Large-scale sediment underplating in the Makran accretionary prism, southwest Pakistan

Abstract

Research Article| July 01, 1985 Large-scale sediment underplating in the Makran accretionary prism, southwest Pakistan J. P. Platt; J. P. Platt 1Department of Earth Sciences, Oxford University, Parks Road, Oxford OX1 3PR, England Search for other works by this author on: GSW Google Scholar J. K. Leggett; J. K. Leggett 2Department of Geology, Imperial College of Science and Technology, Prince Consort Road, London SW7, England Search for other works by this author on: GSW Google Scholar J. Young; J. Young 2Department of Geology, Imperial College of Science and Technology, Prince Consort Road, London SW7, England Search for other works by this author on: GSW Google Scholar H. Raza; H. Raza 3Hydrocarbon Development Institute of Pakistan, 1 School Road, Shalimar 6/1, Islamabad, Pakistan Search for other works by this author on: GSW Google Scholar S. Alam S. Alam 3Hydrocarbon Development Institute of Pakistan, 1 School Road, Shalimar 6/1, Islamabad, Pakistan Search for other works by this author on: GSW Google Scholar Geology (1985) 13 (7): 507–511. https://doi.org/10.1130/0091-7613(1985)13<507:LSUITM>2.0.CO;2 Article history first online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation J. P. Platt, J. K. Leggett, J. Young, H. Raza, S. Alam; Large-scale sediment underplating in the Makran accretionary prism, southwest Pakistan. Geology 1985;; 13 (7): 507–511. doi: https://doi.org/10.1130/0091-7613(1985)13<507:LSUITM>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Field relations in the emergent part of the Makran accretionary prism show that a mid-Miocene to early Pliocene slope and shelf sedimentary sequence was deposited directly on abyssal-plain turbidites without any detectable stratigraphic or structural discordance. Sedimentological evidence for rapid shoaling, however, indicates that the underlying sediment column was tectonically thickened by a factor of between two and three during this period. This can be explained by large-scale underthrusting and underplating of sediment—a mode of accretion that is also favored by mass-balance considerations. The visible deformation in the coastal Makran occurred when the region was 70–100 km north of the contemporary prism front. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.