Mineral security Flashcards
1
Q
What are the top producing copper countries
A
Chile, Peru , china , USA
2
Q
What type of rock are porphyry ore deposits found?
A
igneous
3
Q
What type of rock are strata bound deposits found?
A
Sedimentary
4
Q
How are porphyry ore deposits extracted?
A
As the plate subjects the upper mantle melts and liquid magma rises to the surface. Metals precipitate out of the hot liquid as it cools into the veins
5
Q
How are strata bound deposits extracted?
A
Mineral rich solutions infiltrate layers of sedimentary rocks. Copper then precipitates out of the rock
6
Q
How are massive sulphide deposits extracted?
A
Hydrothermal vents on the sea floor emit mineral rich solutions which are then deposited in nodules
