Temporal constraints on the Paleoproterozoic Lomagundi-Jatuli carbon isotopic event

Abstract

Research Article| July 01, 2007 Temporal constraints on the Paleoproterozoic Lomagundi-Jatuli carbon isotopic event Victor A. Melezhik; Victor A. Melezhik 1Geological Survey of Norway, Leiv Eirikssons vei 39, N-4791 Trondheim, Norway Search for other works by this author on: GSW Google Scholar Hannu Huhma; Hannu Huhma 2Geological Survey of Finland, FIN-02150 Espoo, Finland Search for other works by this author on: GSW Google Scholar Daniel J. Condon; Daniel J. Condon 3Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA Search for other works by this author on: GSW Google Scholar Anthony E. Fallick; Anthony E. Fallick 4Scottish Universities Environmental Research Centre, East Kilbride, Glasgow G75 0QF, Scotland Search for other works by this author on: GSW Google Scholar Martin J. Whitehouse Martin J. Whitehouse 5Laboratory for Isotope Geology, Swedish Museum of Natural History, Box 50007, S-104 05 Stockholm, Sweden Search for other works by this author on: GSW Google Scholar Geology (2007) 35 (7): 655–658. https://doi.org/10.1130/G23764A.1 Article history received: 20 Feb 2007 rev-recd: 28 Feb 2007 accepted: 02 Mar 2007 first online: 09 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 Victor A. Melezhik, Hannu Huhma, Daniel J. Condon, Anthony E. Fallick, Martin J. Whitehouse; Temporal constraints on the Paleoproterozoic Lomagundi-Jatuli carbon isotopic event. Geology 2007;; 35 (7): 655–658. doi: https://doi.org/10.1130/G23764A.1 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 The Paleoproterozoic Lomagundi-Jatuli positive δ13C excursion in sedimentary carbonates represents an event whose magnitude and duration is unique in Earth history, although precise absolute chronology of this event remains poorly constrained. In northeastern Fennoscandia, an ∼1300-m-thick sedimentary-volcanic succession of the Pechenga Greenstone Belt records decline of this isotopic excursion. Zircons from sedimentary rocks that occur within the decline have yielded 207Pb/206Pb dates at 2058 ± 2 Ma (±6 Ma including U decay constant uncertainties) and provide the first maximum age constraint on the termination of the Lomagundi-Jatuli event. Combined with existing constraints, these data indicate an ∼140 m.y. interval characterized by 13C-rich carbonate accumulation. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.