Sea-level changes and global carbon cycle in greenhouse climate: trans-Atlantic correlation of Turonian (mid-Cretaceous) sedimentary archives
Project Reg. No. 17-10982S
The project focuses on fluctuations in carbon cycle and sea level during the Turonian peak greenhouse interval (mid-Cretaceous), studied using comparison of new data at high temporal resolution from two unique sedimentary archives: the Western Interior Seaway (SW North America) and the Bohemian Cretaceous Basin (Czech Republic). The correlation between the two records is facilitated by a combination of carbon-isotope chemostratigraphy and biostratigraphy, providing the highest temporal resolution achieved so far in this interval. Sedimentological profiles and geophysical wireline logs used for interpreting the relative sea-level histories are linked to stable-isotope and elemental-proxy time series, as a basis for interpreting climatic cyclicity and for further improvement and refinement of the Turonian astrochronological timescale. The results are expected to shed light on the controversial issues of the timing and causes of short-term sea-level changes in the mid-Cretaceous greenhouse climate, and the functioning of the global carbon cycle as a key component of the climatic system.
Principal investigator: David Uličný (Institute of Geophysics, Geodynamics)
Co-PIs: Stanislav Čech, Czech Geological Survey; Jiří Zachariáš, Charles University, Faculty of Science
Team members: J. Laurin (Institute of Geophysics), I. Jačková (Czech Geological Survey), J. Trubač (Charles University, Faculty of Science)
International collaboration: B.B. Sageman, Northwestern University, Evanston, IL, USA; M.M. Jones, University of Michigan / Northwestern University, USA; Nikolai Pedentchouk, University of East Anglia, Norwich, U.K.; A.G. Plint, University of Western Ontario, London, ON, Canada; I. Walaszczyk, Uniwersytet Warszawski, Poland
Publications
- Laurin, J., Růžek, B. & Giorgioni, M. (2017). Orbital signals in carbon isotopes: phase distortion as a signature of the carbon cycle. Paleoceanography, 32, ISSN 0883-8305. https://doi.org/10.1002/2017PA003143
- Košťák, M., Čech, S., Uličný, D. & Ekrt, B. (2018). Ammonites, inoceramids and stable carbon isotopes of the Cenomanian-Turonian OAE2 interval in central Europe: Pecínov quarry, Bohemian Cretaceous Basin (Czech Republic). Cretaceous Research, 87, 150-173. http://dx.doi.org/10.1016/j.cretres.2017.04.013
Submitted papers
- Laurin, J., Barclay, R.S., Sageman, B.B., Dawson, R., Pagani, M., Schmitz, M., Eaton, J., McElwain, J.C., McInerney, F.A. (in review). Terrestrial and marginal-marine record of the Oceanic Anoxic Event 2 (OAE 2): high-resolution framework, carbon isotopes, CO2 and sea-level change. Palaeogeography, Palaeoclimatology, Palaeoecology
- Baker, S.J., Belcher, C.M., Barclay, R.S., Hesselbo, S.P., Laurin, J., Sageman, B.B. (revision submitted). CO2 induced climate forcings on the fire record during Cretaceous OAE2. GSA Bulletin
Selected conference presentations
- Plint, A.G., Uličný, D., Čech, S., Walaszczyk, I., Gröcke, D.R., Shank, J.A., Laurin, J., Jarvis, I. (2017): High-frequency, shallow marine clastic sequences across the Turonian – Coniacian boundary, correlated between the Bohemian Cretaceous and Western Canada basins.
In Sames, B: 10th International Symposium on the Cretaceous – Abstracts, 21-26 August 2017, Vienna. – Berichte der Geologischen Bundesanstalt, svazek 120. s. 264. – Geologische Bundesanstalt. Wien - Čech, S. & Uličný, D. (2017): The Turonian-Coniacian stage boundary in the Bohemian Cretaceous Basin (Czech Republic), correlated between nearshore and offshore facies.In Sames, B: 10th International Symposium on the Cretaceous – Abstracts, 21-26 August 2017, Vienna. – Berichte der Geologischen Bundesanstalt, svazek 120. s. 45. – Geologische Bundesanstalt. Wien
- Chroustová, M., Holcová, K., Hradecká, L., Uličný, D. (2018). Foraminifera assemblages and lithological variability, Upper Turonian, Bohemian Cretaceous Basin. In Abstract Book, FORAMS 2018 (International Symposium on foraminifera: Foraminifera in changing world, Edinburgh, UK, June 2018), 108-109.