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All work is due on April 12!
Class Schedule:
- Tues 4/5: class
- Thurs 4/7: no class
Rocks and Minerals
Outline
- Introduction to today's lecture
- How do we know the Earth's age?
- The Earth's internal structure
- Rocks and Minerals
- Three types of rock
- More about igneous rocks
- Powerpoint
lecture notes
- Outline
- Basic Concepts
- Geologic Time1
- Geologic Time2
- An Illustration of Geologic Time
- Geologic Time Simplified -We covered up to this point in class-
- How do we know the Earth's age?
- The Earth's internal structure
- Rocks and Minerals
- Three types of Rock
- Igneous Rock
So, what are rocks and minerals? Minerals are Earth materials that tend to have a simple, homogeneous chemical make up. In other words, they are (mostly) made up of just one chemical compound. They tend to form crystals. Rocks are mixtures of minerals. You can think of a Rock as a soup, and the minerals are the ingredients. Or perhaps you can come up with a better analogy on your own.
Examples of Minerals:
- Diamonds
- Metals: Iron, Gold, Silver
- Quartz
Examples of Rocks:
- Granite
- Sandstone
- Marble
A picture of a rock (granite), which is made up of several minerals.
Next up: Three types of rock