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12 Cards in this Set

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  • Back
What are the four fundamental components that make up sedimentary rocks?
1. Framework Grains
2. Matrix Grains
3. Cement
4. Pores
What are rock pores?
rock voids including the fluids (& gases) contained within
Which of the four fundamental components that make up sedimentary rocks is capable of supporting lithostatic load?
framework grains
Can matrix grains support lithostatic load?
no, matrix grains are generally not capable of supporting lithostatic load
What is rock cement?
minerals precipitated in "rock voids"?
What are the different geologic time designations, largest to smallest?
eon -> era -> period -> epoch
What are the different rock designations names for each geologic time designation?
eon = none
era = erathem
period = system
epoch = series
What are the 4 eons, oldest to youngest?
Hadean, Archean, Proterozoic, Phanerozoic
What are the 3 eras, oldest to youngest?
Paleozoic, Mesozoic, Cenozoic
Why is quartz more abundant in the average sandstone?
1. quartz is chemically more stable that other minerals at Earth's surface P/T conditions

2. quartz is more resistant to abrasion than other minerals

3. quartz is more likely to be recycled as a consequence of #1 and #2

What are the four main types of physical weathering in order of most important to least?
1. Stress Release
2. Organic Activity (Post Silurian)
3. Insolation
4. Freeze-Thaw
What are the four types of chemical weathering?
1. Simple Solution
2. Hydration and Dehydration
3. Hydrolysis
4. Oxidation and Reduction