Start studying relative dating is called stratigraphy layers of absolute dating however, facts, faults, is older in a multi-layered cake. Geologists. Absolute dating is determined in a number of ways, that will not concern us in this lab. The second type of dating is called RELATIVE DATING. absolute dating is based on calculations of the age of rock strata based on half lives of minerals, relative dating is based on the assumed age of fossils found in the strata and the laws of super imposition. This lesson teaches students how we measure the age of rocks using relative and absolute dating. Students will learn about superposition.