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Latest Magma Stories

Lava Formations In Western US Linked To Tear In Giant Slab Of Earth
2012-02-17 04:04:00

Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region Like a stream of air shooting out of an airplane's broken window to relieve cabin pressure, scientists at Scripps Institution of Oceanography at UC San Diego say lava formations in eastern Oregon are the result of an outpouring of magma forced out of a breach in a massive slab of Earth. Their new mechanism explaining how such a large volume of magma was generated is published in the Feb....

High-Pressure Phase Changes Could Play Role In Exoplanet Formation
2012-02-12 05:37:38

Phase transitions in liquid magmas at the pressure and temperature levels that exist deep within Earth-like planets could play a role in the formation of new worlds, according to a new research put forth by experts at California's Lawrence Livermore National Laboratory (LLNL). According to a Friday UPI article, the process is similar to the way that graphite, when placed in high-pressure conditions, can transform into diamonds. In much the same way, the LLNL researchers assert that molten...

Studies Suggest Volcanic Eruptions Can Be Predicted
2012-02-03 06:01:44

New research suggests that eruptions at some of Earth's largest volcanoes could be predicted decades before the event actually occurs, potentially making it easier for experts to monitor danger zones and conduct pre-emptive evacuations to keep residents out of harm's way. In one study, published Thursday in the journal Nature, scientists investigate "caldera-forming volcanic eruptions," or eruptions that discharge such massive amount of magma that it can create a large depression in the...

Death Valley Crater May Have Future Big Bang Potential
2012-01-24 10:22:17

In California's Death Valley, death is looking just a bit closer. Geologists have determined that the half-mile-wide Ubehebe Crater, formed by a prehistoric volcanic explosion, was created far more recently than previously thought–and that conditions for a sequel may exist today. Up to now, geologists were vague on the age of the 600-foot deep crater, which formed when a rising plume of magma hit a pocket of underground water, creating an explosion. The most common estimate was about...

2012-01-23 14:03:33

How diamond-bearing kimberlites reach the surface Kimberlites are magmatic rocks that form deep in the Earth´s interior and are brought to the surface by volcanic eruptions. On their turbulent journey upwards magmas assimilate other types of minerals, collectively referred to as xenoliths (Greek for “foreign rocks”). The xenoliths found in kimberlite include diamonds, and the vast majority of the diamonds mined in the world today is found in kimberlite ores. Exactly how...

Scientists Find Possible Trigger For Volcanic 'Super-eruptions'
2011-10-13 03:35:17

The "super-eruption" of a major volcanic system occurs about every 100,000 years and is considered one of the most catastrophic natural events on Earth, yet scientists have long been unsure about what triggers these violent explosions. However, a new model presented this week by researchers at Oregon State University points to a combination of temperature influence and the geometrical configuration of the magma chamber as a potential cause for these super-eruptions. Results of the...

2011-07-15 00:00:37

Magma, an innovative and visionary developer of PCI Express expansion and connectivity products, announced plans to support the all-new Thunderboltâ“ž¢ technology, developed by Intel® and brought to market in collaboration with Apple®. Magma's Thunderbolt expansion offerings will provide a migration path to Thunderbolt, while protecting customers' investment in specialized PCI and PCI Express option cards made for video capture and edit, broadcast video,...

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2011-05-26 14:45:00

A team of NASA-funded researchers has measured water from the moon that shows some parts of the lunar mantle have as much water as the Earth's upper mantle. The research, from Case Western Reserve University, Carnegie Institution for Science, and Brown University, shows 100 times more water than measured before. Scientists discovered water along with volatile elements in lunar magma trapped inside of crystals that are themselves trapped inside tiny volcanic glass beads. The team of...


Latest Magma Reference Libraries

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2005-05-25 18:34:42

Scoria is a term used by geologists to describe an igneous rock containing many gas bubbles, or vesicules. Scoria forms when magma rich in dissolved gases is vented. As the magma encounters lower pressures, the gasses are able to escape and form bubbles. These bubbles are trapped when the magma cools and solidifies. Volcanic cones of scoria can be left behind after eruptions, usually forming mountains with a crater at the summit. An example is Mount Wellington, Auckland in New Zealand....

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Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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