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Old 04-14-2006, 12:49 PM   #107
Samuel Dravis
 
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Quote:
Originally Posted by ET Warrior
If you can find Zircon crystals then it's a very straightforward process of determining their age, because Zircon crystals from with absolutely no lead, only Uranium. There are some matters that can complicate it, but it is known if they happened.
That's cool; does it work by having a melting point lower than the surrounding rock?


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