Geologic Map of the Pilbara Craton (IMAGE)

Harvard University

Geologic Map of the Pilbara Craton

Caption

A geologic map of the Pilbara Craton in Western Australia. The rocks exposed here range from 2.5 to 3.5 billion years ago, offering a uniquely well-preserved window into Earth's deep past. The authors of the study spent two field seasons in the Pilbara sampling lavas (shown in green shades) dated to 3.2 billion years ago. For scale, the image is about 500 kilometers across, covering approximately the same area as the state of Pennsylvania.

Credit

Alec Brenner, Harvard University. Map data from the Geological Survey of Western Australia.

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