Monazite dating methods

The age is calculated using macros which iterate the age equations until a solution is reached to 0. Most other geochronometers usually have a much lower closure temperature. All three minerals preferentially fractionate Y, yet they form and break down at different stage of metamorphism. Monazite may be present as elongate grains aligned in foliation. If all Pb are suddenly removed from monazite by a geological event replacing batterythe age become zero

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However, it can also be interpreted that the monazite grew along the foliation of other minerals long after the shearing.

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Monazite geochronology

The Rocky Mountain Region: Monazite analysis; from sample preparation to microprobe age dating and REE quantification. For example, considering a closed system, Th is preferentially incorporated into the monazite mineral structure, leaving Th-depleted melt. The ablated particles are collected and incorporated into a carrier gas. Monazite along exiting foliation would have a tendency to grow at the two ends along the foliation. The secondary ions liberated from the mineral are accelerated, analysed and measured in the mass spectrometer. By using this site, you agree to the Terms of Use and Privacy Policy.

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