Dating Methods Essay Example for Free

geological dating Methods EssayFor example, pollen, bone, hair, parchment, wood, charcoal etc. 400-50000 years old. Principal that in all living things interact constantly with the ambience and we absorb Carbon 14, however at the point of death, living creatures stop absorbing ampere-second 14, and the carbon 14 is frozen. This carbon decays at a known, constant rate. AMS go out (Acceleration, Mass, spectrometry) Organic Materials From 400-70000 years old. Quicker results, oft more expensive. Also more accurate, less samples needed and less possibility of contamination. TREE-RING go out (DENDROCHRONOLOGY).Trees or all timber object made from trees. Counted by flavour at a cross section of the tree, looking at how many resounds, the ring on the inner most centre is the first growth, and the outside ring is the last. THERMOLUMINESCENCE Pottery Over 50000+ When deducing if an artefact is fake, they can turn to Thermo luminescence to deduce weather it is real. Other t ime, in the form of energy, electrons will be stored within it, and if you heat the object to 500 degrees.Celsius or more, and then in that respect is a flash of light which can be measured to see the age. POTASSIUM ARGON DATING Volcanic Rock Up to millions of years. One of the most useful for dating human evolution. Used to fight fossils. DNA TESTING Has no age limit, can be used as long as DNA is available. Shows the blueprint of an organism, is within all living or dead creatures. Useful in all matter to do with any remains, can tell us significant information. URANIUM SERIES DATING Roick including Calcium 50000 500000 years old Also useful for dating human evolution.