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Small Metamorphic Rock Flotation Method

2018-08-28 1. Select a fresh unweathered rock sample.: 2. Crush the rock and separate the Rb-bearing minerals.: 3. Analyze the isotopic compositions of the whole rock and mineral separates on a mass spectrometer.: 4. Prepare an isochron diagram to calculate a date.Understanding the isochron diagram is the key to determining the age of a rock using the Rb-Sr method.

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