Radiocarbon dating an archaeological perspective taylor stroomatlas online dating


11-Jul-2017 01:40

In other words, the samples are more likely to represent a primary context.).Occasionally, paleontologists find and identify phytoliths associated with extinct plant-eating animals (i.e. Findings such as these reveal useful information about the diet of these extinct animals, and also shed light on the evolutionary history of many different types of plants.These elements are present in the living cells in which the silica concretions form, so traces are retained in the phytoliths.Such immobilised elements, in particular carbon, are valuable in that they permit radiometric dating in reconstructing past vegetation patterns.

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This biological mechanism does not appear to be limited to specific plant structures, as some plants have been found with silica in their reproductive and sub-surface organs.

Conjoined phytoliths occur when conditions are particularly favourable for phytolith formation, such as on a silica rich substrate with high water availability Phytoliths are very robust, and are useful in archaeology because they can help to reconstruct the plants present at a site when the rest of the plant parts have been burned up or dissolved.



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