How are placer gold deposits formed?
Answer to relevant QuestionsWhy can’t common rock be mined for elements such as copper? That is, why must high-grade deposits be found?Why are phosphates an important nonmetallic mineral resource?What is a porphyry copper deposit?How is geophysics used in the search for mineral deposits?Which type of petroleum trap was most easily discovered in the early days of petroleum exploration? (See Fig. 7.3.)
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