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- Lesson 1
- Planet Earth
- Lesson 2
- The Ground We Stand Upon
- Lesson 3
- The Earth’s Surface
- Lesson 4
- Erosion / Deposition
- Lesson 5
- Sediments / Fossilization
- Lesson 6
- Volcanism / Deformation of rocks / Continents
- Lesson 7
- Metamorphism / Radioisotope Decay
- Lesson 8
- Ways to date the Earth
- Lesson 9
- Great geologic events of the past
- Lesson 10
- Questions people ask
The Geology Book
by Dr John D Morris
Metamorphism / Radioisotope Decay
The Geology Book
- heavy radioactive atoms
- radioisotope dating
- In your own words, describe the different ways metamorphic rocks are thought to form.
- What are unstable atoms called? What is the most well-know radioactive atom?
- Why can’t the process of carbon-dating be used to date most fossils?
- What is the difference between a parent isotope and a daughter isotope?
- What are three assumptions made when using radiometric dating to give an age of a rock?
- Heat and pressure recrystallizing the minerals in rock into new mineral combinations. Some believe it happened over long periods of time, others believe it happened over short periods of time.
- Radioactive; uranium
- The fossil must have once been living and must still contain carbon.
- The daughter isotope is formed from the decay of the parent isotope.
- Rate of decay has not changed; system has been closed from the beginning; there was no daughter material present in the beginning
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