Geologists to discuss historic ice core

Apr 26, 2007

An Antarctic core with unprecedented geological detail of the Ross Ice Shelf will be featured during a U.S. international geology meeting.

Geologists, students and educators from Germany, Italy, New Zealand and the United States will meet at Marine Geology Research Facility at Florida State University next Tuesday through Friday. The facility is the U.S. repository for geological material from the Southern Ocean.

The core was extracted during the recent Antarctic summer from a record 4,214 feet below the sea floor beneath Antarctica's Ross Ice Shelf, the Earth's largest floating ice body. Laced with sediment dating to about 10 million years, the core suggests the Ross Ice Shelf retreated and advanced perhaps as many as 50 times during the last 5 million years in response to climate changes, said facility curator Matthew Olney.

He said such signs of fluctuations are critical since the Ross Sea ice is a floating extension of the even bigger West Antarctic Ice Sheet -- an area so unstable scientists foresee its collapse from global warming. Such a collapse could raise sea levels worldwide by a catastrophic 20 feet.

The core was featured in the March edition of the journal Nature.

Copyright 2007 by United Press International

Explore further: Did Kathmandu shift? Questions and Answers

Related Stories

Cheap content, growing reach make Snapchat a fast-rising star

1 hour ago

Thousands of revelers descended on the Coachella music festival this month to rock out to their favorite bands and party day and night. But a far bigger audience from around the world - at least 40 million - joined in remotely ...

Google prepares for long battle in EU antitrust case

2 hours ago

Google Inc. probably faces a lengthy process in challenging antitrust charges by the European Union, but the Internet search giant might be able to avoid paying hefty fines or making big changes to its business.

Comcast expands 2-gigabit Internet service

2 hours ago

–In the race for speed, Comcast soon will offer the fastest residential Internet speed in the country to its 1.3 million residential customers in South Florida.

Recommended for you

Did Kathmandu shift? Questions and Answers

41 minutes ago

The tremor which struck Nepal on Saturday, killing more than 3,500 people, may have caused a land area around the capital Kathmandu to budge by several metres, experts say.

More than 2,200 confirmed dead in Nepal earthquake

Apr 26, 2015

A powerful aftershock shook Nepal on Sunday, making buildings sway and sending panicked Kathmandu residents running into the streets a day after a massive earthquake left more than 2,200 people dead.

Nepal quake: Nearly 1,400 dead, Everest shaken (Update)

Apr 25, 2015

Tens of thousands of people were spending the night in the open under a chilly and thunderous sky after a powerful earthquake devastated Nepal on Saturday, killing nearly 1,400, collapsing modern houses and ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.