chapter 16: mineral resources and mining
DESCRIPTION
Chapter 16: Mineral Resources and Mining. Mr. Manskopf Notes also at http://www.manskopf.com. MAIN IDEA. Modern societies depend upon a large number of a variety of minerals. Mining of those minerals has a great impact on our environment. GOALS for Chapter 16 Notes . - PowerPoint PPT PresentationTRANSCRIPT
Chapter 16: Mineral Resources and MiningMr. ManskopfNotes also at
http://www.manskopf.com
MAIN IDEA
Modern societies depend upon a large number of a variety of
minerals. Mining of those minerals has a great impact on
our environment.
GOALS for Chapter 16 Notes
• Investigate what minerals are, why they are important.
• Describe how we find minerals in the ground and how we mine them.
• Analyze the environmental impact of mining.
Identifying Mineral Around You
• What are the walls made from?• What are the windows made from?• What is your desk made from?• What is this computer made from?• What is inside all those wires around the
room?• What is all of my jewelry made from?
MineralsMineral: a naturally occurring solid that has a fixed chemical make up and set propertiesNonrenewable!• Aluminum• Gold• Salt• Lead• Copper
Average US person in a lifetime
Ore Minerals
Ore Minerals: valuable and economically extractable
Gangue: no commercial value found in mineral “Waste Product”
Gold Ore
Copper Ore
Copper Mine in Arizona
Pure copper
Metallic vs. Nonmetallic
Metallic• Conduct electricity• Shiny• Opaque• Copper, lead, gold,
silver, nickel, titanium, iron
Nonmetallic• Good insulators• May be shiny or dull• May allow light to
pass• Salt, clay, gypsum,
silica, quartz,
Sand mine
Coal Mine
How do they form?• Magma cooling• Evaporation• Many other ways
The many ways they form…coal
How are they used? (cooper as example)
Copper Usage Worldwide
Where in the U.S. are they found?
How are they found?
How are they found?
Subsurface Mining
Ore usually found below 50 meters• More dangerous• Some mines 2-3 miles
deep• Lower impact at surface
Subsurface Mining
Subsurface Mining
Surface Mining
Ore deposits located close to surface• More land
impact• “safer”• More water
pollution
Surface Mining
Surface Mining
Environmental Impacts of Surface Mining
Smelting
Process by which ore is melted at high temperatures to remove impurities
Mineral Life Cycle
Environmental Impacts of Mining
Environmental Impacts of Mining: Air
Environmental Impacts of Mining: Water
Environmental Impacts of Mining: Wildlife
Environmental Impacts of Mining: Soil
Environmental Impacts of Mining: Subsidence
Environmental Impacts of Mining: Underground Fires
Mining LawsIn the U.S. there are several laws that impact mining• Clean Water Act• Clean Air Act• Endangered Species Act• Safe Drinking Water Act• Superfund (CERCLA)• Surface Mining Control
Reclamation Act
Reclamation
Process of restoring land to it original condition when mining is completed
Review Chapter 16 Mining and Minerals
• Investigate what minerals are, why they are important.
• Describe how we find minerals in the ground and how we mine them.
• Analyze the environmental impact of mining.
How can our actions lesson impacts like this?