Evidence of geological 'facelift' in the Appalachians
How does a mountain range maintain its youthful, rugged appearance after 200 million years without tectonic activity? Try a geological facelift – courtesy of the earth's mantle.
How does a mountain range maintain its youthful, rugged appearance after 200 million years without tectonic activity? Try a geological facelift – courtesy of the earth's mantle.
Earth Sciences
Jan 30, 2013
0
0
(Phys.org) -- The growth of high topography on the Tibetan Plateau in Sichuan, China, began much earlier than previously thought, according to an international team of geologists who looked at mountain ranges along the eastern ...
Earth Sciences
Aug 16, 2012
2
0
Using sophisticated methods of dating rocks, a team including University of Southampton researchers based at the National Oceanography Centre, Southampton, have pinned down the timing of the start of an episode of an ancient ...
Earth Sciences
Jun 15, 2011
9
0
(PhysOrg.com) -- The landscape of Central Africa 65 million years ago was a low-elevation tropical belt, but the jury is still out on whether the region's mammals browsed and hunted beneath the canopy of a lush rainforest.
Archaeology
Oct 20, 2010
0
0
A 17-member team has found what may be the smoking gun of a much-debated proposal that a cosmic impact about 12,900 years ago ripped through North America and drove multiple species into extinction.
Earth Sciences
Jul 20, 2009
5
1