New stable isotope data and fossils from the Hirnantian Stage in Bohemia and Spain: implications for correlation and paleoclimate

Combined biostratigraphic, sequence stratigraphic and carbon isotope records from the Barrandian area, Bohemia revealed further details on Hirnantian δ13C excursion (HICE) and improved correlation with rock formations deposited in the Late Ordovician palaeotropics. Carbonaceous and highly fossilifer...

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Bibliographic Details
Main Authors: Mitchell, C. E., Štorch, P. (Petr), Holmden, C., Melchin, M. J., Gutiérrez, J. C.
Format: Conference Object
Language:English
Published: 2011
Subjects:
graptolite
Hirnantian
carbon-isotope
Ordovician
Ice cap
Online Access:http://hdl.handle.net/11104/0208195
Description
Summary:Combined biostratigraphic, sequence stratigraphic and carbon isotope records from the Barrandian area, Bohemia revealed further details on Hirnantian δ13C excursion (HICE) and improved correlation with rock formations deposited in the Late Ordovician palaeotropics. Carbonaceous and highly fossiliferous condensed Perník Bed of the uppermost Králův Dvůr coincides with rising limb of the large positive δ13C excursion and may result from cooling and increased aridity associated with continental ice-cap growth. It is suggested that other cool water carbonates of the peri-Gondwanan Europe may reflect a similar genesis. New data also improved sequence-stratigraphic correlation with Hirnantian rocks at Anticosti Island.

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