Pollen dating archaeology
Palynology, or the study of pollen, is used to reconstruct ancient environments and document environmental changes that had significant impacts on past human societies.As the climate changes—growing warmer or colder, drier or wetter—so do the natural ranges of various plant species with specific temperature and precipitation requirements.At ARS Ltd we have considerable experience of pollen analysis and combining this information with archaeological data to provide a more thorough understanding of the past and answer questions that could not be tackled by archaeological data alone.Material such as cereal grains and weed seeds (plant macrofossils) are frequently found on archaeological sites.Aspartic acid is the compound most often used because it has a of 15,000-20,000 years and allows dates from 5,000-100,000 years to be calculated.
There are two basic types of dating methods, relative and absolute.
These remains can provide information on woodworking techniques, fuel procurement, fuel use, and past environmental conditions.
Charred wood remains are also the most common source of material used for radiocarbon dating.
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.
The basis for the technique is the fact that almost all amino acids change from optically active to optically passive compounds (racemize) over a period of time.