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		dredmorbius on Aug 8, 2021 \| parent \| context \| favorite \| on: Does Oil Come from Dinosaurs? By chemical / geological processes, or as organic limestone (mostly shellfish / plankton skeleton) deposits?

pfdietz on Aug 8, 2021 [–]

Both? The calcium to make the limestone has to come from somewhere.

dredmorbius on Aug 9, 2021 | [–]

I'd consider that biological origin, if not primarily then through an obligate mechanism.

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