The topic of geologic time and techniques and tools to measure geologic time, including radiometric dating techniques.
This category is for the topic of geologic time and techniques and tools to measure geologic time.

Sites discussing the age of the earth from a Biblical perspective, including discussions of interpreting scientific observations to support the Genesis account of creation and earth history, do not belong here. Submit them to Society/Religion_and_Spirituality/Christianity/Perspectives/Origins_and_Creation