Geology and Mineral Resources Quiz

Which of the following is a typical example of a metallic mineral resource?

• Sand

• Platinum

• Talc

• Sulfur

Why is extracting gold from rocks in the Earth's crust not always economical?

• Gold is usually found in low concentrations.

• Gold is only found in remote areas.

• The extraction process is too simple.

• Gold does not naturally occur in rocks.

What geologic process can concentrate minerals within an igneous body?

• Evaporation

• Metamorphism

• Crystal fractionation

• Laterization

Which type of ore deposit is formed when magma cools and minerals settle at the lower portion of the magma chamber?

• Sedimentary Ore Deposit

• Residual Ore Deposit

• Magmatic Ore Deposit

• Hydrothermal Ore Deposit

During fractional crystallization, what elements are concentrated in the remaining melt?

• Light gases such as hydrogen and helium

• Heavy metals like lithium and uranium

• Basic elements like carbon and nitrogen

• Organic substances

What is the main feature of hydrothermal ore deposits?

• Concentration of minerals through evaporation in arid regions

• Deposition of minerals from hot, metal-rich fluids in fractures

• Accumulation of minerals due to volcanic eruptions

• Chemical weathering of surface rocks

Which type of hydrothermal deposit is commonly found in fault or fissure zones within country rock?

• Disseminated Deposits

• Vein-Type Deposits

• Placer Deposits

• Residual Deposits

Massive sulfide deposits are usually associated with what geological setting?

• Mountain ranges

• Oceanic spreading centers

• Tropical rainforests

• Deserts

How are evaporite deposits typically formed?

• Through the weathering of metamorphic rocks

• By the accumulation of organic matter in swamps

• From the evaporation of water in a closed marine environment

• Through volcanic activity

Which type of ore deposit involves chemical precipitation from lake or sea water?

• Iron Formations

• Placer Ore Deposits

• Residual Ore Deposits

• Magmatic Ore Deposits