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11.1 Mineral Resources

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Katelynn Dorn

on 30 October 2014

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Transcript of 11.1 Mineral Resources

Formation of Ores
Metals can be found as native or combined
Ores- deposits of minerals from which metals and nonmetals can be removed
example- Hg from cinnabar, Al from bauxite
Ores and Cooling Magma
Chromium, nickel, and lead ores form in cooling magma
minerals sink into the magma as it cools and hardens
Ores and Moving Water
Weathering rock releases fragments of metals
streams carry the fragments and deposit them on bottom of stream beds- placer deposits
water dissolves minerals, carries them, then evaporates (gold, tin, lead, copper, and platinum ores)
Ores and Contact Metamorphism
hot magma comes into contact with rock
can form copper, lead, and zinc ores
Hot mineral solutions sink into cracks in rocks- veins
lode- large # of thick mineral veins in a deposit
Mother lode
Assignment- 11.1 worksheet, article & questions
Mineral Resources
3000 minerals- nonrenewable resources
metals- gold, silver, aluminum
What are some properties of metals?
nonmetals- sulfur and quartz
renewable resources- water, air, and plants
Mineral Conservation
running out
deposit sources on ocean floor
preserve minerals through conservation
renewable resources- plastics
Mineral Resources
Chapter 11 Resources and Energy: Lesson 1
Uses of Mineral Resources

pg. 197 Table 11-1
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