In the last ~20 years, we have seen a significant expansion of techniques related to geochemical and isotopic microsampling of materials in the earth sciences. From constraining pre-eruptive histories of flood basalt magmas to identifying the natal rivers of origin of anadromous fishes, these techniques have had significant impacts in a wide variety of scientific fields. Nowhere has the impact been greater than in identifying the sources, processes, and timing of processes involved in igneous magmatic systems. Both technique refinements and the development of new technologies have aided in advancing microsampling applications, thus allowing for a better understanding of the...

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