Sentences with phrase «magma ocean cooling»

Kevin Cannon and colleagues propose that a large proportion of Martian clays were formed when the primary crust reacted with a dense steam or supercritical atmosphere of water and carbon dioxide that was outgassed during magma ocean cooling.

Our samples formed after the magma oceans cooled and prove that these events were very early.»

Not exact matches

Most researchers accept what's called the magma ocean theory — that soon after its formation the moon was so hot that it was covered with a deep ocean of molten rock that cooled to form the surface we see today.

Since cooler mantle temperatures generally produce less magma, it's a trend that's making modern day ocean crust thinner.

The find is reminiscent of the solar system's earliest days, when most large, rocky bodies sported a magma ocean until they cooled down.

The hypothesized moonlet pushing a cooling magma ocean and its KREEP to the lunar near side would explain the dichotomy.

There's also a number of interesting applications in the evolution of Earth's atmosphere that branch off from the runaway greenhouse physics, for example how fast a magma - ocean covered early Earth ends up cooling — you can't lose heat to space of more than about 310 W / m2 or so for an Earth - sized planet with an efficient water vapor feedback, so it takes much longer for an atmosphere - cloaked Earth to cool off from impact events than a body just radiating at sigmaT ^ 4.

As it continuously spreads, an unknown amount of heat is released into the oceans, as the molten magma cools and becomes solid.

1 km ^ 3 magma will warm ~ 1500 km ^ 3 water 1K when cooling down to deep ocean water temperatures so it takes roughly 1 million km ^ 3 magma to warm all ocean water 1K.