Fluourine dating

It sublimes (changes from a solid to a gaseous state while bypassing a liquid form) easily and gives off a purple vapor.Although it is technically a non-metal, it exhibits some metallic qualities.Wind and water erode strata and some areas are uplifted or even tilted.These processes result in All of these processes confuse the stratigraphic record.Fluorine dating is a method that measures the amount of fluoride absorbed by bones in order to determine their relative age.

Methods and improvements are proposed in order to make chemical analysis and chemical dating of bone as reliable as possible.The term halogen means "salt-producing." When these elements react with metals, they produce a wide variety of salts, such as calcium fluoride, sodium chloride (common table salt), silver bromide and potassium iodide.Iodine is the least reactive of the halogens as well as the most electropositive, meaning it tends to lose electrons and form positive ions during chemical reactions.Fluorine dating provides only a relative date for bone, revealing whether specimens are older or younger than one another or if they are of the same age (Berger and Protsch, ).Fluorine dating relies on the discovery that bone mineral, calcium hydroxyapatite, will absorb fluoride ions if, during burial, it is exposed to groundwater that contains fluoride.

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