Relative dating with stratigraphy is based on the principle of
Associations between objects are the basis for as well as in interpretation -- cultural connections, original function, etc.
Pottery and flint tools associated in a closed context would be grounds for linking them into an assemblage, possibly making the full of a group available.
The method is based on the assumption that typologies evolved at the same rate and in the same way over a wide area or alternatively on assumptions of diffusion.
Many of the chronologies constructed before the advent of showed some of the links established by cross-dating to be invalid, so the method has become somewhat discredited.
However, its use is still helpful where recognizable products of dateable manufacture are found in undated contexts with no possibility of using a technique.
So in the absence of geochronology, two cultural groups can only be proved contemporary by the discovery of links between them.
SYNONYMS OR RELATED TERMS: chronology CATEGORY: technique DEFINITION: The process by which an archaeologist determines dates for objects, deposits, buildings, etc., in an attempt to situate a given phenomenon in time.
Relative chronology is also based on the application of the principles of stratigraphy and .
The discovery of inscribed monuments and calendars associated with dated astronomical observations contributed to the development of an Egyptian chronology and it has served as a framework -- through CATEGORY: technique DEFINITION: The use of various methods, often multiple methods, to demonstrate the equivalency of stratigraphic units.
A type of cross-dating has always been used in geology and stratigraphical sequences are often correlated by the assemblages of fossils they contain; this is known as biostratigraphy.
The archaeological versions of cross-dating may have been developed directly out of the geological method and may have been based on a false analogy between biological fossils and archaeological artifacts.