12
votes
Why is Earth's Core Iron?
I can only answer the question of why is it mostly iron. Not too sure of the magnetic properties of iron versus nickel.
As said in another answer, there is simply much more iron around than nickel. ...
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8
votes
Accepted
Is the iron on Earth's crust a leftover of the Iron catastrophe, or it was brought back by volcanoes?
Not all the iron sank to the core. Have a look at my answer to a previous question:
https://earthscience.stackexchange.com/a/7076/725
Your question is similar, but coming the other way. You're ...
- 23.1k
7
votes
Why is Earth's Core Iron?
The main reason that there is more iron than nickel in the Earth's core, and in the universe generally, is that Nickel-56 beta-decays to Iron-56 (via cobalt-56).
Much nickel-56 forms in Asymptotic ...
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6
votes
Which theory is stronger, that iron came from outside or was formed within earth?
Somewhat more from volcanic activity than meteor impacts, but both are important.
The Earth has an iron-nickel ($\ce{Fe}$-$\ce{Ni}$) core that originates from Earth's formation out of the collision ...
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5
votes
Accepted
Is there any iron ore in New Guinea?
The island of New Guinea is effectively divided into two entities, the country of Papua New Guinea occupies the eastern half and the Indonesian province of West New Guinea occupies the western half.
...
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3
votes
Accepted
Non-magnetic metal extracted from magnetite ore
First, let me start by saying that what you're doing is dangerous. You have no idea what's in the ore, whether it is volatile, if any vapour is toxic, etc. This is especially since the rocks contain ...
- 23.1k
3
votes
"Bohnerze" pisolitic ore in Switzerland
Bohnerz is the German word for "bean ore". Another translation is "nuggets".
You might like to try the Wangen Valley in Switzerland.
Pisolitic iron deposits consist of small ...
- 24.6k
2
votes
Mining iron or metals in nature
Get a book on extractive metallurgy. One thing strikes me is that "primitives'" were pretty sophisticated. Also their technology was developed over generations by many people. I think ...
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2
votes
Mining iron or metals in nature
I think the answer to your question is hidden in the question itself, let me explain...
Because technology and every innovation is the convergence of thinking of many people over the years, the fact ...
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