KerrMetric
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- Oct 2, 2005
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Thank you. I stand corrected. (There's a reason why I'm more into biochem than physics, much to my father's chagrin.)
Actually you did hit on another problem in your earlier post and it has to do with my comment about poor sample choice.
Dating volcanic materials is not a trivial task. The magma process resets the clocks of most minerals in the rock but various minerals crystallise in the parent magma at different times. Also some minerals are not reset at all and their crystals can give far older ages from when those crystals were originally formed - these are termed xenocysts or even xenoliths for foreign rock mixed in thre.
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