New data on Ordovician stable isotope record and conodont biostratigraphy from the Viki reference drill core, Saaremaa Island, western Estonia

The Viki drill core is one of the reference sections for the Estonian bedrock succession, characterizing strata of Mid Ordovician through early Silurian age in the eastern part of the Baltoscandian basin. In this article, we present the hitherto missing Ordovician stable carbon isotope curve and Mid...

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Bibliographic Details
Published in:GFF 2014-01, Vol.136 (1), p.100-104
Main Authors: Hints, Olle, Martma, Tõnu, Männik, Peep, Nõlvak, Jaak, Põldvere, Anne, Shen, Yanan, Viira, Viive
Format: Article
Language:English
Subjects:
Baltoscandia
Carbon
carbon isotopes
chitinozoans
conodonts
Isotopes
Ordovician
Sulfur
sulfur isotopes
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Summary:The Viki drill core is one of the reference sections for the Estonian bedrock succession, characterizing strata of Mid Ordovician through early Silurian age in the eastern part of the Baltoscandian basin. In this article, we present the hitherto missing Ordovician stable carbon isotope curve and Middle Ordovician conodont biostratigraphy from the Viki core to complement the previous lithological, geochemical, geophysical and biostratigraphic studies. For the first time, the Hirnantian sulfur isotope excursion is reported from the eastern Baltic region, showing high amplitude and tight coupling with carbon cycling.
ISSN:1103-5897
2000-0863
DOI:10.1080/11035897.2013.873989