25
votes
Accepted
Are metals and other elements in every continent?
Metals occur on every continent . The issue is whether or not they occur in sufficiently large deposits for them to be mined economically.
The difference between a mineral deposit and an ore body is ...
- 24.6k
22
votes
Accepted
Can living where (rare) earth magnetic ore is abundant provide any protection from cosmic radiation?
Absolutely not.
First of all, "rare earth magnet ore", meaning the ores of metals like neodymium (Nd) and samarium (Sm), is not magnetic at all. It only becomes a magnet once you make a ...
- 23.1k
16
votes
Are metals and other elements in every continent?
All stable elements (and the radioactive U and Th) exist everywhere on Earth. They're in the sand underneath your feet, they're in your bones, they're in the dust in the air, they're in the ocean. The ...
- 23.1k
11
votes
Can living where (rare) earth magnetic ore is abundant provide any protection from cosmic radiation?
No.
Cosmic radiation are high-energy particles that create particle showers high up in the terrestrial atmosphere. Those particle shower are heavily beamed downwards, and although in principle some ...
- 3,152
5
votes
Why were Fe-oxides not usually used for finding skarn Fe ore deposits in geochemical exploration?
Skarn is metamorphosed sedimentary rock, it's iron deposits are in the form of sulfides. This means two things;
There almost certainly will be iron oxide contamination throughout the unit, at least I ...
- 4,260
4
votes
Accepted
Why is there gold in the earth's crust?
Is it that "almost nothing" is not nothing?
It's obviously "almost nothing" because there still is gold in the Earth's crust. That said, while gold is 20 times more abundant in ...
- 23.1k
4
votes
how can a complete novice find ore?
how can a complete novice find ore?
You don't.
In addition to Fred's excellent answer regarding the legalities of the matter, I would add the following:
All of the easy stuff has already been found,...
- 23.1k
4
votes
Accepted
Where on Earth is the highest none polar magnetic fields?
In other words where might be a natural place on Earth that would over power a compass and then some
Just about anywhere where the rocks are rich in iron. This would occur near iron ore, basalt, ...
- 23.1k
4
votes
Are metals and other elements in every continent?
Part of the problem is in the question itself. In the title, you ask about "in every continent" while in the text, you imply that you are talking about smaller areas.
One premise we can ...
- 141
3
votes
Accepted
What ore minerals are likely to be found in a thin section like this? What can we deduce from the structure?
Sulfide ore petrography is reflected light is even harder than transmitted light. Unlike transmitted light, colour is actually a very important characteristic feature. But the perception of colour can ...
- 23.1k
3
votes
Is this platinum ore?
The rock you have is most likely not platinum ore. It appears to be sulfide ore most likely composed of galena, pyrite, and maybe copper sulfides such as bornite.
It is more likely that your ...
- 5,959
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
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
2
votes
Why is there gold in the earth's crust?
Assuming gold, a siderophile, is more abundant in the metallic core, this gold may still be dredged to the surface.
On Earth, there is more to tectonic activity than meets the eye. Hoggard et al. 1, ...
- 3,666
2
votes
Can living where (rare) earth magnetic ore is abundant provide any protection from cosmic radiation?
Magnetite is a type of iron ore and does not significantly affect the Earth's magnetic field. It would not protect you from cosmic radiation. However, cosmic radiation is more intense high in the ...
- 4,695
2
votes
Can living where (rare) earth magnetic ore is abundant provide any protection from cosmic radiation?
The magnetic field stops the charged particles mostly by trapping them along their fields lines (globally parallel to the ground at most latitudes, plunging to the ground near the poles (therefore ...
- 21
2
votes
Can living where (rare) earth magnetic ore is abundant provide any protection from cosmic radiation?
Although the other answers have correctly pointed out that this isn't a relevant thing on Earth, it should be mentioned that such an effect does occur on the Moon: it is the likely cause for the Lunar ...
- 817
1
vote
Why are metals so separated in the Earths crust?
There are active geological processes that lead to separation of mineral constituents. A source material that contains specific primary minerals, with some transport mechanism (eg convection or liquid ...
- 1,827
1
vote
how can a complete novice find ore?
This somewhat of a naive question.
Firstly what type of ore do you want: iron ore, gold, tin, nickel, copper, silver-lead-zinc, lithium, ... etc. Also, the difference between an ore deposit and a ...
- 24.6k
1
vote
What is cluster situation with respect to sand mining?
Cluster in this situation refers to a grouping or a number of mining operations within a giving area.
Sometimes deposits of minerals with sand deposits is such that a number of smaller deposits is ...
- 24.6k
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