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March 27, 2024, 12:55:24 pm Mark says: Shocked Shocked Shocked Shocked  When Hamas spokesman Abu Ubaida began a speech marking the 100th day of the war in Gaza, one confounding yet eye-opening proclamation escaped the headlines. Listing the motives for the Palestinian militant group's Oct. 7 massacre in Israel, he accused Jews of "bringing red cows" to the Holy Land.
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January 29, 2018, 01:21:57 am Christian40 says: It will be interesting to see what happens this year Israel being 70 years as a modern nation may 14 2018
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October 16, 2017, 03:28:18 am Christian40 says: anyone else thinking that time is accelerating now? it seems im doing days in shorter time now is time being affected in some way?
September 24, 2017, 10:45:16 pm Psalm 51:17 says: The specific rule pertaining to the national anthem is found on pages A62-63 of the league rulebook. It states: “The National Anthem must be played prior to every NFL game, and all players must be on the sideline for the National Anthem. “During the National Anthem, players on the field and bench area should stand at attention, face the flag, hold helmets in their left hand, and refrain from talking. The home team should ensure that the American flag is in good condition. It should be pointed out to players and coaches that we continue to be judged by the public in this area of respect for the flag and our country. Failure to be on the field by the start of the National Anthem may result in discipline, such as fines, suspensions, and/or the forfeiture of draft choice(s) for violations of the above, including first offenses.”
September 20, 2017, 04:32:32 am Christian40 says: "The most popular Hepatitis B vaccine is nothing short of a witch’s brew including aluminum, formaldehyde, yeast, amino acids, and soy. Aluminum is a known neurotoxin that destroys cellular metabolism and function. Hundreds of studies link to the ravaging effects of aluminum. The other proteins and formaldehyde serve to activate the immune system and open up the blood-brain barrier. This is NOT a good thing."
http://www.naturalnews.com/2017-08-11-new-fda-approved-hepatitis-b-vaccine-found-to-increase-heart-attack-risk-by-700.html
September 19, 2017, 03:59:21 am Christian40 says: bbc international did a video about there street preaching they are good witnesses
September 14, 2017, 08:06:04 am Psalm 51:17 says: bro Mark Hunter on YT has some good, edifying stuff too.
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Author Topic: Active Volcanos  (Read 24230 times)
Psalm 51:17
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« Reply #270 on: February 18, 2014, 09:41:43 pm »

http://www.theregister.co.uk/2014/02/17/volcanos_can_erupt_quickly/
From 0 to ERUPTION in 60 days: You thought that volcano was COLD?

Liquid hot MAG...MMMMA


By  Brid-Aine Parnell,  17th February 2014

Volcanoes can become ready to blow in less time than scientists had previously thought, but their magma is usually kept in a cool, near-solid state.

Volcano erupting

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.

Mount Hood's eruptions aren't particularly violent, the magma tends to ooze instead of exploding, which is down to the different compositions of the two magmas, according to a previous OSU study.

"What happens when they mix is what happens when you squeeze a tube of toothpaste in the middle," said Kent. "A big glob kind of plops out the top, but in the case of Mount Hood, it doesn't blow the mountain to pieces."

The mobility of the magma depends on the amount of crystallisation - when it is more than 50 per cent crystalline, it's rendered immobile - which in turn depends on the temperature.

"People think about there being this big reservoir of liquid magma under a volcano, but we don't think it's in that state all the time," said Kari Cooper, associate professor in the Department of Earth and Planetary Sciences at UC Davis and lead author of the study.

Cooper and Kent figured out that Mount Hood's magma could be mobile as little as one per cent of the time, and definitely less than ten per cent, by studying the radioactive isotopes and distribution of trace elements in rocks ejected from previous eruptions.

The study could lead to better predictions by volcanologists, who can used seismic or other remote imaging techniques to look for whether the magma is liquid or semi-solid. The scientists plan to do further studies at other volcanoes to ensure the pattern repeats at other sites.

"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. ®
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