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The coastal migration hypothesis is one of two leading hypothesis about the settlement of the Americas at the time of the Last Glacial Maximum.It proposes one or more migration routes involving watercraft, via the Kurile island chain, along the coast of Beringia and the archipelagos off the Alaskan-British Columbian coast, continuing down the coast to Central and South America.
Opening of an ice-free corridor did not occur until after 13,000 to 12,000 BP. [58] [59] [60] The early environment of the ice-free corridor was dominated by glacial outwash and meltwater, with ice-dammed lakes and periodic flooding from the release of ice-dammed meltwater. [58] Biological productivity of the deglaciated landscape increased ...
The Ice Free Corridor is a subject of debate among anthropologists in recent years. Recent studies have provoked skepticism, with areas of discussion including the lack of evidence of sufficient flora in the area to support megafaunal migration, [ 12 ] to radiometric dating placing the emergence of a corridor through the central Canadian Shield ...
Created Date: 8/30/2012 4:52:52 PM
The dark grey colour represents the ice-free areas, while green represents areas with sea ice. The Northwest Passage (NWP) is the sea lane between the Atlantic and Pacific oceans through the Arctic Ocean, near the northern coast of North America via waterways through the Arctic Archipelago of Canada.
An "ice-free corridor" through western Canada to the northern plains is thought to have opened up no earlier than 13,500 years ago. However, deglaciation in the Pacific Northwest may have taken place more rapidly and a coastal route could have been available by 17,000 years ago.
Examples of Clovis and other Paleoindian point forms, markers of archaeological cultures in North America. The Solutrean hypothesis on the peopling of the Americas is the claim that the earliest human migration to the Americas began from Europe during the Solutrean Period , with Europeans traveling along pack ice in the Atlantic Ocean .
The first sea ice-free September could occur as early as the 2030s, the study found. Arctic sea ice has been declining for decades but has shrunk at an even faster rate in the past 20 years.