Ocean mineral resources Flashcards
1
Q
Why is sea floor mining good?
A
-boosts economy
-used in everyday items
-more conc in water so cheaper then mining on land
-creates employment
2
Q
Why is sea floor mining bad?
A
- dont know the impacts on eco-system
3
Q
What are polymetallic nodules?
A
-found at depths of 3.5-6km, scattered on sea bed
4
Q
What are cobalt rich ferromanganese?
A
formed by precipitation from sea water onto hard rock surfaces over millions of years.
They contain iron, manganese, colbalt and nickel
5
Q
What are seafloor massive sulfides?
A
Found in mid ocean ridges
6
Q
What are ferrous and non-ferrous minerals?
A
Ferrous= metals that contain iron and are magnetic, prone to rust eg-iron
Non-ferrous=metals that don’t contain iron and not magnetic eg- copper
