In May of this year I asked myself what I would do during the summer. I had finished several major projects, the ICDP drilling program in the Barberton belt was at the stage where the core was being worked on by groups throughout the world and my yearly trip to South Africa was not needed. I was at a loose end. I had been becoming irritated by numerous references in the literature to intracrustal models for the formation of Archean granitoids, and perplexed by the recent swing to “preservationist” models that linked peaks in zircon ages to the supercontinent cycle....

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