Are we missing a good definition for absolute dating? Metamorphic Rocks in Geology: Figure 3: Lead Editor: Because, the unknown fossil, the red sponge, was found with the fossils in fossil assemblage B it also must have existed during the interval of time indicated by the red box.
Many scientists prefer the term calendar dating, as it implies that ages determined can be plotted on a calendar.
Some scientists prefer the terms chronometric or calendar datingas use of the word "absolute" implies an unwarranted certainty of accuracy. Paleomagnetism measures the ancient orientation of the Earth's magnetic field to help determine the age of rocks. Britannica does not currently have an article on this topic. What subject do you teach? Running Water in Geology: