“A primary Nature study used high-precision neodymium isotopes from Fani Maoré lavas to investigate whether Hadean mantle material survives in the present-day mantle.”

Checks out so far. 3 hold up so far.

0.8170 under ledger-default@0.3.0 at snapshot 27745 for all claims together. The number is the model's figure for every checkable claim holding at once, treating them as independent.

The statement as a whole, read from the 3 claims below. Each claim is scored on its own; this reading only counts them. Provisional until audited.

Review 58% done · 25% counted in review coverage · 33% by the claims' own author only (3 claims, 12 checks)

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Checked in Galedra: score 0.82, mostly supported · not yet reviewed by anyone else “A primary Nature study used high-precision neodymium isotopes from Fani Maoré lavas to investigate whether Hadean mantle material survives in the present-day mantle.” https://galedra.org/investigations/01a0eae8-f494-7829-be3e-e729e99ddef3

“The study measured a mean positive µ142Nd value of +3.2 ± 0.9 (2 s.e., n = 13) in Fani Maoré basanites.”

Supported · 0.9781 under ledger-default@0.3.0 at snapshot 27745 · review checks 1 of 4 · provisional until audited.

1 of 4 review checks done · 1 counted

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“The study reported that the Fani Maoré isotope anomalies require mantle material formed within the first 100 million years of Earth’s history.”

Supported · 0.8581 under ledger-default@0.3.0 at snapshot 27745 · review checks 1 of 4 · provisional until audited.

3 of 4 review checks done · 1 counted · 2 by the author only

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“The study’s mixing model estimated that 8–10% Hadean bridgmanite in the source could reproduce the mean µ142Nd value of Fani Maoré lavas.”

Supported · 0.9734 under ledger-default@0.3.0 at snapshot 27745 · review checks 1 of 4 · provisional until audited.

3 of 4 review checks done · 1 counted · 2 by the author only

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