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Alan Johnson
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 Posted: Fri Jul 25, 2008 5:20 pm Post subject: Northernmost hydrothermal vent field found |
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A team led by Rolf Pedersen of the University of Bergen (Norway) has
discovered the world>s northernmost hydrothermal vent field. The black
smokers are situated at 73° north on the Mid-Atlantic Ridge between
Greenland and Norway, more than 220 kilometres from the previous
northernmost vents found during a 2005 expedition, also led by Pedersen.
Other scientists have detected plumes of water from hydrothermal vents
even farther north but have been unable to find the vent fields on the
sea floor to image and sample them. The cluster of five vents discharge
water as hot as approx. 300°C.
Read the complete story here: http://uwnews.org/article.asp?articleID=42993
--
Alan Johnson, Geotr@ns
www.geotrans-online.de
German-English, Geosciences/Technical
http://geotransblog.blogspot.com/
Terminus Est |
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Gautam Majumdar
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| Posted: Fri Jul 25, 2008 11:13 pm Post subject: Re: Northernmost hydrothermal vent field found |
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Alan Johnson wrote:
[quote]A team led by Rolf Pedersen of the University of Bergen (Norway) has
discovered the world>s northernmost hydrothermal vent field. The black
smokers are situated at 73° north on the Mid-Atlantic Ridge between
Greenland and Norway, more than 220 kilometres from the previous
northernmost vents found during a 2005 expedition, also led by Pedersen.
Other scientists have detected plumes of water from hydrothermal vents
even farther north but have been unable to find the vent fields on the
sea floor to image and sample them. The cluster of five vents discharge
water as hot as approx. 300°C.
Read the complete story here:
http://uwnews.org/article.asp?articleID=42993
[/quote]
Interesting findings Alan. I wonder whether there could be some hydrothermal
vents along the Gakken ridge under the arctic ice where active volcanoes
were found in 2001.
--
gautam |
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Alan Johnson
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| Posted: Sun Jul 27, 2008 12:46 pm Post subject: Re: Northernmost hydrothermal vent field found |
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Gautam Majumdar wrote:
[quote]Alan Johnson wrote:
A team led by Rolf Pedersen of the University of Bergen (Norway) has
discovered the world>s northernmost hydrothermal vent field. The black
smokers are situated at 73° north on the Mid-Atlantic Ridge between
Greenland and Norway, more than 220 kilometres from the previous
northernmost vents found during a 2005 expedition, also led by Pedersen.
Other scientists have detected plumes of water from hydrothermal vents
even farther north but have been unable to find the vent fields on the
sea floor to image and sample them. The cluster of five vents discharge
water as hot as approx. 300°C.
Read the complete story here:
http://uwnews.org/article.asp?articleID=42993
Interesting findings Alan. I wonder whether there could be some hydrothermal
vents along the Gakken ridge under the arctic ice where active volcanoes
were found in 2001.
[/quote]
Hi Gautam,
I>m afraid I can>t answer that, apart from "I wouldn>t be surprised".
I tried to find some info, but there is very little to be had at all on
the Gakken Ridge (that I could find).
Regards
--
Alan Johnson, Geotr@ns
www.geotrans-online.de
German-English, Geosciences/Technical
http://geotransblog.blogspot.com/
Terminus Est |
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Daryl Krupa
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| Posted: Mon Jul 28, 2008 11:52 pm Post subject: Re: Northernmost hydrothermal vent field found |
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On Jul 27, 1:46 am, Alan Johnson <afjohn...@geotrans-online.de> wrote:
<snip>
[quote]I tried to find some info, but there is very little to be had at all on
the Gakken Ridge (that I could find).
[/quote]
Alan Johnson:
Try
"Gakkel Ridge":
http://epic.awi.de/Publications/Mic2003d.pdf
http://en.wikipedia.org/wiki/Gakkel_Ridge
- Daryl Krupa |
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Alan Johnson
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| Posted: Tue Jul 29, 2008 12:41 pm Post subject: Re: Northernmost hydrothermal vent field found |
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Daryl Krupa wrote:
[quote]On Jul 27, 1:46 am, Alan Johnson <afjohn...@geotrans-online.de> wrote:
snip
I tried to find some info, but there is very little to be had at all on
the Gakken Ridge (that I could find).
Alan Johnson:
Try
"Gakkel Ridge":
http://epic.awi.de/Publications/Mic2003d.pdf
http://en.wikipedia.org/wiki/Gakkel_Ridge
- Daryl Krupa
[/quote]
Great, thanks Daryl. I>ll read them asp.
Regards
--
Alan Johnson, Geotr@ns
www.geotrans-online.de
German-English, Geosciences/Technical
http://geotransblog.blogspot.com/
Terminus Est |
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Alan Johnson
Guest
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| Posted: Wed Jul 30, 2008 1:20 am Post subject: Re: Northernmost hydrothermal vent field found |
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Gautam Majumdar wrote:
[quote]Interesting findings Alan. I wonder whether there could be some hydrothermal
vents along the Gakken ridge under the arctic ice where active volcanoes
were found in 2001.
[/quote]
Gautam, I suggest you also read the references posted by Daryl.
Regards
--
Alan Johnson, Geotr@ns
www.geotrans-online.de
German-English, Geosciences/Technical
http://geotransblog.blogspot.com/
Terminus Est |
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Gautam Majumdar
Guest
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| Posted: Wed Jul 30, 2008 7:04 am Post subject: Re: Northernmost hydrothermal vent field found |
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Alan Johnson wrote:
[quote]Gautam Majumdar wrote:
Interesting findings Alan. I wonder whether there could be some
hydrothermal vents along the Gakken ridge under the arctic ice where
active volcanoes were found in 2001.
Gautam, I suggest you also read the references posted by Daryl.
[/quote]
Thanks Alan. I read the Nature article when it was published and refreshed
myself now. Also checked the Wikipedia article. A good short one.
Results of further exploration in 2007. No hydrothermal vent though.
http://www.nature.com/nature/journal/v453/n7199/abs/nature07075.html
http://my.opera.com/nielsol/blog/2008/06/26/gakkel-ridge-revisited
Here are some other articles
http://www.ingentaconnect.com/content/bsc/gji/2007/00000169/00000001/art00009
http://www.agu.org/pubs/crossref/2003/2002JB001830.shtml
http://www.geosociety.org/news/pr/01-64.htm
--
gautam |
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