Isotope provenance

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[Technique]----Isotope provenance is a branch of geochronology in which isotopic systems are used as a proxy to infer the origin of eroded sediments. For provenance purpose, single-grain age dating is routinely used for assessing the provenance using multi-minerals dating approaches. Some of the most applied techniques are U-Pb dating of zircons, fission tracks analysis of zircon and apatite, 40Ar/39Ar dating of white mica, biotite, and(U-Th)/He on apatite and zircon. Generally, U-Pb dating is considered to constrain crystallization ages whereas the other techniques yield in most cases the cooling ages (Bernet and Spiegel, 2004).