نتایج جستجو برای: last glacial maximum

تعداد نتایج: 544572  

2002
Carl Wunsch

The inference, from radiocarbon and other data, that the North Atlantic Ocean circulation during the Last Glacial Maximum was reduced, is examined. Because glacial periods are thought to be windier than non-glacial ones, a reduced circulation is difficult to rationalize. A first step is to note that the circulation of mass is unlikely to correspond simply to the circulation of heat or freshwate...

Journal: :Geomorphology 2021

Comprehensive glacial Quaternary studies involving geochronological methods, modelling of ice topography with the support field geomorphological and geological data in Balkan Peninsula are relatively scarce, although there is evidence past glaciations several mountain ranges. Here, we present research on extent timing northern Velebit Mt. coastal Croatia inferences climate during that time. Bas...

Journal: :Revista mexicana de ciencias geológicas 2021

Numerous high elevation tropical mountains around the world show evidence of past glacial activity during Last Glacial Maximum (LGM). Cerro Chirripó in Costa Rica exhibits paleoglacial landforms such as cirques, moraine deposits and polished striated bedrock surfaces. We used aerial imagery (1:25000) contour lines to develop a Digital Elevation Model (DEM) for LGM. determined paleo-equilibrium ...

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