advance of glacier造句

• The Mintaka Pass was the main one used in ancient times until the fairly recent advance of glacier ice.
• Canaan Valley and surrounding areas were strongly impacted by the southward advance of glaciers some 15, 000 years ago.
• There is evidence for five westward advances of glacier lobes in the southern Chilean Lake District and Chilo?( 40 42.5?S ).
• The creodonts, forerunners of modern Ice Age mammals of the Pleistocene like saber-toothed cats, woolly mammoths, mastodons and dire wolves spread across the continent in advance of glaciers.
• During the last ice age, which ended 10 000 years ago, the advance of glaciers continuously plucked and scoured the Boreal Shield, forming striations in the bedrock and carrying large boulders many kilometers.
• In a kind of reverse-greenhouse effect, a sudden depletion of methane in the atmosphere could cause a dramatic drop in temperatures, leading to an advance of glaciers similar to the familiar ice ages of more recent times.
• Although Blackwelder originally believed the Bull Lake glaciation occurred during the early Wisconsin Glaciation ( the last major advance of glaciers in the North America ), new data generated and described by geologist Gerald M . Richmond in the 1940s and 1960s more accurately dated the glacial period to the Illinoian Stage.