Abstract:The East Pilbara Craton is a classic example of a dome-andkeel granite-greenstone terrain. As these rocks are among the oldest on Earth, their origin is fundamentally important for understanding how the earliest continents formed. One theory is that dome-and-keel structures are the result of a buoyancy-driven crustal overturn process which predated mobile-lid tectonics on Earth. We address this problem with five well-preserved metarhyolitic rocks collected from the Warrawoona Greenstone Belt in the East Pilbar… Show more
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