How does gold get to the surface?

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Tags

1. #enough
2. #majority
3. #layer
4. #thick
5. #formation
6. #surface
7. #platinum
8. #metals
9. #during
10. #metre
11. #precious
12. #centre
13. #molten
14. #earth
15. #planet
16. #cover
17. #entire
18. #there