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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 ...
According to the standard accepted theory, the Clovis people crossed the Beringia land bridge over the Bering Strait from Siberia to Alaska during the ice age when there was a period of lowered sea levels, then made their way southward through an ice-free corridor east of the Rocky Mountains, located in present-day Western Canada, as the ...
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.
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 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 ...
A 2017 study concluded that "by around 15–14,000 cal BP an ice-free corridor formed between the Laurentide and Cordilleran ice sheets potentially allowing humans to disperse from Beringia to continental North America; arguably, this corridor wouldn’t have been biologically viable for human migration before ca. 13–12,500 cal BP, however ...
However, the early dates associated with Monte Verde appear to weaken this theory. Prior to 13,000 BP, the Cordilleran Glacier (which covered much of present-day Canada) had not yet melted enough to reveal an ice-free corridor for people to reasonably journey by foot. The Monte Verde radiocarbon dates precede 13,000 BP, despite the fact that ...
c. 9500 BC – Cordilleran and Laurentide Ice Sheets retreat enough to open a habitable ice-free corridor through the northern half of the continent (North America) along the eastern flank of the Rocky Mountains. c. 1000 BCE-1000 CE – Woodland Period of Pre-Columbian Native Americans in Eastern America.