Marine rapid environmental climatic change in the Cretaceous greenhouse world

Yılmaz, İsmail Ömer
Michael, Wagreich
The Cretaceous Period serves as a relevant model to understand greenhouse climate evolution. As atmospheric CO2 concentrations continue to rise in the twenty-first century, critical questions put forward are 1) how the Cretaceous Earth System could have been maintained in the “greenhouse” state, if there are some variations, 2) why and how fast did climatic and palaeoenvironmental changes happened during the Cretaceous, and 3) what records were preserved in the Earth's archives that enable the comparison of Cretaceous rates of paleoenvironmental changes with today's global changes. In fact, rapid and severe global environmental and climatic changes happened in the Cretaceous greenhouse world including oceanic anoxic events, oceanic red beds, “cold snaps” or glaciations and carbonate platform drowning events. This special issue originated from the final workshop of UNESCO International Geoscience Program IGCP 555 and the Pardee session of the Geological Society of America 2010 annual meeting. Participants and contributors mainly focused on the causes, processes, and consequences of rapid environmental/climatic changes that happened in the Cretaceous greenhouse world.
Cretaceous Research


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Gülbeyaz, Önder; Akyürek, Sevda Zuhal; Department of Geodetic and Geographical Information Technologies (2018)
Understanding the fluctuations in carbon balance and global warming with respect to the global climate change and creating solutions, has become one of the most important topics in ecological studies especially during last decades. These changes, in particular for the terrestrial ecosystems, can be monitored using gross primary productivity (GPP), its derivative net primary productivity (NPP) (the subtraction of autotrophicrespirationfromGPP)andnetecosystemproductivity(NEP)(subtraction of both plant respirat...
KIZILOGLU, N; CIVELEK, R (1992-07-01)
The evolutionary sequences of solar models have been constructed in which mixing length parameter-alpha varies in the outer convective region during the evolution. The calculations were performed by using the anisotropic mixing length theory of Canuto (1990). In the case of weak turbulence the correct luminosity and radius values for the present Sun were obtained for a alpha(x) value equal to 0.6. The total neutrino flux was found as 3.65 SNU. While the depletion of Li-6 was complete, Li-7 was not depleted ...
Effects of nutrient and water level changes on the composition and size structure of zooplankton communities in shallow lakes under different climatic conditions: a pan-European mesocosm experiment
Tavsanoglu, Ulku Nihan; Sorf, Michal; Stefanidis, Konstantinos; Brucet, Sandra; TÜRKAN, SEMRA; Agasild, Helen; Baho, Didier L.; Scharfenberger, Ulrike; Hejzlar, Josef; Papastergiadou, Eva; Adrian, Rita; Angeler, David G.; Zingel, Priit; Cakiroglu, Ayse Idil; Ozen, Arda; Drakare, Stina; Sondergaard, Martin; Jeppesen, Erik; Beklioğlu, Meryem (Springer Science and Business Media LLC, 2017-06-01)
Lentic ecosystems act as sentinels of climate change, and evidence exists that their sensitivity to warming varies along a latitudinal gradient. We assessed the effects of nutrient and water level variability on zooplankton community composition, taxonomic diversity and size structure in different climate zones by running a standardised controlled 6-months (May to November) experiment in six countries along a European north-south latitudinal temperature gradient. The mesocosms were established with two diff...
Citation Formats
İ. Ö. Yılmaz and W. Michael, “Marine rapid environmental climatic change in the Cretaceous greenhouse world,” Cretaceous Research, pp. 1–6, 2012, Accessed: 00, 2020. [Online]. Available: