Why Are Different Parts of a Continent Often Different Ages

question 82

Multiple Choice

Why are different parts of a continent often different ages?

• A) Different ages of terranes may be accreted onto continents, and newer-aged sedimentary rocks or volcanic rocks are deposited on top of older rocks.
• B) Different ages only mean that different radiometric isotopes have been used to date the different parts; rocks on one continent are the same age.
• C) Igneous, sedimentary, and metamorphic rocks were all created at different times, so these different types of rock yield the different ages.

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