delta C-13 chemostratigraphy in the upper Tremadocian through lower Katian (Ordovician) carbonate succession of the Siljan district, central Sweden

Oliver Lehnert, Guido Meinhold, Rongchang Wu, Mikael Calner, Michael M. Joachimski

Research output: Contribution to journalArticlepeer-review

24 Citations (SciVal)

Abstract

Based on delta C-13 data from two drillcores recovered from the Siljan district, we present a first continuous carbon isotope record of the upper Tremadocian-lower Katian limestone succession of central Sweden. New names for some isotopic carbon excursions from the Cambrian-Ordovician boundary through the basal Darriwilian are introduced. The Mora 001 core from the western part of the Siljan impact structure ranges through the Lower-Middle Ordovician, whereas the Solberga 1 core from its eastern part ranges through the Middle-lower Upper Ordovician. Upper Tremadocian and Floian units are extremely condensed and include extensive stratigraphic gaps. Multiple hardgrounds, sometimes with minor karstic overprint, imply recurrent periods of erosion and/or non-deposition. Like in other parts of Sweden, the Dapingian and Darriwilian succession is characterized by a relatively complete sedimentary record and low sedimentation rates.
Original languageEnglish
Pages (from-to)277-286
JournalEstonian Journal of Earth Sciences
Volume63
Issue number4
DOIs
Publication statusPublished - 2014

Subject classification (UKÄ)

  • Geology

Keywords

  • Sweden
  • Siljan impact structure
  • Ordovician
  • carbon isotope
  • stratigraphy
  • MDICE
  • GICE
  • Kope

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