Sentences with phrase «glacial sea level drop»
A simulation of the Siberian continental margin after glacial sea level drop and exposure to the cold atmosphere, snapshot as sea level rises during the deglaciation.
http://geosci.uchicago.edu/ Not exact matches
Sea level dropped during the last glacial maximum, but there was no ice sheet in Siberia, so the surface was exposed to the really cold atmosphere, and the ground froze to a depth of ~ 1.5 km.
During the last glacial period, sea level dropped 400 feet as water was tied up in ice, and as we have moved out of the cold glacial period, sea level has recovered.
Theoretically, therefore, we could never have thick permafrost under the sea,» says Portnov «However, 20 000 years ago, during the last glacial maximum, the sea level dropped to minus 120 meters.