Low-temperature alteration of monazite: Fluid mediated coupled dissolution–precipitation, irradiation damage, and disturbance of the U–Pb and Th–Pb chronometers

Low-temperature alteration of monazite is documented in three centimeter-sized monazite crystals from Norway (Arendal), Madagascar (Ambato), and Sri Lanka. The three crystals have different chemical compositions, especially in their U, Th, Y and Pb contents and have 208Pb/232Th ages ranging from 491...

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