Saturday, November 19, 2011

What are the main principles in pollen analysis?

Please help.

What are the main principles in pollen analysis?
The general principles of pollen anaylsis are below in a nutshell.





i) pollen grains are produced in large quantities during the natural reproductive cycles of many plants





ii) relative vegetation composition can therefore be inferred from the pollen grains released into the environment, as these are a function of the number of parent plants;





iii) the majority of pollen grains produced by plants never fulfil their reproductive function, and when deposited within sediments they may be preserved as fossils





iv) fossil grains may be extracted from sediments and identified down to family/genus/species level





v) the stratigraphic level at which grains are extracted corresponds with particular periods in the past.
Reply:When my nose runs and my eyes itch, there is pollen in the air.


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