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Cretaceous Thermal Maximum : ウィキペディア英語版 | Cretaceous Thermal Maximum Cretaceous Thermal Maximum, also known as Cretaceous Thermal Optimum, was a period early in the Late Cretaceous notable for its dramatic increase in global temperatures. ==Characteristics==
Carbon dioxide levels reached astounding heights and the sea levels elevated. Plants such as plankton became "glassy" and temperatures increased. Scientists predicted that the Cretaceous Thermal Maximum occurred during the Cenomanian/Turonian transition based from the fact that there was a major downfall in global climate. It was also shown to be the most extreme carbon cycle recorded in the past 100 million years.〔Foster, A., et al. "The Cretaceous Thermal Maximum and Oceanic Anoxic Event 2 in the Tropics: Sea- Surface Temperature and Stable Organic Carbon Isotopic Records from the Equatorial Atlantic." American Geophysical Union, Fall Meeting 2006. The Smithsonian/NASA Astrophysics Data System. Web. 20 Oct. 2009. 〕〔Poulsen, Christopher J., Andrew S. Gendaszek, and Robert L. Jacob. "Did the rifting of the Atlantic Ocean cause the Cretaceous thermal maximum?" Geology 31.2 (2003): 115-118. Web. 20 Oct. 2009. .〕
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