Fascinating. Though I’m surprised the Texas Government has not banned this sort of science since it contradicts their beliefs about a 6,000 year old earth as described in their Holy Bible. If this new discovery ever makes it to a Texas schoolbook, there will have to be a sticker claiming the carbon dating1 is just a theory, one among many, with a Jesus-Fish superimposed over the arrow heads.
For many years, scientists have thought that the first Americans came here from Asia 13,000 years ago, during the last ice age, probably by way of the Bering Strait. They were known as the Clovis people, after the town in New Mexico where their finely wrought spear points were first discovered in 1929.
But in more recent years, archaeologists have found more and more traces of even earlier people with a less refined technology inhabiting North America and spreading as far south as Chile.
And now clinching evidence in the mystery of the early peopling of America — Clovis or pre-Clovis? — for nearly all scientists appears to have turned up at a creek valley in the hill country of what is today Central Texas, 40 miles northwest of Austin.
The new findings establish that the last major human migration, into the Americas, began earlier than once thought. And the discovery could change thinking about how people got here (by coastal migrations along shores and in boats) and how they adapted to the new environment in part by making improvements in toolmaking that led eventually to the technology associated with the Clovis culture.
The Texas archaeologists said the new dig site has produced the largest number of artifacts dating to the pre-Clovis period. The dates for the sediments bearing the stone tools were determined to range from 13,200 to 15,500 years ago.
Given the lack of sufficient organic material buried around the tools, the radiocarbon dating method was useless. Instead, earth scientists at the University of Illinois, Chicago, used a newer technique known as optically stimulated luminescence. This measures light energy trapped in minerals to reveal how long ago the soil was last exposed to sunlight.
(click here to continue reading Clovis People Weren’t First in Americas, Texas Arrowheads Suggest – NYTimes.com.)
- actually optically stimulated luminescence [↩]