We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.
Last full accuracy audit: 2026-08-28 · 10 entries checked · 15 flagged · 31 issues confirmed · 5 corrected · 26 still open
Cretaceous — The twofold division into Early and Late Cretaceous was not established by Conybeare and Phillips in 1822; it was formalized later, notably by Alcide d'Orbigny in the 1840s.
Cretaceous — The lower boundary of the Cretaceous is not officially undefined; the ICS lists the base as 145.0 ± 0.8 Ma as an agreed age, but the statement that it is 'officially considered approximately 145 Ma' is misleading because it is not a ratified GSSP.
Crust (geology) — The lunar crust thickness range is stated as 'Between about 20 and 120 km', but the commonly cited range is 30–100 km, with 120 km only in limited areas.
Crust (geology) — [contradicted] On Mars, the ancient highlands are thought to be possible primary crust, but the Martian meteorite ALH84001 is not considered a sample of primary crust :: The source states that 'The Martian meteorite ALH84001 might represent primary crust of Ma
Earth's crust — The claim that the crust is less than one percent of Earth's radius is factually incorrect; the crust's thickness (up to ~80 km) is about 1.25% of Earth's radius (~6,371 km).
Earth's crust — [contradicted] The crust makes up about 1.25% of Earth's radius, not less than one percent. :: The source says: 'comprising less than one percent of the planet's radius and volume.'
Granite — The LORE section states that granite consists mainly of feldspar, quartz, mica, and amphibole minerals, but amphibole is not a defining or essential constituent of granite; the standard IUGS classification lists essential minerals as quartz, alkali feldspar, a
Granite — [contradicted] Mica is a common but not essential mafic mineral :: Granite is composed mostly of quartz, alkali feldspar, mica and plagioclase
Gypsum — The claim that gypsum is the main constituent in blackboard or sidewalk chalk is inaccurate; modern blackboard chalk is typically made from calcium carbonate, not gypsum.
Gypsum — [contradicted] Gypsum is the main constituent in blackboard or sidewalk chalk :: Note: Modern blackboard or sidewalk chalk is typically made from calcium carbonate, not gypsum.
Earth's inner core — [contradicted] Adam Dziewonski and James Freeman Gilbert established that measurements of normal modes of vibration of Earth caused by large earthquakes were consistent with a liquid outer core :: The source states that 'Adam Dziewonski and James Freeman Gilbe
Earth's magnetic field — [contradicted] The North geomagnetic pole (on Ellesmere Island, Nunavut, Canada) actually represents the South pole of Earth's magnetic field. :: This claim is stated the same way in the source article, so it is not contradicted.
Geologic time scale — [contradicted] "The geologic time scale is a system for dividing Earth's 4.54 ± 0.05 billion-year history into standardized intervals" :: The source says 'a time span of about 4.54 ± 0.05 billion years' (referring to deep time) and 'Earth's 4.54 ± 0.05 billion
Geologic time scale — [contradicted] Largest unit: 'Eon (four formally defined: Hadean, Archean, Proterozoic, Phanerozoic)' :: The source states 'There are four formally defined eons: the Hadean, Archean, Proterozoic and Phanerozoic.' — no contradiction.
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