Saturday, July 16, 2011

Re: [Geology2] Re: Volcano Activity - Iceland



Hi Kimberley, I hope you enjoy being a part of this group.

Regards,

Mark.
 

--- On Sat, 16/7/11, iowamom_1967 <no_reply@yahoogroups.com> wrote:

From: iowamom_1967 <no_reply@yahoogroups.com>
Subject: [Geology2] Re: Volcano Activity - Iceland
To: geology2@yahoogroups.com
Date: Saturday, 16 July, 2011, 19:59

 

Thank you Lin for the kind welcome!

That is what I thought it would get bigger but wanted to ask both questions due to was not 100% sure .

Thanks for the article in wikki ..

Kimberly

--- In geology2@yahoogroups.com, Lin Kerns <linkerns@...> wrote:
>
> Greetings Kimberly and welcome to our Geo Group,
>
> Iceland sits on an ocean spreading zone called the Mid Atlantic Ridge.
> Here's a link so that you can read more about it:
>
> http://en.wikipedia.org/wiki/Mid-Atlantic_Ridge
>
> As you can see, Iceland is near the northern end of the ridge and with the
> outflow of magma creating new land, Iceland should become larger thanks to
> this process.
>
> Lin
>
> On Sat, Jul 16, 2011 at 1:25 PM, iowamom_1967 <no_reply@yahoogroups.com>wrote:
>
> > **
> >
> >
> > With all this going on over in Iceland does that mean the country could be
> > no more someday? or possibly growing bigger not sure.. I remember the last
> > volcanic eruption over there when people could not get on any planes for
> > weeks..
> >
> > Kimberly
> >
> > --- In geology2@yahoogroups.com, Victor Healey <4.vic.healey@> wrote:
> > >
> > > BOTTOM LINE: More to come - clear increase in activity in Iceland
> > >
> > > Volcano Activity - Europe - Iceland
> > >
> > > RSOE EDIS - Emergency and Disaster Information 7/15/11 8:11 AM
> > >
> > >
> > > Description:
> > >
> > > Geophysicist Helgi Björnsson said a magma intrusion caused the glacial
> > flood from Köldukvíslarjökull, a part of Vatnajökull in southeast Iceland,
> > on Tuesday night. It is possible that a minor eruption occurred underneath
> > the icecap. The Köldukvíslarjökull flood originated in a previously unknown
> > high-temperature geothermal area in the western part of Vatnajökull.
> > Björnsson explained that the magma intrusion occurred near the bottom of the
> > glacier, possibly extending into the ice, and thus furthering glacial melt.
> > >
> > > He reasoned that it is possible that a minor sub-glacial volcanic
> > eruption occurred, even though it didn't penetrate the icecap, which is 300
> > meters thick in this area.
> > >
> > > Björnsson added it is fairly likely that further seismic activity will
> > occur in the area in the near future—the glacial flood was preceded by
> > tremors—and therefore it should be monitored closely. Earth scientists say
> > both recent glacial floods, from Mýrdalsjökull and Vatnajökull, can be
> > explained by volcanic activity and therefore a close eye must be kept on the
> > volcanoes that lie underneath these glaciers, even though there are no
> > indications of imminent eruptions.
> > >
> > > Not even two months have passed since the volcanic eruption in
> > Vatnajökull's Grímsvötn and only one year ago the infamous Eyjafjallajökull
> > erupted.
> > >
> > > Geologist Oddur Sigurdsson at the Icelandic Meteorological Office noted
> > there has clearly been an increase in volcanic eruptions in Iceland since
> > the mid-20th century.
> > >
> >
> >
> >
>
>
>
> --
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>
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>
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>
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>



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