The Cromerian Stage or Cromerian Complex, also called the Cromerian (Cromerium), is a stage in the Pleistocene glacial history of north-western Europe, mostly occurring more than half a million years ago. It is named after the East Anglian town of Cromer in Great Britain where interglacial deposits that accumulated during part of this stage were first discovered. The stratotype for this interglacial is the Cromer Forest Bed situated at the bottom of the coastal cliff near West Runton. The Cromerian stage preceded the Anglian and Elsterian glacials and show an absence of glacial deposits in western Europe, which led to the historical terms Cromerian interglacial and the Cromerian warm period (Kromer-Warmzeit). It is now known that the Cromerian consisted of multiple glacial and interglacial periods.
The core of the Cromerian is the first half of the Middle Pleistocene stage (Ionian) approximately 800-500 ka ago, just before the Anglian glaciation. In terms of Marine isotope stages (MIS) this corresponds to MIS 19 to MIS 13. Some authors instead put the start at MIS 22, corresponding to a start 900 ka ago, which includes the last 100 ka of the Calabrian stage, after the Beestonian Stage. Some sources today correlate the Elster glaciation to MIS 10 instead of MIS 12, while keeping the Cromerian running up to the start of the Elsterian. The result is an end to the Cromerian stage in continental Europe at the end of MIS 11 (400 ka ago), and that the continental Cromerian continues beyond its end in Britain and Ireland and runs in parallel to the Anglian and Hoxnian Stages (MIS 12-11).
In the Alpine region the corresponding stage is called Günz.
The Cromerian had been equated to the Aftonian in North America. However, the Aftonian, along with the Yarmouthian (Yarmouth), Kansan, and Nebraskan, have been abandoned by North American Quaternary geologists and merged into the Pre-Illinoian. At this time, the Cromerian is correlated with the period of time, which includes the Pre-Illinoian C, Pre-Illinoian D, and Pre-Illinoian E glaciations of North America.
Cette page est générée automatiquement et peut contenir des informations qui ne sont pas correctes, complètes, à jour ou pertinentes par rapport à votre recherche. Il en va de même pour toutes les autres pages de ce site. Veillez à vérifier les informations auprès des sources officielles de l'EPFL.
La glaciation saalienne (Saale-Eiszeit ou Saale-Kaltzeit en allemand) est le nom donné en Europe septentrionale à l'avant-dernière période glaciaire traditionnelle du Pléistocène. Elle a duré de avant le présent, ce qui correspond aux stades isotopiques 8 à 6 de la chronologie isotopique. Cette période doit son nom à la rivière Saale, en Allemagne. Le Saalien est corrélé à la glaciation de Riss dans la nomenclature alpine. Glaciation elstérienne Glaciation vistulienne Saalien Catégorie:Climat du Pléistocèn
thumb|317px|droite|Comparaison des limites de l'extension glaciaire au Saalien (en jaune) et au Vistulien (en rouge). La glaciation vistulienne ou vistulien (ou en conservant le nom allemand weichsélien ou glaciation weichsélienne) est le nom donné à la dernière glaciation en Europe du Nord (Scandinavie, une grande partie de la Grande-Bretagne, la Pologne et le nord-est de l'Allemagne) et est utilisé par extension pour parler de l'ensemble de l'inlandsis eurasiatique. Elle est l'équivalent de la glaciation du Würm ou Würmien des Alpes.
The Eburonian (Eburon or Eburonium), or, much less commonly, the Eburonian Stage, is a glacial complex in the Calabrian age of the Pleistocene epoch and lies between the Tegelen and the Waalian interglacial. The transition from the Tegelen to the Eburonian started about 1.78 million years ago, lasted 480,000 years (to 1.3 million years ago). In geologic strata, at its base, from its startpoint, the Neogene underlies different Gelasian deposits starkly in much of the Netherlands.
Fournit un aperçu du changement climatique historique, en se concentrant sur les émissions de méthane, la sensibilité au climat à l'équilibre et l'évolution du modèle climatique.
Discuter de l'impact de la variabilité climatique sur les villes, explorer des solutions et des défis dans le contexte des tendances du réchauffement climatique.
Together with the latent heat stored in glacial ice sheets the ocean heat uptake carries the lion’s share of glacial/interglacial changes in the planetary heat content but little direct information on the global mean ocean temperature (MOT) is available to ...
The Antarctic Vostok ice core provided compelling evidence of the nature of climate, and of climate feedbacks, over the past 420,000 years. Marine records suggest that the amplitude of climate variability was smaller before that time, but such records are ...
The largest natural increases in atmospheric CO2 concentration as recorded in ice cores occur when the Earth climate abruptly shifts from a glacial to an interglacial state. Open questions remain regarding the processes at play, the sequences of events and ...