Describe how deposits of gold and copper are formed.

Gold are formed in the

Part of the Gold exhibition. Gold may occur as deposits called lodes, or veins, in fractured rock. It may also be dispersed within Earth's crust. Most lode deposits form when heated fluids circulate through gold-bearing rocks, picking up gold and concentrating it in new locations in the crust.

Explanation:

Copper formed in the

Most nonrecycled supplies come from porphyry copper deposits (PCDs), which form when hot, metal-bearing fluids percolate up through Earth's crust. ... These fluids bubble up through the crust and collect in pores in the rock, where they sit, waiting for the final step that will allow them to form copper minerals.Jun 7, 2015

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