1. Chapter 11 Resources and Energy
Section 1
Mineral Resources
Notes 11-1

2. Mineral Resources
Nonrenewable resources: supply is limited and can not be replaced once used
Minerals
Coal
Oil
Natural gas
Metals (Au, Ag, Al)
Nonmetals (S, SiO2)

3. Mineral Resources
Renewable resources: can be replaced within a human lifetime or as they are used
Trees
Other plants
Hydropower (water)
Solar power (sun)
Wind power (wind)

4. Sites

5. Formation of Ores
Some metals are found in the earth as native elements
Gold, silver, copper
Most metals and nonmetals are found chemically combined with other minerals
Ore: deposits of minerals from which metals and nonmetals can be removed profitably
Iron (from magnetite and hematite)
Mercury (from cinnabar)
Aluminum (from bauxite)

6. Copper
Gold
Silver

7. Ores
Cinnabar (ore of mercury)
Bauxite (ore of aluminum)

8. Formation of Ores Ores can form a variety of ways
In magma, metallic minerals sink
Layers are made which make ore deposits in the magma
Chromium (Cr), Nickel (Ni), Lead (Pb)
Contact Metamorphism causes hot mineral solutions to spread through small cracks in the rock making veins
Minerals are deposited in the veins
Lode: large number of thick mineral veins

9. Chromium
Nickel
Zinc

10. Formation of Ores Water deposits
Native minerals are eroded out by moving water
Settle out at weak current spots in a river/stream
Deposits are called placer deposits
Inside curve of a river/stream
Pot holes down stream from a water fall

11. Formation of Ores Water deposits
Water dissolves minerals as it flows through cracks in rocks
New minerals precipitate out of solution and form veins of ore deposits
Ex: gold, tin, lead, copper and platinum

12. Galena
Ore of lead

13. Used of Mineral Resources
See page 197
Metallic ores can be used for beauty and rarity
Gold, platinum and silver used in jewelry
Nonmetallic minerals can be used in gemstones in jewelry
Quartz, rubies, sapphires, diamonds
Other nonmetallic minerals are used in building materials
Calcite and gypsum

14. Some Minerals Diamonds:
Gold
Diamonds:
Platinum

15. Mineral Conservation Minerals are being consumed at an alarming rate.
One source of mineral resources that has not be utilized is the ocean floor
They are hard to get to and remove
Conservation of mineral is one way to slow down the rate of consumption.
Recycle things made with nonrenewable minerals.
Use abundant or renewable resources instead
plastic

16. Sticky Notes Ch. 11 Key Terms Ch. 11 Due: Nov. 22
Homework
Sticky Notes Ch. 11
Key Terms Ch. 11
Due: Nov. 22