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People jane austins guide to dating

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Dating methods stone tools

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The earliest stone toolmaking developed by at least 2.6 million years ago.The Early Stone Age includes the most basic stone toolkits made by early humans.In other words, artifacts found in the upper layers of a site will have been deposited more recently than those found in the lower layers.Cross-dating of sites, comparing geologic strata at one site with another location and extrapolating the relative ages in that manner, is still an important dating strategy used today, primarily when sites are far too old for absolute dates to have much meaning.Stratigraphy is the oldest of the relative dating methods that archaeologists use to date things.

The various methods of relative dating are; This method depends on the common observation that the height of the habitational area increases as the people continue to live at the same place.The deposit thus occurring forms layers depending on the nature of the material brought in by the people inhabiting the area.According to this method, the upper deposits are younger and the lower deposits are older.Basing on this principle, the cultural assemblages found in different layers can be assigned a chronological personality. In practice it is found that the mounds are disturbed9 by all sorts of pits and dumps.For example, if the cultural contents of the lower deposit are Mauryan in character, appropriately this deposit may be assigned a date between 400-200 B. Similarly, if the cultural equipment of the upper deposit are of the Sunga period, this deposit has to placed between 200-73 B. Quite often, the archaeologist decided the change of stratum on the basis of the feed of the deposit.The scholar most associated with the rules of stratigraphy (or law of superposition) is probably the geologist Charles Lyell.