31st May 2018 01:48 AM EDT
Tracking the journey of the first Americans is difficult, but new evidence supports the theory of the people taking the coastal path to the continent.
While the traditional theory was that early Americans came across the continent through Canada, there have been a number of studies showing that this could not be the case. Instead, Alaska's southern coast could have been the entry point.
A new study, published on May 30 in the journal [[[[[Science Science Advances]] gives an insight on how it is possible for America's early settlers to open up by the coast millennia ago
coastal road for humans
A research team led by the University of Buffalo analyzed boulders and bedrock and found that part of the coastal migration route along Alaska's Pacific Rim was actually accessible to humans 1
Using Surface Exposure Dating, the scientists discovered that the Alexander Archipelago, formerly covered by glaciers, has been ice-free for 17,000 years, thus enabling human immigration
Recent studies indicate that settlers accessed about 16,000 years ago, shortly after the Gateway was explored, potentially the United States.
"Our study prov Some of the earliest geological evidence that a coastal migration route was available to early humans when they colonized the New World, explains study author Alia Lesnek, a UB geology PhD student, in a statement a coastal road, and the appearance of this new ice-free terrain could have caused early humans to migrate south. "
The bones of an ancient 17,000-year-old ringed seal were previously found in a cave nearby, meaning humans with
Study: Not on the actual route
The study shows that human migration across Alaska's southern coast is possible, but since researchers only studied part of the coast, it does not mean that early settlers have really gone this way, and further investigations on other parts of the coast are necessary.
"Unse Research contributes to the debate on how people came to America, "says senior scientist Jason Briner, PhD, Professor of Geology at UB College of Arts and Sciences. "It may add something we know about our origins and how we colonized our planet."
Why Coastal Migration Is Probable
The first belief in the early human journey to America included a route from Siberia to Canada, past an ice-free corridor in the middle of two ice sheets more than 14,000 years ago. However, Briner points out that research has shown that 13,000 years ago, this region has only developed sufficient biodiversity that can support human life.
Archaeological studies have shown that humans lived in Chile at least 15,000 years ago. There is also evidence of human life in Florida, which dates back to 14,500 years ago.
With these data and new insights, coastal theory is not only feasible, but probably due to the timing of route availability
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