Pilbara Craton
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The Pilbara Craton is one of only two unntouched Archaean 3.8–2.7 Ga (billion years ago) crusts identified on the Earth.[1]
The other is the Kaapvaal Craton in South Africa. The youngest rocks are 1.7 Ga old in the historic area assigned to the Craton.[2] Both locations may have once been part of the Vaalbara supercontinent or the continent of Ur.
Pilbara Craton Media
Apex Chert The Apex Chert is a flint-like rock from western Australia, which contains some of the oldest known fossils. The microscopic fossils are single-celled bacteria, 3,500 million years old, and contain no nucleus (prokaryotes).
