Which kinds of quartz crystals are preferred for using 40Ar/39Ar dating method?

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E. Yalçın Ersoy

Dear Ovissi,

Q can not be used for such dating. You should look for K-bearing phases such as amphobiles, feldispars or micas.

Regards.

Masoud Ovissi

Dear Sirs,

Thanks for your comments. In some papers some researchers use Ar gas expelled from Fluid Inclusions by crushing the crystal for using 40Ar/39Ar method for dating. I have attached some papers regarding this issue. I'm waiting for your response.

Best Wishes,