The shape and style of an artefact changes through time although its function may remain the same.The changing styles of pottery, glass, stoneware, and metal objects provide archaeology analysts with known progressive sequences.Landslides and slips can completely change the topography of an entire archaeology site burying what was once on top by that which is much older, hence reversing the strata layers.A more precise and accurate archaeology dating system is known as absolute dating and can in most circumstances provide a calendar year to the object.
There are relatively few dating laboratories and having an artefact dated can be an expensive exercise especially if the artefact is not of great value itself. Once an artefact is compared to its known development date then whenever that item reappears in the archaeological record, of that or any other site, it can quickly be dated.The potential flaws in relative dating in archaeology are obvious.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. What is that type of dating called and do you know who does it?
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