"Hoke's discovery not only makes the plateau larger than previously thought, but also suggests that some of the topography is millions of years younger."
New York, April 11 - In a major find, scientists have determined that parts of Tibetan Plateau, the world's largest, highest, and flattest plateau, were some 965 km longer than previously documented.

The scientists have determined the elevation history of the southeast margin of the Tibetan Plateau.

By the 'Eocene' epoch -, the southern part of the plateau extended some 600 miles - more to the east than previously documented. This discovery upends a popular model for plateau formation, Gregory Hoke, an assistant professor of earth sciences at Syracuse University, claimed.

The tectonic and topographic evolution of the southeast margin has been the subject of considerable controversy.

Our study provides the first quantitative estimate of the past elevation of the eastern portions of the plateau, Hoke said.

Known as the 'Roof of the World', the Tibetan Plateau covers more than 970,000 square miles in Asia and India and reaches heights of over 15,000 feet.

The plateau also contains a host of natural resources, including large mineral deposits and tens of thousands of glaciers and is the headwaters of many major drainage basins.

Historically, geologists have thought that lower crustal flow - a process by which hot, ductile rock material flows from high- to low-pressure zones - helped elevate parts of the plateau about 20 million years ago.

But years of studying rock and water samples from the plateau have led Hoke to rethink the area's history.

Hoke's discovery not only makes the plateau larger than previously thought, but also suggests that some of the topography is millions of years younger.

Our data provides the first direct documentation of the magnitude and geographic extent of elevation change on the southeast margin of the Tibetan Plateau, tens of millions years ago, Hoke added in an article in the journal Earth and Planetary Science Letters.


comments powered by Disqus
Read more on:
 INDIA (136901 views)
 NEW YORK (26931 views)
 TIBET (17204 views)
 SCIENTISTS (13481 views)
 PROFESSOR (9541 views)
 AGNI (6511 views)
 EASTER (6451 views)
 EARTH (5591 views)
 EVOLUTION (3031 views)
 RETHINK (2871 views)
 CONTROVERSY (2751 views)
 GLACIER (1111 views)
 GLACIERS (941 views)
 ST ELEVATION (275 views)
 NATURAL RESOURCES (21 views)
 

PERMALINK

http://www.nerve.in/news:2535002322424
You can quote the permanent link above for a direct link to the story. We do not archive or expire our news stories.


STORY OPTIONS
  Email this story to a friend
  XML feed for Americas


 
COPYRIGHTS INFORMATION
All rights reserved for news content. Reproduction, storage or redistribution of Nerve content and articles in any medium is strictly prohibited.
Contact Nerve Staff for any feedback, corrections and omissions in news stories.
 

All rights reserved for the news content. Reproduction, storage or redistribution of Nerve content and articles in any medium is strictly prohibited.