Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

From 0 to ERUPTION in 60 days: You thought that volcano was COLD?
theregister.co.uk ^ | 17th February 2014 | Brid-Aine Parnell,

Posted on 02/18/2014 6:09:02 PM PST by BenLurkin

New research on Mount Hood in Oregon suggests that volcanoes can come up with liquid hot magma in as little as a couple of months, but most of the time, they contain magma that has been kept cool for thousands of years.

"If the temperature of the rock is too cold, the magma is like peanut butter in a refrigerator," said Adam Ken, an Oregon State University (OSU) geologist.

"It just isn't very mobile. For Mount Hood, the threshold seems to be about 750 degrees C - if it warms up just 50 to 75 degrees above that, it greatly decreases the viscosity of the magma and makes it easier to mobilise."

The key is when much hotter magma from deep within the Earth's crust comes up to meet the jellied magma four or five kilometres below the surface. The mixing of hot and cold is what triggered the last two eruptions at Mount Hood 220 and 1,500 years ago.

...

"What is encouraging from another standpoint is that modern technology should be able to detect when magma is beginning to liquefy, or mobilise," Kent said, "and that may give us warning of a potential eruption. Monitoring gases, utilising seismic waves and studying ground deformation through GPS are a few of the techniques that could tell us that things are warming."

The full study, "Rapid remobilisation of magmatic crystals kept in cold storage", was published in Nature. ®

(Excerpt) Read more at theregister.co.uk ...


TOPICS: Science
KEYWORDS: mthood; oregon; volcano

1 posted on 02/18/2014 6:09:02 PM PST by BenLurkin
[ Post Reply | Private Reply | View Replies]

To: BenLurkin

New research? Was this confirmed by the 1980 Mount St. Helens eruption and Monserrat? When the warning signs are there and growing fast, its likely time to get your ass prepared for a quick departure with no warning.


2 posted on 02/18/2014 6:14:01 PM PST by lefty-lie-spy (Stay metal. For the Horde \m/("_")\m/ - via iPhone from Tokyo.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

Dang.

The chinook winds are a blowin in over Yellowstone.


3 posted on 02/18/2014 6:19:11 PM PST by bigheadfred
[ Post Reply | Private Reply | To 1 | View Replies]

To: bigheadfred

dern look like Schnooki blowed right on past Jellystone!


4 posted on 02/18/2014 6:23:45 PM PST by Fightin Whitey
[ Post Reply | Private Reply | To 3 | View Replies]

To: bigheadfred

dern blowed her right out of post #4!

5 posted on 02/18/2014 6:25:39 PM PST by Fightin Whitey
[ Post Reply | Private Reply | To 3 | View Replies]

To: BenLurkin

Could be man made global warming that done caused it. Yep the globe got warmer and the volcanoes erupted.


6 posted on 02/18/2014 6:25:54 PM PST by RetiredTexasVet (On a good day Slow Joe doesn't do anything incredibly stupid ... waiting for that first good day!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Fightin Whitey

i signed onto this forum and all i got was this jersey


7 posted on 02/18/2014 6:27:17 PM PST by bigheadfred
[ Post Reply | Private Reply | To 5 | View Replies]

To: BenLurkin

If Mt. Hood erupts, get ready for John F’n to go off on climate change again. What a doofus.


8 posted on 02/18/2014 6:35:44 PM PST by beethovenfan (If Islam is the solution, the "problem" must be freedom.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: bigheadfred
key is when much hotter magma from deep within comes up to meet the jellied magma

Try that line out at Elko next year.

9 posted on 02/18/2014 6:35:58 PM PST by Fightin Whitey
[ Post Reply | Private Reply | To 7 | View Replies]

To: RetiredTexasVet
Could be man made global warming that done caused it. Yep the globe got warmer and the volcanoes erupted.

I believe you may have stumbled on to something sir. This has got to be the cause of erupting volcanoes. No doubt about it. (not)

10 posted on 02/18/2014 6:36:36 PM PST by Mark17 (Chicago Blackhawks: Stanley Cup champions 2010, 2013. Vietnam Vet 70-71 Msgt US Air Force, retired)
[ Post Reply | Private Reply | To 6 | View Replies]

To: Fightin Whitey

no prob it worked good on the chicks from slc in windover


11 posted on 02/18/2014 6:40:32 PM PST by bigheadfred
[ Post Reply | Private Reply | To 9 | View Replies]

To: Mark17

Millions of degrees, every year.


12 posted on 02/18/2014 6:42:22 PM PST by Cyber Liberty (H.L. Mencken: "The urge to save humanity is almost always a false front for the urge to rule.")
[ Post Reply | Private Reply | To 10 | View Replies]

To: Salvation

Oregon ping


13 posted on 02/18/2014 7:10:22 PM PST by goodnesswins (R.I.P. Doherty, Smith, Stevens, Woods.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Fightin Whitey; bigheadfred

dern blowed her right out of post #4!


14 posted on 02/18/2014 7:32:49 PM PST by mountn man (The Pleasure You Get From Life Is Equal To The Attitude You Put Into It)
[ Post Reply | Private Reply | To 5 | View Replies]

To: mountn man; Fightin Whitey

this is an episode from dreams of my father?


15 posted on 02/18/2014 7:34:41 PM PST by bigheadfred
[ Post Reply | Private Reply | To 14 | View Replies]

To: lefty-lie-spy

Yes, for the region the rapid awakening of St. Helens con be well explained by this. The Pacific Northwest is full of potential. 80 miles to the east of us is Crater Lake and north of that The Three Sisters, Mt Hood, Mt Adams and dozens of lesser known volcanos. To the South there are Mt. Shasta and Mt. Lassen. The most strikingly beautiful volcano and the most dangerous is Mt Ranier. Fun times in store for all.


16 posted on 02/18/2014 8:11:26 PM PST by JimSEA
[ Post Reply | Private Reply | To 2 | View Replies]

To: lefty-lie-spy
Mt Hood is not the big threat in the NW.

It's Mt Rainier, an ACTIVE Volcano of 14,400ft.

It's covered by 36 sq miles of glaciers.

150,000 people live on it's most recent medflows/lahars.

If it were to blow like St Helens it would take out 6-8 good sized towns and easily kill 300,000 people. Most would drown in the cubic mile of water it would shed.

17 posted on 02/18/2014 8:18:35 PM PST by Mariner (War Criminal #18)
[ Post Reply | Private Reply | To 2 | View Replies]

To: mountn man

I can’t look at a picture of Dern without thinking of a career stifled by the cold blooded murder of Will Anderson.


18 posted on 02/18/2014 8:25:16 PM PST by Rebelbase (Tagline: optional, printed after your name on post)
[ Post Reply | Private Reply | To 14 | View Replies]

To: Mariner

Rainier is dangerous given the issues you’ve mentioned, but Glacier Peak is probably the most threatening; it has a tendency to develop lava domes on its flanks and these not only have the capacity to lead to large lahars, slides coming off it have dammed the Sauk, Stillaguamish and Skagit and altered their courses. The debris flow that that makes up the Skagit flats and the Mt Vernon, Burlington, Sedro Wooley area was from a single event and represents 10 cubic miles of mud. At 10,500 it’s big, but because of its location it really can’t be seen and is basically ignored. But despite the fact that it has been one of the most active Cascade volcanoes, it has the least amount of monitoring.


19 posted on 02/18/2014 10:33:13 PM PST by stormer
[ Post Reply | Private Reply | To 17 | View Replies]

To: JimSEA

If you really want to sweat a geologic hazard, just imagine the M9 when the Cascadia Subduction Zone unzips from Vancouver Island all the way to the California border. Going to be pretty nasty.


20 posted on 02/18/2014 10:38:07 PM PST by stormer
[ Post Reply | Private Reply | To 16 | View Replies]

To: BenLurkin; goodnesswins; PROCON; Twotone; VeryFRank; Clinging Bitterly; Rio; aimhigh; Hieronymus

If you would like more information about Oregon, please FReepmail me. I lost my Oregon list when my computer crashed recently.

21 posted on 02/19/2014 8:20:04 AM PST by Salvation ("With God all things are possible." Matthew 19:26)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Rebelbase

Good Point! He got a lot of hate mail for it too.


22 posted on 02/19/2014 8:26:09 AM PST by Conan the Librarian (The Best in Life is to crush my enemies, see them driven before me, and the Dewey Decimal System)
[ Post Reply | Private Reply | To 18 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson