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01-Oct-2019 10:00

However, there are a number of other factors that can affect the amount of carbon present in a sample and how that information is interpreted by archaeologists.

Thus a great deal of care is taken in securing and processing samples and multiple samples are often required if we want to be confident about assigning a date to a site, feature, or artifact (read more about the radiocarbon dating technique at:

Radiocarbon dating is especially good for determining the age of sites occupied within the last 26,000 years or so (but has the potential for sites over 50,000), can be used on carbon-based materials (organic or inorganic), and can be accurate to within ±30-50 years.

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Consider a lake that dries out or somehow contains older sediments that are washed into it.For example, rootlet intrusion, soil type (e.g., limestone carbonates), and handling of the specimens in the field or lab (e.g., accidental introduction of tobacco ash, hair, or fibers) can all potentially affect the age of a sample.

Makikita dito ang mga pinagmulan ng unibersidad, na itinayo sa isang patag na lupa na dating taniman ng palay, at aaralin ang pinakadahilan ng mga baha na ito.… continue reading »

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