Chlorine 36 dating method

Rated 3.85/5 based on 587 customer reviews

Potential complications include possible addition of stable Cl isotopes to the water by reactions with rocks, ion filtration (Phillips et al., 1986), or mixing with higher chloride waters.Such additions can substantially change the Cl/Cl ratios (Nimz, 1998).As a common disinfectant, it is used in swimming pools to keep them clean.In the upper atmosphere, chlorine atoms have been implicated in destruction of the ozone layer. It combines readily with nearly all other elements, although it is not as extremely reactive as fluorine.These properties have led to extensive use of Cl as a hydrological tracer (C1 can be used to date groundwater with subsurface residence times up to one million years, and also has a myriad of uses for tracing subsurface water at shorter time scales.

It also tasted metallic and stung the back of the throat and chest.The chloride anion is an extraordinarily stable ionic species.Chloride is the thermodynamically favoured form of the element under virtually all terrestrial aqueous conditions.The addition of Cl can be evaluated by measurement of the Cl and other ionic concentrations in the water, in-situ production can be estimated after a measurement of aquifer U and Th concentrations, and precipitation input values can be estimated using present-day local values.For the determination of water transit times between two sampling locations instead of the absolute age of the water, the value measured at the upgradient location is used as the input value.

Leave a Reply