2006-12-27 16:17:11 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Magma is created by the melting of the plates. When the plates converge, one of the plates will subduct beneath the other. the heat generated from the core and given off by radioactive substances will melt the plate, thereby creating magma. However, if one side of the plates converge, then the other side must diverge. this divergence of plate cause magma to rise and solidify as the new crust, or ocean floor, as only oceanic plates are divergent plates. This results in an never ending process of construction and destruction of plates. So magma will never run out as long as the core stays heated.
2006-12-27 22:15:16 · answer #1 · answered by Liv 2 · 0⤊ 0⤋
Well - "never" is a very bad word to use...
But no, earth's magma will not run out. Even though volcanoes erupt molten lava, and then the lava cools and hardens, there is always new earth that is available to melt and become "magma" to replace the lost.
2006-12-28 00:20:56 · answer #2 · answered by Stacey G 2 · 2⤊ 0⤋
In theory, the earths core could eventually stabilize and cool. This would lead to an end to magma. But, you're talking about something not likely to happen for hundreds of thousands of years if at all.
2006-12-28 00:19:51 · answer #3 · answered by bionicbookworm 5 · 1⤊ 0⤋
In several millions or billions of years, the radioactive elements that keep the Earth's mantle and outer core liquid will run low and not be able to keep the temperature up. The magnetic field will dissolve and the Earth will freeze. This is what happened to Mars a couple billion years ago. We will not have to deal with that for a VERY long time.
So yes.
2006-12-28 12:58:36 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I don't think so. Because of the age of the Earth, wouldn't it have run out by now?
2006-12-28 00:19:00 · answer #5 · answered by Peanut Butter 5 · 0⤊ 0⤋
well... i suppose its possible.. but then again it could just be creating more magma down there somehow so who knows
2006-12-28 00:25:03 · answer #6 · answered by Dont get Infected 7 · 0⤊ 1⤋