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the claim
The first limestone was formed billions of years ago in early geological history
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
2 sources for · 0 against

Geological evidence confirms that limestone formations date far back into Precambrian and early geological history.

Evidence for · 2
Carbonate/evaporite deposition in the Late Precambrian — Early Cambrian Ara Formation of Southern Oman
1990 · cited by 54
Paper [0] describes Late Precambrian/Proterozoic carbonate and evaporite deposition in the Ara Formation, demonstrating that ancient limestone formation dates back billions or hundreds of millions of years into early geological history.
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The analysis

The retrieved papers include studies on Late Precambrian and Proterozoic carbonate sequences (such as the Ara Formation and Balwan Limestone) which confirm that limestone formation occurred billions to hundreds of millions of years ago during early geological history.

More for · 1
Stratigraphy and geochemistry of the Balwan Limestone, Vindhyan Supergroup, India: Evidence for the Bitter Springs δ13C anomaly
2018 · cited by 25
Paper [2] documents Late Tonian Precambrian marine successions including the Balwan Limestone, reinforcing the existence of ancient limestone formations from early geological epochs.
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first checked04 Aug 2026
judged → SUPPORTED · 8604 Aug 2026
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