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12 Cards in this Set
- Front
- Back
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What are the four fundamental components that make up sedimentary rocks?
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1. Framework Grains
2. Matrix Grains 3. Cement 4. Pores |
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What are rock pores?
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rock voids including the fluids (& gases) contained within
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Which of the four fundamental components that make up sedimentary rocks is capable of supporting lithostatic load?
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framework grains
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Can matrix grains support lithostatic load?
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no, matrix grains are generally not capable of supporting lithostatic load
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What is rock cement?
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minerals precipitated in "rock voids"?
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What are the different geologic time designations, largest to smallest?
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eon -> era -> period -> epoch
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What are the different rock designations names for each geologic time designation?
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eon = none
era = erathem period = system epoch = series |
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What are the 4 eons, oldest to youngest?
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Hadean, Archean, Proterozoic, Phanerozoic
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What are the 3 eras, oldest to youngest?
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Paleozoic, Mesozoic, Cenozoic
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Why is quartz more abundant in the average sandstone?
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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 4. |
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What are the four main types of physical weathering in order of most important to least?
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1. Stress Release
2. Organic Activity (Post Silurian) 3. Insolation 4. Freeze-Thaw |
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What are the four types of chemical weathering?
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1. Simple Solution
2. Hydration and Dehydration 3. Hydrolysis 4. Oxidation and Reduction |
