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Ch09clickerquestions

Ch09clickerquestions - How many of the following statements...

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1. The law of superposition applies to all types of rocks 2. Younger features cut across older features 3. A dike is always older that the rock it intrudes 4. In general, in undeformed sedimentary rocks, older rocks are overlain by younger rocks How many of the following statements are true?
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1. less than 1 2. more than 3 3. between 1 and 2 4. between 2 and 3 The ratio of parent to daughter isotopes in a radioactive decay process is 0.40. How many half-lives have elapsed since the material was 100% parent atoms?
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1. inclusions of sandstone in a granite pluton 2. a well-exposed dike of basalt in sandstone 3. the feldspar and quartz contents of a granite 4. an unconformity between a granite and sandstone Which of the following geologic observations would not bear directly on working out the sequence of geologic events in an area?
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1. The organism lived only in specific environments such as beaches or estuaries. 2. The organism only lived for a short period of geologic time.
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