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originally posted by: schuyler
originally posted by: musicismagic
Amazing.
That may have caused the dinosaurs extinction after all.
Uh, no. That crater has been identified on the Yucatan Peninsula and happened 60 million years ago. It ended the Cretaceous Period and ushered in the Tertiary. The K/T boundary is made up of a layer of Iridium from that comet. The theory was originally proposed by a father son team named Luis and Walter Alvarez.
originally posted by: schuyler
originally posted by: musicismagic
Amazing.
That may have caused the dinosaurs extinction after all.
Uh, no. That crater has been identified on the Yucatan Peninsula and happened 60 million years ago. It ended the Cretaceous Period and ushered in the Tertiary. The K/T boundary is made up of a layer of Iridium from that comet. The theory was originally proposed by a father son team named Luis and Walter Alvarez.
originally posted by: schuyler
originally posted by: GreenGunther
Well this makes me feel better. Seems we aren't overdue for that major meteor strike after all.
We probably are. We live on a killer planet. Not only do we get hit on a regular basis by asteroids and comets, the planet itself is volcanically active enough to endanger all species It's become increasingly apparent that we have been knocked backwards at least once. I doubt we achieved cell phones and Rovers to Mars status in the past, but I wouldn't be surprised if we had a Renaissance level culture about 12000 BC or so. This fits well within the time frame of human evolution as we know it, so no aliens required. But until we get off this planet in a sustainable way, we are vulnerable.
@Graham__Hancock
Evidence strengthens for a massive cosmic impact during the Younger Dryas. This has profound implications for the possibility of a lost civilization of the Ice Age as I argue in Magicians of the Gods (2015) and America Before (2019).
"Because it is very well preserved, it points to a possibly very young age, as young as the onset of the Younger Dryas period (between 11,500 and 14,500 years ago)," said Silber. "Or alternatively, if old, it tells us about the erosional processes that might have taken place in that area."