Simply assuming that an artefact is older because it was found at a lower depth in the record is only subjective science.There are many instances of deep holes being dug for rubbish pits or to locate well water that protrude into the record of older strata injecting more modern material as they are filled in over time.
The changing styles of pottery, glass, stoneware, and metal objects provide archaeology analysts with known progressive sequences.
When museums and collectors purchase archaeological items for their collections they enter an expensive and potentially deceptive commercial fine arts arena.
Healthy profits are to be made from illicitly plundered ancient sites or selling skillfully made forgeries.
Rocks, when formed by volcanic reaction or other cataclysmic event, contain a minute quantity of radioactive substance.
From the day of the rock's creation this radioactivity begins to deplete.