magma

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magma

[mag´mah]

1. a thick, viscous, aqueous suspension of finely divided, insoluble, inorganic material.

2. a thin, pastelike substance composed of organic material.

mag·ma

(mag'mă),

1. A soft mass left after extraction of the active principles.

2. A salve or thick paste.

[G. a soft mass or salve, fr. massō, to knead]

Farlex Partner Medical Dictionary © Farlex 2012

magma

(măg′mə)

n. pl. mag·mata (-mä′tə) or mag·mas

Pharmacology A suspension of particles in a liquid, such as milk of magnesia.

mag·mat′ic (-măt′ĭk) adj.

mag·ma

(mag'mă)

1. A soft mass left after extraction of the active principles.

2. A salve or thick paste.

[G. a soft mass or salve, fr. massō, to knead]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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References in periodicals archive ?

Release date- 26082019 - The origin of gigantic magma eruptions that led to global climatic crises and extinctions of species has remained controversial.

UNIVERSITY OF HELSINKI: First direct evidence for a mantle plume origin of Jurassic flood basalts in southern Africa

Instead, the study suggests that volcanoes are fed by so-called 'mush reservoirs' -- areas of mostly solid crystals with magma in the small spaces between the crystals.

Volcanoes Fed by 'Mush' Reservoirs

Amazingly, the brains behind the breakthrough claim volcanoes are telling their own stories as their secrets are locked inside magma crystals.

MAGMANIFICENT; Irish scientists in breakthrough to help predict volcanic eruptions

(2013) Primary magmas at the volcanic front of the NE Japan arc: coeval eruption of crustal low-K tholeiitic and mantle-derived medium-K calc-alkaline basalts at Azuma Volcano.

Cause and risk of catastrophic eruptions in the Japanese Archipelago

The key, scientists say, is to elevate the temperature of the rock to more than 750 degrees Celsius, which can happen when hot magma from deep within the Earth's crust rises to the surface.

Dormant volcanoes can become active quickly

This book is a collection of 12 papers that address four important issues in magma evolution: magma transfer from mantle to surface, dynamics of magma transport, magma reservoir dynamics and processes of silicic melt generation.

Dynamics of Crustal Magma Transfer, Storage and Differentiation

The low viscosity of the basaltic magmas released in Hawaiian-style eruptions on these volcanoes (Fig.

Planetary Volcanism

"Pervasive" migration is the motion of magma through an extensive network of channels.

Pervasive migration of magma through the crust. (Geological Association of Canada 2000 Annual Technical Meeting Newfoundland Section)

As magmas cool, crystals may accumulate on the floors, walls, and roofs of magma chambers and form crystal mushes that initially contain 40 percent melt, but prior to solidification contain less than 15 percent trapped melt.

Oceanic crust composition and structure

When mantle material melts to form magma, it traps subsurface carbon.

Mars may have been warm enough to support liquid water

Shergotty contains certain crystals that could only have formed if the magma that makes up the rock was 2 percent water by weight.

Ancient Mars water: a deep source?

In the Earth, such bodies of magma tend to move towards the surface leading to volcanic eruptions.