Browsing Geology by Author "Kenny, Gavin"
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The zircon record of the Sudbury impact crater and its implications for the early Earth
Kenny, Gavin (Trinity College (Dublin, Ireland). Department of Geology, 2016)In the absence of widespread rocks older than 4.0 Ga, the earliest terrestrial material and the only direct evidence for the nature of the Earth's very early crust are tiny zircon crystals. The chemical compositions of ...