Geochronology and thermochronology by the [40]Ar/[39]Ar method

1. Historical introduction 2. Basis of the 40AR/39AR dating method 3. Technical aspects 4. 40AR/39AR data presentation and interpretation App.4.1 Isochron analysis 5. Diffusion theory and measurements: App.5.1 Derivation ofthe diffusion equation App.5.2 Separation of the variables solution for a plane sheet App.5.3 Translation to spherical coordinates App.5.4 Sample diffusion calculation 6. 40Ar/39Ar thermochronology App.6.1 Closure temperature of first-order loss 7. Application and case histories References