Choose either a radiometric dating technique or an index (guide) fossil. Describe the elements used in the dating technique, the ages of rock for which it is useful and what rocks or minerals are involved. For the index fossil, describe the type of organism and the time period in which it lived (e.g. Cretaceous, 71-65 million years ago).

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Posted on May 23, 2016Author TutorCategories Question, Questions