Radiometric dating uranium

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Other minerals sometimes used for uranium-lead dating include monazite, titanite and two other zirconium minerals, baddeleyite and zirconolite.However, zircon is so overwhelming a favorite that geologists often just refer to "zircon dating." But even the best geologic methods are imperfect.

Geologists assert that older dates are found deeper down in the geologic column, which they take as evidence that radiometric dating is giving true ages, since it is apparent that rocks that are deeper must be older.But now imagine that some geologic event disturbs things to make the lead escape.That would take the zircons on a straight line back to zero on the concordia diagram.Here I want to concentrate on another source of error, namely, processes that take place within magma chambers.To me it has been a real eye opener to see all the processes that are taking place and their potential influence on radiometric dating.

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