The Paleocene Hangu formation : a key to unlocking the mysteries of Paleo-Tethys tectonism

dc.contributor.authorBilal, Ahmer
dc.contributor.authorYang, Renchao
dc.contributor.authorLenhardt, Nils
dc.contributor.authorHan, Zuozhen
dc.contributor.authorLuan, Xiwu
dc.date.accessioned2023-11-02T11:50:10Z
dc.date.issued2023-11
dc.descriptionDATA AVAILABILITY : Data will be made available on request.en_US
dc.description.abstractThe sedimentary rocks of the Paleocene Hangu Formation in the Yadgaar Section of the Upper Indus Basin in northern Pakistan, have been the subject of an integrated field, petrographical, and sedimentological investigation. The goals of this study are to improve our understanding of the sedimentary environment, facies shifts, and the impact of tectonism on the genesis of the investigated sedimentary facies. A better understanding of the intricate relationships between the aforementioned factors will clarify whether the regional tectonic drive has partial control over or complete command of the sedimentation processes. The results of this study shows that the Hangu Formation consists of four facies: bauxite, sandstone, coal, and limestone. The bauxite deposits formed in a karst environment with severe chemical weathering in a humid to extremely humid climatic setting. Thin coal laminae indicate a peatland environment that formed within a humid tropical climate. Sub-arkose, arenite, and arkose sandstone facies mark deltaic (sub-humid), coastal–near shore (humid to hot-humid), and high-energy fluvial (arid to semi-arid) sedimentary environments, respectively. Finally, the occurrence of marly limestone points towards deposition on a shallow marine carbonate platform within a coastal-brackish environment. The facies shift of the sediments provides evidence for a gradual transition from continental to marine conditions within the study area, together with episodic transgressive and regressive cycles as well as changing climatic and geomorphological conditions. In consequence, all these changes are controlled and shaped by the effects of Paleo-Tethys tectonism during the Indo-Eurasian intra-oceanic subduction. This advancement through the current work helps in understanding tectonic-sedimentary mechanics, i.e., how regional tectono-sedimentological processes influence the formation of sedimentary sequences.en_US
dc.description.departmentGeologyen_US
dc.description.embargo2024-09-22
dc.description.librarianhj2023en_US
dc.description.sponsorshipThe China-ASEAN Maritime Cooperation Fund Project and the National Natural Science Foundation of China.en_US
dc.description.urihttps://www.elsevier.com/locate/marpetgeoen_US
dc.identifier.citationBilal, A., Yang, R., Lenhardt, N., Han, Z. et al. 2023, 'The Paleocene Hangu formation : a key to unlocking the mysteries of Paleo-Tethys tectonism', Marine and Petroleum Geology, vol. 157, art. 106508, pp. 1-23, doi : 10.1016/j.marpetgeo.2023.106508.en_US
dc.identifier.issn0264-8172 (print)
dc.identifier.issn1873-4073 (online)
dc.identifier.other10.1016/j.marpetgeo.2023.106508
dc.identifier.urihttp://hdl.handle.net/2263/93155
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rights© 2023 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Marine and Petroleum Geology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Marine and Petroleum Geology, vol. 157, art. 106508, pp. 1-23, 2023, doi : 10.1016/j.marpetgeo.2023.106508.en_US
dc.subjectSedimentary environmenten_US
dc.subjectSedimentologyen_US
dc.subjectRegional tectonismen_US
dc.subjectHangu formationen_US
dc.subjectLithofaciesen_US
dc.subjectFacies shiften_US
dc.titleThe Paleocene Hangu formation : a key to unlocking the mysteries of Paleo-Tethys tectonismen_US
dc.typePostprint Articleen_US

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