heterohelix-Globotruncanita Assemblage Biozone is *** biozone information is combined with published literature and Lower Santonian to Middle Maastrichtian age has been assigned to the Kawagarh *** trend of species occurrences evinces that species number decreases over time with pulsated rise in the Kawagarh *** Kawagarh Formation carbonates show an overall Transgressive Systems Tract(TST).The Kawagarh Formation of Pakistan evinces analogous characteristics to that of the Late Cretaceous Gurpi Formation of Iran based on the geologic age,outcrop lithology,microfacies,planktonic foraminiferal assemblages,depositional setting and sequence stratigraphy.

关键词： depositional fabric biostratigraphy sequence stratigraphy Late Cretaceous Kawagarh Formation Pakistan Gurpi Formation Iran

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Determination of the heavy metal content of Entoban herbal medicinal product

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Journal of Chinese Pharmaceutical Sciences 2015年第11期24卷 764-769页

作者： Sadia Shakeel zeeshan Ahmed Sheikh Khan Usmanghani Nadeem Khalid zafar Ali Somia Gul Safila Naveed Faculty of Pharmacy Dow University of Health Sciences Herbion Pakistan (Pvt.) Ltd. Faculty of Pharmacy Jinnah University for Women Karachi.

The levels of As, Cd, Pb and Hg were investigated in the medicinal herbal syrup Entoban, which is widely used in the management of non-specific diarrhea and acute intestinal infections of various etiologies. The ingredients in Entoban syrup include 6 potent herbal drugs: Aegle marmelose, Berberis aristata, Butea frondosa, Holarrhena antidysenterica, Myrtus communis, and Quercus infectoria. Entoban medicinal plant syrup was analyzed for As, Cd, Pb and Hg by flame atomic absorption spectroscopy(FAAS). Contents of heavy metals in the examined samples were in the range: As(0.074–10.0 ppm); Cd(0.020–0.3 ppm); Pb(0.00–10.0 ppm) and Hg(0.00–1.0 ppm). Results were compared with permissible limit acceptability intake(AHPA). According to determined amounts of heavy metals, the investigated Entoban syrup samples were validated and considered safe for human consumption.

关键词： Heavy metals, Flame atomic absorption spectroscopy, Medicinal plants, Entoban syrup

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