Nonrenewable Resources: Study Guide
14-1 Notes
What are Mineral Resources? * Nonrenewable Resources: a concentration of naturally occurring material in or on the earth’s crust that can be extracted and processed at an affordable cost. Non-renewable resources are mineral and energy resources such as coal, oil, gold, and copper that take a long period of time to produce. * Metallic Mineral Resources – iron, copper, aluminum * Nonmetallic Mineral Resources – salt, gypsum, clay, sand, phosphates, water and soil. * Energy resource: coal, oil, natural gas and uranium * Identified Resources – deposits of a nonrenewable mineral resource that have a known location, quantity and quality based on direct geological evidence and measurements * Undiscovered Resources– …show more content…
* Hydrothermal Processes: most common way of mineral formation * A. Gaps in sea floor are formed by retreating tectonic plates * B. Water enters gaps and comes in contact with magma * C. Superheated water dissolves minerals from rock or magma * D. Metal bearing solutions cool to form hydrothermal ore deposits. * E. Black Smokers – upwelling magma solidifies. Miniature volcanoes shoot hot, black, mineral rich water through vents of solidified magma on the seafloor. Support chemosynthetic organisms. * Manganese Nodules (Pacific Ocean) – ore nodules crystallized from hot solutions arising from volcanic activity. Contain manganese, iron copper and nickel.
How do Ores and other Minerals Form from Sedimentary and Weathering Processes? * Sedimentary Processes – sediments settle and form ore deposits. * Placer Deposits – site of sediment deposition near bedrock or course gravel in streams * Precipitation: Water evaporates in the desert to form evaporate mineral deposits. (salt, borax, sodium carbonate) * Weathering – water dissolves soluble metal ions from soil and rock near earth’s surface. Ions of insoluble compounds are left in the soil to form residual deposits of metal ores such as iron and aluminum (bauxite
What are Mineral Resources? * Nonrenewable Resources: a concentration of naturally occurring material in or on the earth’s crust that can be extracted and processed at an affordable cost. Non-renewable resources are mineral and energy resources such as coal, oil, gold, and copper that take a long period of time to produce. * Metallic Mineral Resources – iron, copper, aluminum * Nonmetallic Mineral Resources – salt, gypsum, clay, sand, phosphates, water and soil. * Energy resource: coal, oil, natural gas and uranium * Identified Resources – deposits of a nonrenewable mineral resource that have a known location, quantity and quality based on direct geological evidence and measurements * Undiscovered Resources– …show more content…
* Hydrothermal Processes: most common way of mineral formation * A. Gaps in sea floor are formed by retreating tectonic plates * B. Water enters gaps and comes in contact with magma * C. Superheated water dissolves minerals from rock or magma * D. Metal bearing solutions cool to form hydrothermal ore deposits. * E. Black Smokers – upwelling magma solidifies. Miniature volcanoes shoot hot, black, mineral rich water through vents of solidified magma on the seafloor. Support chemosynthetic organisms. * Manganese Nodules (Pacific Ocean) – ore nodules crystallized from hot solutions arising from volcanic activity. Contain manganese, iron copper and nickel.
How do Ores and other Minerals Form from Sedimentary and Weathering Processes? * Sedimentary Processes – sediments settle and form ore deposits. * Placer Deposits – site of sediment deposition near bedrock or course gravel in streams * Precipitation: Water evaporates in the desert to form evaporate mineral deposits. (salt, borax, sodium carbonate) * Weathering – water dissolves soluble metal ions from soil and rock near earth’s surface. Ions of insoluble compounds are left in the soil to form residual deposits of metal ores such as iron and aluminum (bauxite