Chapter 12- Geologic Time Quiz

If the relative age of two formations (with respect to one another) is known, then the numerical ages for each formation can be determinedFalse
Relative ages expressed on the geologic time scale primarily resulted from the study ofFossil content and spatial relationships among sedimentary rocks
Uniformitarianism is succinctly summarized by which phraseThe present is the key to the past
In an undisturbed sequence of sedimentary rocks, younger layers overlay older layers. This is the principle ofSuperposition
Precisely speaking, a measured radiometric age for a mineral crystal within an igneous rock denotes the amount of the time that has passed since theTemperature of the crystal became equal to the closure temperature for that material