Atlantis Online
October 15, 2024, 02:15:17 am
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Has the Location of the Center City of Atlantis Been Identified?
http://www.mysterious-america.net/hasatlantisbeenf.html
 
  Home Help Arcade Gallery Links Staff List Calendar Login Register  

Footprints in the ash: Humans in central Mexico 40,000 years ago

Pages: [1]   Go Down
  Print  
Author Topic: Footprints in the ash: Humans in central Mexico 40,000 years ago  (Read 558 times)
Goddess of Peace, Justice & Order
Superhero Member
******
Posts: 2172



« on: May 30, 2008, 10:08:20 pm »

Footprints in the ash

By Sid Perkins
May 29th, 2008
Humans may have been walking around what is now central Mexico 40,000 years ago
HUMAN PRINTSFootprints (one left) left in volcanic ash that fell in central Mexico’s Valsequillo Basin about 40,000 years could be evidence that humans have inhabited the Americas far longer than previously confirmed. Laser scans of the prints (right) confirm their human origins, the researchers report today at the American Geophysical Union meeting.GonzalezFootprints left in volcanic ash that fell in central Mexico’s Valsequillo Basin about 40,000 years ago are evidence that humans have inhabited the Americas far longer than previously confirmed, a new study suggests.

Analyses of three-dimensional laser scans of the imprints (example at right) confirm their human origin, says Silvia Gonzalez, a geoarchaeologist at Liverpool John Moores University in England.

Previous finds of human remains elsewhere in the region couldn’t be precisely dated because they were found in layers of mixed gravels that probably incorporated materials of many different ages.

However, a new analysis of the coarse-grained, print-ridden volcanic ash — which would have hardened quickly after it fell, says Gonzalez — strongly suggest the material fell around 40,000 years ago, she and her colleagues reported today in Fort Lauderdale, Fla., at a meeting of the American Geophysical Union.

Excavations at several sites have suggested that humans have inhabited the Western Hemisphere for at least 20,000 years, but results suggesting dates of occupation before 14,000 years ago typically haven’t been confirmed and remain controversial.

Nevertheless, says Gonzalez, recent excavations at a site in Baja California have unearthed a rock shelter containing heaps of shells that have been carbon-dated as 44,000 years old, a finding that bolsters the notion that people lived throughout the region about 40 millennia ago.

http://www.sciencenews.org/view/generic/id/32728/title/Footprints_in_the_ash
« Last Edit: May 30, 2008, 10:10:28 pm by Goddess of Peace, Justice & Order » Report Spam   Logged

Share on Facebook Share on Twitter

Goddess of Peace, Justice & Order
Superhero Member
******
Posts: 2172



« Reply #1 on: May 30, 2008, 10:11:32 pm »



Footprints (one left) left in volcanic ash that fell in central Mexico’s Valsequillo Basin about 40,000 years could be evidence that humans have inhabited the Americas far longer than previously confirmed. Laser scans of the prints (right) confirm their human origins, the researchers report today at the American Geophysical Union meeting.

Report Spam   Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by EzPortal
Bookmark this site! | Upgrade This Forum
SMF For Free - Create your own Forum
Powered by SMF | SMF © 2016, Simple Machines
Privacy Policy