Sediment sorting and selective concentration of minerals via currents in a coastal environment that are mechanically concentrated by water are called
A) Hydrothermal deposits.
B) Ore deposits.
C) Placer deposits.
D) Metasomatic deposits.
Correct Answer:
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Q6: If demand forces metal prices up,all of
Q7: A rock or mineral from which a
Q8: The minimum concentration factor necessary for profitable
Q9: Conflict diamonds.
A) Are those mined in countries
Q10: An igneous rock from which larger,gem-quality diamonds
Q12: Reserves,by definition,must be all of the following
Q13: Oxygen,silicon and aluminum are the three most
Q14: Ore deposits of dense minerals concentrated by
Q15: Of which of the following does the
Q16: Dense minerals,like magnetite and native gold,may be
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