What does this research mean for the field?

Extreme and prolonged heating of continental soils during mega-impact events can reach lethal temperatures, contributing significantly to mass extinction events. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.CHALLENGES_CONSENSUS.

What question did this study set out to answer?

To explore extreme heating of continental soils during mega-impact events and its role in mass extinctions.

March 6, 2026Open Access

Extreme Mega-Heatwaves: Lethal Continental Soil Temperatures as a Primary Mechanism of Mass Extinction in Mega-Impact Events

Key Points

To explore extreme heating of continental soils during mega-impact events and its role in mass extinctions.
Utilized historical temperature data from deserts to establish baseline measurements.
Conducted comparisons with reconstructed Phanerozoic temperatures using clumped isotope methods.
Estimated soil temperatures at the Permian-Triassic boundary using the CFAB framework.
Estimated soil temperatures in arid regions reached 90-125°C during critical extinction events.
Found that extreme soil temperatures exceeded lethal thresholds for plants, contributing to mass extinctions.
Demonstrated that Pangea's configuration increased vulnerability to these temperature extremes.

Abstract

Mass extinction events have been predominantly attributed to atmospheric effects. This paper proposes an additional systematically overlooked mechanism: the extreme and prolonged heating of continental soils as a direct consequence of extraterrestrial mega-impacts, operating within the CFAB (Crust-Fracturing Antipodal Bullet) theoretical framework. Applying the physical principle of uniformitarianism, quantitative comparisons are established between modern temperatures measured in deserts (Death Valley: 93. 9°C verified NOAA/NPS; Lut Desert: 80. 8°C per Zhao et al. 2021, BAMS DOI: 10. 1175/BAMS-D-20-0325. 1) and reconstructed Phanerozoic temperatures, validated by clumped isotope measurements in PETM paleosols (35-41°C at depth). Soil temperatures in arid zones during the Permian-Triassic boundary (~252 Ma) are estimated to have potentially reached 90-125°C, far above lethal thresholds for any known plant system. The pole-to-pole Pangea configuration represented maximum possible vulnerability, explaining why that extinction eliminated 96% of marine species and 70% of terrestrial species. Suplemento to: Deep Impacts of Asteroids or Comets with Metallic Cores that Penetrate the Earth: https: //doi. org/10. 5281/zenodo. 18204600 The Origin of the Universe: https: //doi. org/10. 5281/zenodo. 17948685 https: //orcid. org/0009-0006-1089-9023. Contact: founder@humansp. org Part of the Proyecto A. D. A. (Architecture of Survival) series - Preprint 20. A chapter of: Survival Architecture: https: //play. google. com/store/books/details? id=epWgEQAAQBAJ Arquitectura de la supervivencia: https: //play. google. com/store/books/details/AlejandroD%C3%ADazAldanaArquitecturadeₗaSupervive? id=DpCgEQAAQBAJ

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