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Evolution of middle to Late Cretaceous oceans—A 55 m.y. record of Earth's temperature and carbon cycle
A new 55 m.y. global compilation of benthic foraminifera δ 13 C and δ 18 O for the middle to Late Cretaceous shows that there was widespread formation of bottom waters with temperatures >20 °C duringExpand
High-resolution carbon isotope records of the Aptian to Lower Albian from SE France and the Mazagan Plateau (DSDP Site 545): a stratigraphic tool for paleoceanographic and paleobiologic reconstruction
High-resolution carbon isotope stratigraphy is established for the Aptian to Lower Albian of the Vocontian Basin (SE France), and correlated to the carbon isotope record of the Mazagan Plateau (DSDPExpand
Isotopic Evidence for Glaciation During the Cretaceous Supergreenhouse
The Turonian (93.5 to 89.3 million years ago) was one of the warmest periods of the Phanerozoic eon, with tropical sea surface temperatures over 35°C. High-amplitude sea-level changes and positiveExpand
Stable organic carbon isotope stratigraphy across Oceanic Anoxic Event 2 of Demerara Rise, western tropical Atlantic
Ocean Drilling Program (ODP) Leg 207 recovered expanded sections of organic-carbon-rich laminated shales on Demerara Rise (western tropical Atlantic). High-resolution organic carbon isotope and totalExpand
Campanian – Maastrichtian carbon isotope stratigraphy: shelf-ocean correlation between the European shelf sea and the tropical Pacific Ocean
The long-term climate cooling during Campanian - Maastrichtian times is not well understood to date, especially because of the uncertainty introduced by low temporal resolution of biostratigraphy andExpand
Forcing mechanisms for mid-Cretaceous black shale formation: evidence from the Upper Aptian and Lower Albian of the Vocontian Basin (SE France)
Calcareous nannoplankton, palynomorph, benthic foraminifera, and oxygen isotope records from the supraregionally distributed Niveau Paquier (Early Albian age, Oceanic Anoxic Event 1b) and regionallyExpand
Warm saline intermediate waters in the Cretaceous tropical Atlantic Ocean
During the Cretaceous period, warm deep and intermediate waters filled the oceans. Evidence from benthic foraminferal δ18O and Mg/Ca ratios suggests that the intermediate water masses in theExpand
Tectonically restricted deep-ocean circulation at the end of the Cretaceous greenhouse
The evolution of global ocean circulation toward deep-water production in the high southern latitudes is thought to have been closely linked to the transition from extreme mid-Cretaceous warmth toExpand
Early Maastrichtian carbon cycle perturbation and cooling event: Implications from the South Atlantic Ocean
Published stable isotope records in marine carbonate are characterized by a positive ?18O excursion associated with a negative ?13C shift during the early Maastrichtian. However, the cause and evenExpand
Empirical calibration of the clumped isotope paleothermometer using calcites of various origins
We present the first universal calibration of the clumped isotope thermometer for calcites of various mineralizing types. These are an eggshell of an ostrich, a tropical bivalve, a brachiopod shell,Expand