Combined observations of this type have led to the development of the geomagnetic polarity time scale GPTS Figure 6b. Age dating. Fossil species that are used to distinguish one layer from another are called index fossils. The relative dating is the technique to ascertain the age of the artifacts, rocks or even sites while comparing one from the other. Because they are often rare, primate fossils are not usually good index fossils. Visual Browse Close.
Difference Between Relative Dating vs. Absolute Dating
Overview and Key Difference 2.
Interval of time when the earth's magnetic field is oriented so that magnetic north pole is approximately in the same positions as the geographic south pole. The layers of rock at the base of the canyon were deposited first, and are thus older than the layers of rock exposed at the top principle of superposition. The study of strata and their relationships thermoluminescence: As the word relative tells that defining the object with respect to the other object, it will be pertinent to mention here that actual numerical dates of the rocks or sites are not known in this type of dating.