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EarthResources - Energy Mineral Resources Resources"things...

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Energy & Mineral Resources Resources – “things that have utility” Types of material resources • agricultural – food and clothing • forest – food, wood and fiber • Earth materials – everything else! Mineral resources – “ non-renewable Mineral resources mantra: “there is only one crop and only one harvest” “if it can ! t be grown, then it must be mined / extracted from the Earth”
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Introduction to Earth Resources • Formation of Earth resources is a fundamental aspect of specific geologic processes and environments, i.e. resources occur in rocks that formed under certain conditions – can be used in a predictive manner to locate supplies to meet global resource needs. • (Mineral / Earth) Resources – economic definition • Value – what is something worth? Unit Value – $ per barrel / ton / pound / kg / g / ct / etc. Place Value – Philosophical Value?
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Types of Earth/Mineral Resources Energy resources – petroleum, coal, uranium, etc. Metallic resources – • abundant (>0.1% ave crustal abundance) • scarce (<0.1%) metals Industrial (non-metallic) mineral resources – chemical, construction, soils, water, etc.
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“ Resources – if they don’t grow, then they have to be mined” (extracted from the Earth) Consumers - petroleum - metal (wire, steel, etc) - glass - plastics (chemical) - electronic components - etc, etc, etc.
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Everything is made of something (and typically many things)! . . . a cell phone, iPod, auto, airplane, etc.
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Resources and Society • 6+ billion people on Earth; likely 10-12 billion by 2100! 20th century annual global pop growth = 1.3%; if rate is 50% reduced for 21st century = 11.5 billion! • increasingly urban societies % of population estimated to live in >100,000 cities: 1800 AD 1.7% 1900 5.5 1950 13.1 1970 24.0 2010 50+% 1950 – 1 city >10 m 2015 – 21 >10 m 37 (5 to 10 m) enormous demand on materials for infrastructure
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Resources and Society Enormous demand on materials for infrastructure
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Resources and Society Per Capita Consumption of Mineral Resources by Industrialized countries – U.S. example
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Resources and Society
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MINERAL RESOURCES energy = “the ability to do work”
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. . . where global society finds itself • 80+% of global energy is supplied from fossil fuels • most energy consumption is as electricity (~ all except oil)
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CONSUMPTION OF FOSSIL FUELS (oxidizes C) Conversion of energy stored in fossil fuels, whether as coal-burning electricity- generating plants, liquid fuels for transportation, or natural gas for heating,
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