δ 13 C chemostratigraphy in the upper Tremadocian through lower Katian (Ordovician) carbonate succession of the Siljan district, central Sweden
Journal: Estonian Journal of Earth Sciences, 201463, 4: 277 - 286
DOI: https://doi.org/10.3176/earth.2014.31
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/6691
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/6691
Lehnert, O.; Meinhold, G.; Wu, R.; Calner, M.; Joachimski, M. M., 2014: δ 13 C chemostratigraphy in the upper Tremadocian through lower Katian (Ordovician) carbonate succession of the Siljan district, central Sweden. In: Estonian Journal of Earth Sciences, Band 63, 4: 277 - 286, DOI: 10.3176/earth.2014.31.
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Based on δ13C 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.
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