Most carbon spherules once attributed to a cosmic impact closely resemble tightly packed balls of fungus found in modern soils exposed to low-to-moderate heat during wildfires.
Sources
- Fungi, Feces Show Comet Didn't Kill Ice Age Mammals? (nationalgeographic.com)
- https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2010GL043345 (agupubs.onlinelibrary.wiley.com)
- https://cosmictusk.com/wp-content/uploads/The-Younger-Dryas-impact-hypothesis-A-requiem.pdf (cosmictusk.com)
- https://www.sciencedirect.com/science/article/pii/S0012825223001915 (sciencedirect.com)
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