The early Katian (Late Ordovician) reefs near Saku, northern Estonia and the age of the Saku Member, Vasalemma Formation.

Kroger B, Hints L, Lehnert O, Mannik P, Joachimski M (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Estonian Journal of Earth Sciences Estonian Academy Publishers

Publisher: Estonian Academy Publishers

Book Volume: 63

Pages Range: 271-276

DOI: 10.3176/earth.2014.30

Abstract

Reefs developed simultaneously during the latest Sandbian/earliest Katian global Guttenberg Isotopic Carbon Excursion (GICE) in several places across Baltoscandia. Latest Sandbian/earliest Katian patch reefs are also described from the Vasalemma Formation of northern Estonia. The Saku Member of the Vasalemma Formation was previously considered as a proximal facies related to the reefs. However, the Saku Member clearly post-dates the GICE interval and ranges from the latest Keila to Rakvere in terms of regional stages. Some small reefs occur in direct proximity to the stratotype of the Saku Member. New δ13C data from the stratotype section and the adjacent reefs indicate that these reefs developed before the deposition of the Saku Member during the GICE interval. The chemostratigraphic data support the hypothesis of a short-time Baltoscandian reef growth event that terminated during the GICE interval.

Authors with CRIS profile

Oliver Lehnert Professur für Paläontologie (Schwerpunkt Faziesanalyse) Michael Joachimski Lehrstuhl für Geologie (Exogene Dynamik)

Involved external institutions

Helsingin yliopisto / University of Helsinki FI Finland (FI) Tallinn University of Technology EE Estonia (EE)

How to cite

APA:

Kroger, B., Hints, L., Lehnert, O., Mannik, P., & Joachimski, M. (2014). The early Katian (Late Ordovician) reefs near Saku, northern Estonia and the age of the Saku Member, Vasalemma Formation. Estonian Journal of Earth Sciences, 63, 271-276. https://doi.org/10.3176/earth.2014.30

MLA:

Kroger, Bjorn, et al. "The early Katian (Late Ordovician) reefs near Saku, northern Estonia and the age of the Saku Member, Vasalemma Formation." Estonian Journal of Earth Sciences 63 (2014): 271-276.

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