{"id":14231,"date":"2019-02-18T13:42:32","date_gmt":"2019-02-18T12:42:32","guid":{"rendered":"https:\/\/www.ig.cas.cz\/?page_id=14231"},"modified":"2019-02-19T12:56:14","modified_gmt":"2019-02-19T11:56:14","slug":"project-global-carbon-cycle","status":"publish","type":"page","link":"https:\/\/www.ig.cas.cz\/en\/project-global-carbon-cycle\/","title":{"rendered":"Sea-level changes and global carbon cycle in greenhouse climate: trans-Atlantic correlation of Turonian (mid-Cretaceous) sedimentary archives"},"content":{"rendered":"

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Sea-level changes and global carbon cycle in greenhouse climate: trans-Atlantic correlation of Turonian (mid-Cretaceous) sedimentary archives<\/h3>\n
Funding: Czech Science Foundation (GA\u010cR), 2017-2019
Project Reg. No. 17-10982S<\/div>\n
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The project focuses on fluctuations in carbon cycle and sea level during\u00a0 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.<\/p>\n

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Principal investigator<\/strong>: David Uli\u010dn\u00fd<\/strong><\/a> (Institute of Geophysics, Geodynamics<\/a>)<\/p>\n

Co-PIs<\/strong>: Stanislav \u010cech, Czech Geological Survey; Ji\u0159\u00ed Zachari\u00e1\u0161, Charles University, Faculty of Science<\/p>\n

Team members<\/strong>: J. Laurin<\/a> (Institute of Geophysics), I. Ja\u010dkov\u00e1 (Czech Geological Survey), J. Truba\u010d (Charles University, Faculty of Science)<\/p>\n

International collaboration:<\/strong> 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<\/p>\n

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Publications<\/strong><\/h3>\n