trustme.bro/r/…
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the claim
Potassium-argon dating relies on measuring the ratio of radiogenic argon-40 to potassium-40 in minerals
the verdict
COMMON KNOWLEDGE
no citation needed for this one
refutedsupported
the weight of evidence
no sources on either side

Potassium-argon dating is a standard radiometric dating technique based on the radioactive decay of potassium-40 to argon-40, making its core definition common knowledge.

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The analysis

The claim states the fundamental definition and mechanism of potassium-argon (and 40Ar/39Ar) dating, which is a textbook scientific fact and common knowledge requiring no specific citation of papers to verify.

Everything we examined (12)
  1. A starting guide to root ecology: strengthening ecological concepts and standardising root classification, sampling, processing and trait measurements.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  2. Practical Guide to Measuring Wetland Carbon Pools and Fluxes.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  3. MALDI efficiency of metabolites quantitatively associated with their structural properties: a quantitative structure-property relationship (QSPR) approach.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  4. Incremental heating of Bishop Tuff sanidine reveals preeruptive radiogenic Ar and rapid remobilization from cold storage.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  5. Rubble pile asteroids are forever.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  6. <i>In Situ</i> Geochronology on Mars and the Development of Future Instrumentation.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  7. <i>Homo erectus</i> adapted to steppe-desert climate extremes one million years ago.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  8. The Boltysh impact structure: An early Danian impact event during recovery from the K-Pg mass extinction.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  9. The inheritance of a Mesozoic landscape in western Scandinavia.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. 40Ar/39Ar Geochronology of Supergene Processes in Ore Depositspeer-reviewedno side takennot shown: read and judged not to bear on this claim
  11. Pb-Pb Dating of Terrestrial and Extraterrestrial Samples Using Resonance Ionization Mass Spectrometry.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  12. Recent progress and future prospects of the early solar system chronology.peer-reviewedno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked05 Aug 2026
judged → COMMON KNOWLEDGE · 9505 Aug 2026
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