Supports· moderateYDIH-E012
Bunch et al. 2012: very high-temperature melt products
- what the source states
- Meltglass and related phases from boundary-age strata at sites in the Carolinas, Pennsylvania, and Venezuela were reported with mineralogy interpreted to require formation temperatures of roughly 1,730 to >2,200 °C, which the authors attributed to cosmic airbursts/impacts.
- what we infer
- Interesting mineralogy carrying an attribution it cannot support alone: extreme temperature narrows but does not name the heat source, and the materials' depositional age, in-situ context, and exclusion of mundane analogues (fulgurites, historical fires, industrial contamination) remain the unmet burden.
- limitations
- Proponent-team study, largely unreplicated independently.
- Temperature estimates depend on phase interpretations that have not had blinded confirmation.