All articles tagged with #shocked quartz
New evidence suggests that a comet explosion over Earth around 13,000 years ago caused the Younger Dryas cooling period, leading to mass extinctions and the disappearance of the Clovis culture, supported by impact markers like shocked quartz and nanodiamonds found at archaeological sites.
New research supports the Younger Dryas Impact hypothesis, suggesting a fragmented comet caused significant climatic changes and extinctions 12,800 years ago through airbursts. Evidence includes impact proxies like platinum and shocked quartz found in the eastern U.S., indicating high-pressure, high-temperature events. These findings suggest the comet's airbursts led to abrupt climate shifts and the extinction of megafauna, impacting human cultures like the Clovis.