997 resultados para lpf 94


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Das Blatt stammt aus der Inkunabel Inc. oct. 320 (Ohly/Sack 3003)

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"Zum Himmel sei dein Angesicht gekehrt", "Euch neid' ich nicht, ihr armen Thoren", Frankfurter Latern, Übersetzung von Gedichten in das Elsässische, "Hast du die dreißig Gulde krieht", "Der Dambor un die Bäckermahd"

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Paul Bräuer

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Vorbesitzer: LOP; Maria Frankhe; Hans Adam von Reisach; Maria von Wobeser (geb. Scherbius)

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The Greenland ice sheet is accepted as a key factor controlling the Quaternary glacial scenario. However, the origin and mechanisms of major Arctic glaciation starting at 3.15 Ma and culminating at 2.74 Ma are still controversial. For this phase of intense cooling Ravelo et al. proposed a complex gradual forcing mechanism. In contrast, our new submillennial-scale paleoceanographic records from the Pliocene North Atlantic suggest a far more precise timing and forcing for the initiation of northern hemisphere glaciation (NHG), since it was linked to a 2-3 °C surface water warming during warm stages from 2.95 to 2.82 Ma. These records support previous models, claiming that the final closure of the Panama Isthmus (3.0- ~2.5 Ma induced an increased poleward salt and heat transport. Associated strengthening of North Atlantic Thermohaline Circulation and in turn, an intensified moisture supply to northern high latitudes resulted in the build-up of NHG, finally culminating in the great, irreversible climate crash at marine isotope stage G6 (2.74 Ma). In summary, there was a two-step threshold mechanism that marked the onset of NHG with glacial-to-interglacial cycles quasi-persistent until today.