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Dave M's avatar

Great work Ted. Reposting. Cheers

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Colin Anderson's avatar

Have a look at the Velkerri and Barney Creek shales, intracratonic basin preserved shales back closer to 2 billion years in age, and broadly correlative to the first significant oxygenation of the atmosphere. Literally the dawn of the modern earth to me.

As a shale...core looks like every other one you've seen less the trace fossils. Causes one to wonder whether the organic source is as well understood as we'd hope. This is pre type I or II, ancestral kerogen.

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