Pb and cs dating
Like the lighter members of the group, lead exhibits a tendency to bond to itself; it can form chains, rings, and polyhedral structures.
The overall result is that radium-226 is found at low and essentially unchanging levels in soils everywhere.
metal), if it is produced in soils close to the air-soil interface.
In a related article on geologic ages (Ages), we presented a chart with the various geologic eras and their ages.
In a separate article (Radiometric dating), we sketched in some technical detail how these dates are calculated using radiometric dating techniques.
The age of the sediment from a particular depth in the sediment column can then be inferred.
If modelling and interpretation are requested, the Pb-210 results will normally be modelled to obtain the best fit of the data, where possible.
Over time the uranium-238 very slowly decays into uranium-234 (half-life = 248,000 ).
Radium-226 in the soil exhibits the same level of radioactivity as uranium-238 from which it was originally derived, because of a natural phenomenon called secular equilibrium.
We have been providing radioisotope dating services for over 30 years and have dated cores from around the world (See the map below).Tags: Adult Dating, affair dating, sex dating