Pipestem dating formula
Specific changes in its amino acid structure (racemization or epimerization) which occur at a slow, relatively uniform rate, are measured after the organism's death.
places where people lived in the past; best place to study households (Household archaeology): found everywhere; smallest and most common social component of substance and most abundant; can directly observe adaptation to surrounding environment.
One way ceramics are used to calculate the average date of a site’s occupation is to find a mean of all the midpoints of the periods of manufacture for the excavated ceramic sherds.
The midpoints are weighted by the frequency of sherds of different types.
Pipe stem dating You have recovered sixty-three pipe stem fragments from Verysignificantsite. Harrington's initial studies, the time periods and average bore diameters are as follows (Deetz 19): Look at the number of stems you recovered and determine which bore diameter is represented by the most pipe stems.
You wish to analyze these pipe stems to determine when your site was most heavily occupied. Match the most frequently occurring diameter with Harrington's bore diameter chart above.
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SYNONYMS OR RELATED TERMS: amino-acid dating; aminostratigraphy; amino-acid racemization, amino acid racemization CATEGORY: technique DEFINITION: A method of absolute (chronometric) dating which is hoped to fill the gap between radiocarbon dates and potassium-argon dates.