The main relative dating method is stratigraphy . Stratigraphy is the study of layers of rocks or the objects embedded within those layers. It is based on the assumption (which, except at unconformities , nearly always holds true) that deeper layers were deposited earlier, and thus are older than more shallow layers.

What dating uses stratigraphic method?

Stratigraphy is the oldest of the relative dating methods that archaeologists use to date things. Stratigraphy is based on the law of superposition--like a layer cake, the lowest layers must have been formed first.

Is stratigraphy an absolute dating method?

Dating techniques are procedures used by scientists to determine the age of a specimen. Relative dating methods tell only if one sample is older or younger than another; absolute dating methods provide a date in years. The main relative dating method is stratigraphy.