Magma ocean found in Jupiter's volcanic moon
DR EMILY BALDWIN
ASTRONOMY NOW
Posted: 13 May 2011 ...
MAGMA OCEAN - Completely molten surfaces of terrestrial planets that formed soon accretion.
Magma is molten Rock that is found beneath the surface of the Earth, and may also exist on other terrestrial planets. Besides molten rock, magma may also contain suspended crystals and gas bubbles....
) through other rock types, ...
Magma: Term applied to molten rock in the interior of a planet or moon. When it reaches the surface, magma is called lava.
Magma
very hot, fluid rock. Magma is used to describe molten rock both below and on top of the surface of a planet and thus is a more general term than lava. Magma may contain solid mineral crystals which are suspended in the melt.
Magma - Molten rock within a planet or satellite
Magnetopause - The outer boundary of the magnetosphere of planet ...
Lunar magma ocean
As a result of the large amount of energy liberated during both the giant impact event and the subsequent reaccretion of material in Earth orbit, it is commonly believed that a large portion of the Moon was once initially molten.
Making Magma Flow
Volcanoes have been discovered on several bodies in the Solar System. And while there are variations on Earthly magma volcanoes, the ones we see here are probably representative of most of those we see on other worlds.
MAGMA
Magma is molten rock (lava) from which igneous rock forms.
A magnetar is a highly magnetic star. Magnetar have magnetic fields of about 1015 Gauss, about a thousand trillion times stronger than the .
magma -- Molten rock material (liquids and gases).
magnetosphere -- a region of a planet's atmosphere that is dominated by the planet's magnetic field so that charged particles are trapped in it.
If magmas cool rapidly, as might be expected near or on the Earth's surface, they solidify to form igneous rocks that are finely crystalline or glassy with few crystals.
Some erupted magmas contain ultramafic lava. Ultramafic flows, also known as komatiites, are very rare; indeed, very few have been erupted at the Earth's surface since the Proterozoic, when the planet's heat flow was higher.
magma (Photoglossary of Volcanic Terms - USGS) Magma is molten or partially molten rock beneath the Earth's surface. When magma erupts onto the surface, it is called lava.
Jupiter moon 'holds magma ocean' BBC - May 12, 2011
Io is the most volcanic world in the Solar System and scientists think they now have a better idea of why that is.
* There is no evidence that the Earth ever had a magma ocean (an implied result of the giant impact hypothesis) [4] ...
This in turn depends on the composition of the magma arriving at the surface. The lower the viscosity, the more readily the lava flows away from the throat or fissure.
It is believed that most basaltic magmas are generated near the base of the upper mantle at a depth of about 400 kilometres. The upper mantle, which is rich in the greenish mineral olivine, shows significant lateral inhomogeneities.
Gelatin Volcanoes (PDF, 160 KB): Participants develop an awareness of how magma moves inside volcanoes, what dikes look like underground, and why Hawaiian volcanoes have rift zones by watching as red food coloring is injected into gelatin.
igneous rock formed from magma. In the highlands the majority of the rocks are breccias—conglomerates formed from basaltic rock and often studded with small, green, glassy spheres.
Explosive volcanic eruptions occur when magma rising from below has much dissolved gas in it; the reduction of pressure as the magma rises causes the gas to bubble out of solution, resulting in a rapid increase in volume.
Vesta is a dry body that has been resurfaced by basaltic lava flows, and may have an early magma ocean like Earth's Moon.
rock formed by the solidification of magma
inclination
the angle between a planet's orbit and the ecliptic plane; or the angle between a satellite's orbit and its host planet's rotational plane ...
4. Mars' surface is mostly water, rock, or magma? ____________________
5. Are there polar ice caps on Mars? _____________________
6. Does Mars have any rings orbiting it? _______________________ ...
Volcanic craters usually crown conical volcanoes and form the opening of the volcanic vent, where lava pools when magma is rising to the surface.
So, the Moon's crust (outer layer) is thinner on the near side than on the far side. That means the magma (molten rock underground, before it erupts as lava) was more likely to make it to the surface and produce lava flows on the near side than on ...
These are quite different from the volcanoes on the Earth. Instead of red-hot magma being ejected it is nitrogen gas, ...
As she grew older, Petach asked harder questions: Why is this leaf green and that one purple? How does the magma below tectonic plates change as they crash together? But still, there were answers.
Spreading occurs when two plates move away from each other and new crust is created by upwelling magma from below. Subduction occurs when two plates collide and the edge of one dives beneath the other and ends up being destroyed in the mantle.
I am in third grade. I would like to know what the core of the moon is like. Is it magma like the Earth?
The Answer ...
Under the modern the theory of plate tectonics, some plates move away from each other and new crust is created by upwelling magma from below in a process called "spreading.
Another theory about why the surface of Venus is largely unscarred is that around 800 million years ago volcanic activity engulfed the entire surface of the planet in magma, thus melting away any discernable impact craters.
 See also: Earth, Planet, Temperature, Time, Solar
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