sail-world.com
 
 
News Home Cruising Photo Gallery Video Gallery

 

Sail-World.com : Journey to the centre of the Earth begins at sea

Journey to the centre of the Earth begins at sea

'Earth showing Mantle'    . ©    Click Here to view large photo

A pair of scientists are about to embark on a world-first mission to find out what's under the Earth's crust. Dr Damon Teagle, a geologist at the National Oceanography Centre at the University of Southampton, and Dr Benoit Ildefonse from Montpellier University in France, are leading a team which will aim to drill through more than eight kilometres of solid rock in the Pacific Ocean.

The aim of the mission is to retrieve samples of the boundary between the ocean crust and the mantle, known as the 'Mohorovicic' or 'Moho' for short. The start of this massive drilling will be made under the ocean off the coast of Costa Rica, and scientists hope to return never-before-taken samples from Earth's mantle.

It's not the first time drilling to the Earth’s mantle has been attempted - a team of American scientists attempted it in the 1960s - but Dr Teagle and Dr Benoit hope to be the first to manually extract samples - samples the experts say will rival moon rocks for importance and scarcity.

The drilling is expected to commence in 2020 off the western coast of Costa Rica in Central America, but preparatory exploration in the Pacific Ocean begins later in 2011. A Japanese ship equipped with six miles (ten kilometres) of drilling pipe will be used for the project.

At this location, in the middle of the ocean, the crust (the outermost solid shell of Earth) is thinner than elsewhere. In fact, it is only approximately 2.5 miles (4.0 kilometers) thick. Under the surface of the Earth is the crust, mantle, and core.

Dr Teagle says the value of knowledge about mantle rocks would 'provide insight into how current mantle processes operate—highly important in understanding the plate tectonics that drive many earthquakes, tsunamis, and eruptions'.

The 1960s project called 'Mole Hole', or in Russian 'Mohorovicic,' or 'Moho' for short, was conducted by Scientists from the former Soviet Union. When drilling stopped in 1994, the hole was over seven miles deep (12,262 meters), making it by far the deepest hole ever drilled by humankind. Many of the samples plucked from the borehole were dated at 2.7 billion years old.

Says Dr Teagle: 'All of the rocks from the crust at one stage were produced by partially melting the mantle. So, actually, it's the most important chemical reservoir of our planet. So if we really want to understand how our Earth has evolved over its history since its formation, then we need to have a very precise view of the chemical composition of the mantle.'




by Jeni Bone

  

Click on the FB Like link to post this story to your FB wall

http://www.sail-world.com/index.cfm?nid=82005

3:08 AM Sun 3 Apr 2011 GMT






Click here for printer friendly version
Click here to send us feedback or comments about this story.


News - USA and the World







Audi Melges 20 World Championship - Final race to decide champion by International Audi Melges 20 Class Association,








Fort Lauderdale International Boat Show - 13 things to See and do by Fort Lauderdale International Boat Show,




Volvo Ocean Race: Update from Team Vestas Wind in images by Richard Gladwell/Sail-World.com/nz,








Audi Melges 20 World Championship - Classic Garda conditions on day 2 by International Audi Melges 20 Class Association,
























Audi Melges 20 World Championship - Alessandro Rombelli's 'STIG' leads by International Audi Melges 20 Class Association,
















Transatlantic Race - Fleet expanded for 2015 edition
IFDS World Championship overall
Anna Tunnicliffe: Alinghi finishes second - Extreme Sailing Series
2014 18' Skiff International Regatta - Day 2
2014 Audi Melges 20 World Championship - It's go time in Garda
2nd Annual Keith Dinsmoor Regatta September 13-14
Aldo Alessio Regatta - Three days of tight racing
PWA Alacati World Cup - First blood to Van Der Steen and Offringa
Oakcliff Sailing hosts the Nacra 17, 49er and 49erFX Nationals + Video
International 18ft Skiff Regatta underway on San Francisco Bay
Maxi Yacht Rolex Cup 2014 - Quality fleet for Maxi Classic
Sailing Champions League - which is Europe's best sailing club?
Weta fun at the Wine & Roses Regatta
Extreme Sailing Series: The Wave, Muscat claims victory on Cardiff Bay
International 14 World Championships 2015: Not just for boys
Rio de Janeiro achieves 50% treatment of sewage outflow *Feature
2014 AWT Quatro Desert Showdown - Event memorable videos
2014 18' Skiff Int Regatta: Day 1 at San Francisco - Reversal on beach
Emirates Team NZ: Last race boost cannot save team from table bottom
PWA Alacati World Cup - Furious slalom is upon us
J/111 World Championships - The Winner is Shmokin Joe!   
J/24 US National Championship - Victory for Will Welles’ Cougar   
Extreme Sailing Series: View the Final Day's action - Replay   
NYYC Grandmasters Team Race - Reign continues for Noroton Yacht Club   
WSSR announces new World Record Around Britain and Ireland   
IFDS Worlds 2014 - Final day photos by Tim Wilkes   
2014 Detroit Cup - Morvan wins   
Newport Bucket Regatta 2014 -Images by George Bekris   
IFDS Worlds 2014 - Final report: USA qualifies for Rio 2016   
Extreme Sailing Series: Absent With-Out Leave – Ben Ainslie Racing   
2014 IFDS World Championship - New champions claim medals   
2014 IFDS World Championships - Sunday’s race images by Tim Wilkes   
Shark World Championships underway in Toronto   
Anna Tunnicliffe: Alinghi second o'all - Extreme Sailing Series, Day 3   
Formula Kite World Championships - Nocher and Bridge crowned Champions   
Emirates Team NZ: Frustrating Day 3 in Extreme Sailing Series, Cardiff   
Extreme Sailing Series: Light winds help The Wave Muscat - Day 3   
Extreme Sailing Series 2014 Act five - Absent without leave – the wind   
IFDS Worlds 2014 - Images: Race day five   
Herreshoff Classic Regatta 2014 - Images by Ingrid Abery   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png http://www.sail-world.com/event_images/image/FaceBook-icon.png  http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph contact the photographer directly.
XLXL WAS US
LocalAds   DE  ES  FR  IT