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SUPERMAN'S sparkling Fortress of Solitude they're not, but giant outcrops of crystals, found on the moon by India's Chandrayaan-1 probe, prove that a roiling ocean of magma once engulfed the rocky body of our satellite. The moon is thought to have coalesced more than 4 billion years ago from the molten debris of an impact between the Earth and a Mars-sized object. Models suggest that heat from that impact, as well as from material compressing to form the moon, created a sea of magma that lasted for a few hundred million years. Heavy, iron-bearing minerals should have sunk through this magma to form the moon's mantle, while lighter, iron-poor minerals called plagioclases should have crystallised and floated to the surface.
Originally posted by someguy420
Supposedly him and his wife both made the journey. They called the structure the fortress of cold. They both safely returned and accurately described conditions in space as well as on the moon. Amazing "myth" really
Originally posted by Occy Anonymous
SUPERMAN'S sparkling Fortress of Solitude they're not, but giant outcrops of crystals, found on the moon by India's Chandrayaan-1 probe, prove that a roiling ocean of magma once engulfed the rocky body of our satellite. The moon is thought to have coalesced more than 4 billion years ago from the molten debris of an impact between the Earth and a Mars-sized object. Models suggest that heat from that impact, as well as from material compressing to form the moon, created a sea of magma that lasted for a few hundred million years. Heavy, iron-bearing minerals should have sunk through this magma to form the moon's mantle, while lighter, iron-poor minerals called plagioclases should have crystallised and floated to the surface.
www.newscientist.com...
WOW, basically it says that a mountain at least 40 km wide made of crystal has been found on the moon. Not only that but it is apparently 95% pure, containing less then 5% of iron rich material.
Anyways, the first thing I thought of when I read this was a Chinese legend about man (Chang Kien I think) who went to the moon and built or found a giant crystal castle there, strangely enough the mountain was found in the Orientale Basin. I don't remember the story exactly so if anyone had anymore info on that, please drop a line.
But aside from that, this discovery means we'll have to rethink quite a lot of our lunar sciences and strengthen proof that the moon was once part of Earth.
Sorry if posted before and again feel free to move.
[edit on 12-1-2010 by Occy Anonymous]
[edit on 12-1-2010 by Occy Anonymous]
New Scientist
Heavy, iron-bearing minerals should have sunk through this magma to form the moon's mantle, while lighter, iron-poor minerals called plagioclases should have crystallised and floated to the surface.
...plagioclase would have reached the surface in a series of volcanic events. But finding widespread, pure plagioclase suggests a more global process.
Natrue Journal. Linked from original source.
The global distribution of pure anorthosite on the Moon.
It has been thought that the lunar highland crust was formed by the crystallization and floatation of plagioclase from a global magma ocean.
Wiki-
Lunar rocks are in large part made of the same common rock forming minerals as found on Earth, such as olivine, pyroxene, and plagioclase feldspar (anorthosite).
Wiki Image.
Labradorite frequently shows an iridescent display of colors due to light refracting within the lamellae of the crystal. It is named after Labrador, where it is a constituent of the intrusive igneous rock anorthosite which is composed almost entirely of plagioclase.