Tag Archives: Petaev et al (2013)

Platinum spikes extra-terrestrial impact as initiator of Younger Dryas

Decades passed between the first suggestion that the mass extinction at the Cretaceous-Palaeogene boundary was caused by an extra-terrestrial impact, and this hypothesis becoming accepted by most geologists as evidence — the global iridium anomaly, shocked quartz grains and tektite … Continue reading

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