عمر الأرض، نظائر مشعة

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Keep going عمر الأرض، نظائر مشعة 02 يونيو 2013

تحتوي المعادن الصخرية طبيعياً على عناصر معينة دون غيرها. وعن طريق عملية اضمحلال النشاط الإشعاعي للنظير الإشعاعي الذي يحدث في الصخرة، يمك...

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