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- W2000820257 abstract "Research Article| December 01, 2006 Planktonic foraminifera at the Paleocene/Eocene boundary in the Jaisalmer Basin, Rajasthan, India Prabha Kalia; Prabha Kalia Department of Geology, University of Delhi, Delhi, 110007, India email: prabha_kalia@yahoo.co.uk, rokosuno@yahoo.com Search for other works by this author on: GSW Google Scholar Rokosuno Kintso Rokosuno Kintso Department of Geology, University of Delhi, Delhi, 110007, India email: prabha_kalia@yahoo.co.uk, rokosuno@yahoo.com Search for other works by this author on: GSW Google Scholar Author and Article Information Prabha Kalia Department of Geology, University of Delhi, Delhi, 110007, India email: prabha_kalia@yahoo.co.uk, rokosuno@yahoo.com Rokosuno Kintso Department of Geology, University of Delhi, Delhi, 110007, India email: prabha_kalia@yahoo.co.uk, rokosuno@yahoo.com Publisher: Micropaleontology Press Received: 24 Aug 2006 Accepted: 23 Jan 2007 First Online: 06 Mar 2017 Online ISSN: 0026-2803 Print ISSN: 1937-2795 © 2006 The Micropaleontology Project, Inc. Micropaleontology (2006) 52 (6): 521–536. https://doi.org/10.2113/gsmicropal.52.6.521 Article history Received: 24 Aug 2006 Accepted: 23 Jan 2007 First Online: 06 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Prabha Kalia, Rokosuno Kintso; Planktonic foraminifera at the Paleocene/Eocene boundary in the Jaisalmer Basin, Rajasthan, India. Micropaleontology 2006;; 52 (6): 521–536. doi: https://doi.org/10.2113/gsmicropal.52.6.521 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 SocietyMicropaleontology Search Advanced Search Abstract The Paleogene neritic sedimentary succession in Jaisalmer Basin is correlated with the stratigraphic record in the Indus basin, Pakistan. In a number of exploratory oil wells drilled westward (basinward) in Jaisalmer the shelf stratigraphic record is more complete than in outcropping sections to the east. In the Tanot-1 well (Oil India Limited) Paleocene sandstone, marl, clay, glauconitic limestone and shale unconformably overlie upper Cretaceous strata. Zone P4 is recognized in about 36m of arenaceous and calcareous clays and marl, which transgresses the lithostratigraphic boundary between the Ranikot Formation and the succeeding Laki Formation. Planktonic foraminifers in Zone P4 and lower Zone P5 are found only in the −80 ASTM fraction of the residue. Rich planktonic foraminiferal assemblages are found in the maroon coloured shale, clay, limestone and marl beds 42m above the base of Zone P5 and this level is characterized by the common occurrence of Morozovella rajasthanensis n. sp., Globanomalina luxorensis morphotypes with their typical slightly asymmetric aperture along with Acarinina africana, A. sibaiyaensis and Morozovella allisonensis morphotypes. Morozovellids with weak ornamentation and slightly biconvex axially compressed tests are also present at this level that is marked by the abundance of acarininids. This biotic evidence of the presence of planktonic foraminiferal taxa typically related to the global Paleocene/Eocene boundary warming event (PETM) is recorded about 39m above the base of Zone P5, which is 102m thick in the Tanot-1 well. The presence of Subzone P5b is indicated by the occurrence of excursion-taxa namely Acarinina sibaiyaensis, A. africana and Morozovella allisonensis. In the inner-middle shelf M. rajasthanensis n. sp., a morphological variant of M. acuta with larger number of chambers in the last whorl, weak muricocarina and umbilical-shoulder ornamentation commonly present above the barren clay beds (1005m) appeared during the PETM and characterizes the Subzone P5b (Berggren and Ouda 2003). The Paleocene-Eocene planktonic foraminiferal biostratigraphy as proposed by Berggren and Ouda, (2003) is applicable to the Indus Basin. You do not have access to this content, please speak to your institutional administrator if you feel you should have access." @default.
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- W2000820257 title "Planktonic foraminifera at the Paleocene/Eocene boundary in the Jaisalmer Basin, Rajasthan, India" @default.
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