2007-09-06 22:08:42 · 6 answers · asked by jenna 1 in Science & Mathematics ➔ Earth Sciences & Geology
Iron, from measurements of the earth's density and magnetic field.
2007-09-06 22:18:16 · answer #1 · answered by hznfrst 6 · 0⤊ 2⤋
Considering that the whole Earth on average consists of the same mixture of stuff we see elsewhere in the solar system, the core must be iron metal along with some nickel. But it's less dense than pure iron, so about 10 percent of the core must be something lighter.
2007-09-07 05:23:41 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The Earths core is molten nickel-iron ( about 10 % nickel)
It is because of the spin of the molten core that we have such a strong magnet field around the Earth.
2007-09-07 08:30:33 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Inner core - probably iron nickel alloy.
If I remeber correctly two different types have been identified in meterotes (and presumably form much of the inner core of teh earth), kamecite, and taenite and have different proportions of iron and nickel.
2007-09-07 20:14:39 · answer #4 · answered by Andrew 5 · 1⤊ 0⤋
Nickel And Iron,That's what the "inner" core is made of
2007-09-07 07:07:54 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Silica
2007-09-07 05:17:16 · answer #6 · answered by Sandeep N 2 · 0⤊ 4⤋