Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
. Earth Science News .




WATER WORLD
Coral files reveal time of first Polynesian settlements
by Staff Writers
Burnaby, Canada (SPX) Nov 09, 2012


This shows pristine (upper) and used (lower) surfaces of an Acropora coral file used to sculpt and smooth wood and shell surfaces. Credit: Burley D, Weisler MI, Zhao.

Polynesia was one of the last places on Earth to be settled by humans, and new techniques reveal that this settlement first occurred within a 16 year window nearly 3000 years ago.

The research, published in the open access journal PLOS ONE by David Burley and colleagues from Simon Fraser University, Canada, reveals that the first human settlers lived in a founder colony on the islands of Tonga between 2830 to 2846 years ago.

To arrive at this precise figure, the researchers used a high-precision technique to estimate the age of coral files that early settlers used to sculpt and smooth wood and shell surfaces.

As Dr. Burley states, "This degree of precision is impossible using radiocarbon and other dating techniques.

It provides significant new opportunities for our understanding of the exploration and settlement of the far distant islands spread across the South Pacific."

Citation: Burley D, Weisler MI, Zhao J-x (2012) High Precision U/Th Dating of First Polynesian Settlement. PLoS ONE 7(11): e48769. doi:10.1371/ journal.pone.0048769

.


Related Links
Simon Fraser University
Public Library of Science
Water News - Science, Technology and Politics






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





WATER WORLD
Uncertainty of future South Pacific Island rainfall explained
Honolulu HI (SPX) Oct 30, 2012
With greenhouse warming, rainfall in the South Pacific islands will depend on two competing effects - an increase due to overall warming and a decrease due to changes in atmospheric water transport - according to a study by an international team of scientists around Matthew Widlansky and Axel Timmermann at the International Pacific Research Center, University of Hawaii at Manoa. In the Sou ... read more


WATER WORLD
Doctors without Border on first US mission

60 migrants feared drowned off Bangladesh

Uranium-polluted water escapes from Finnish mine

Sympathy for Sandy among Pakistan's forgotten flood victims

WATER WORLD
HTC and Apple reach global settlement

Nanocrystals and nickel catalyst substantially improve light-based hydrogen production

Apple still perched high, but seems vulnerable

Radar Production Readiness Review For Indonesia National Air Space Surveillance Program Completed

WATER WORLD
Superbug MRSA Identified in U.S. Wastewater Treatment Plants

Coral files reveal time of first Polynesian settlements

Bluefin tuna quotas up for renewal

Geologist calls for advances in restoration sedimentology

WATER WORLD
Carbon dioxide - our salvation from a future ice age?

No accord yet on Antarctic protected zone

UMass Amherst climate modeler identifies trigger for Earth's last big freeze

Russia backs its claims for Arctic Shelf with evidence

WATER WORLD
Arabica coffee could be extinct in the wild within 70 years

Carbon buried in the soil rises again

Scientists Identify Insect-repelling Compounds in Jatropha

Brazil's top farmers group to open office in China

WATER WORLD
Floods claim as many as 16 lives in Haitian city: officials

Guatemala quake toll lowered to 42

$38 mn needed to help victims of Nigeria floods: UN

Two dead after strong Myanmar quake

WATER WORLD
China gives $12 million towards AU peace, security efforts

W.African leaders meet on military plan for north Mali

W.African leaders prepare for Mali military intervention

Sudan rebels 'shoot down' air force bomber

WATER WORLD
Weizmann Institute scientists observe as humans learn to sense like a rat, with "whiskers"

Healthy Living Adds 14 Years to Your Life

Bigger human genome pool uncovers more rare variants

Village in Bulgaria said Europe's oldest




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement