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Not to get off topic but (some myth busting is in order) the updated theory is excessive volcanic activity had already been killing off the dinosaurs. The aster
by chiefalchemist 2y ago
Not to get off topic but (some myth busting is in order) the updated theory is excessive volcanic activity had already been killing off the dinosaurs. The asteroid wasn't the primary killer, but more like the last straw.
- Log_out_ 2y agowouldn't be volcanic activity be a consequence of a large enough impact, basically a waterhammer with magma?
- Ylpertnodi 2y agoAccording to today's www.farsidecomic.com/comic-collections/792/science-and-scientists-sept2024 there's the "Professor Ferrington and his controversial theory that dinosaurs were actually the discarded "chicken" bones of giant, alien picknickers." theory, that disproves [once and for all. Finally!!] that 'the' dinosaurs didn't exist.
- mikhailfranco 2y agoThere were several asteroid impacts at around the same time. For example, the Shiva impact off the west coast of India: https://en.wikipedia.org/wiki/Shiva_crater https://en.wikipedia.org/wiki/Shiva_crater The Deccan Traps basaltic flows also happened at 'the same' time, in the same place: https://en.wikipedia.org/wiki/Deccan_Traps https://en.wikipedia.org/wiki/Deccan_Traps It's not clear if the Shiva impact caused the volcanic activity, or it's just a remarkable coincidence.
- mikhailfranco 2y agoSo the Shiva 'crater' Structure may not be an impact, and the date for Shiva is taken directly from the Deccan Trap basalts, so not a remarkable coincidence, a fix.
- chiefalchemist 2y agoThis article I believe says otherwise. What's also great about this article is how it gives the rest of us a peek behind the curtain of science (and how emotional and unscientific it actually is). https://www.theatlantic.com/magazine/archive/2018/09/dinosaur-extinction-debate/565769/ https://www.theatlantic.com/magazine/archive/2018/09/dinosau...
- mikhailfranco 2y agohttps://web.archive.org/web/20180816030039/https://www.theatlantic.com/magazine/archive/2018/09/dinosaur-extinction-debate/565769/ https://web.archive.org/web/20180816030039/https://www.theat...
- karunamurti 2y ago> Shiva impact caused the volcanic activity Heh, if I remember my Godology, it's on par with what Shiva do.
- southernplaces7 2y agoYou should have noted that the Shiva crater is far from a certainty or even a firmly founded theoretical impact. Only a minority believe it to be a crater at all.
- mikhailfranco 2y agoLatest news about a contemporary (?) W. Africa crater: https://www.theguardian.com/science/2024/oct/03/asteroid-that-eradicated-dinosaurs-not-a-one-off-say-scientists https://www.theguardian.com/science/2024/oct/03/asteroid-tha... Some nice maps and seismic sections in the paper: https://www.science.org/doi/10.1126/sciadv.abn3096 https://www.science.org/doi/10.1126/sciadv.abn3096 It seems possible that the Nadir Crater (9.5N 17W) is 'half way' between Shiva (2.5S? 55E) and Chicxulub (21.5N 90W) with (+12N +72W) step between them - making some wild assumptions about Shiva's location 65m years ago, when India was near the Reunion Hotspot: https://socratic.org/questions/where-was-india-65-million-years-ago https://socratic.org/questions/where-was-india-65-million-ye... So one asteroid splitting into 3+ pieces, of different sizes, but roughly the equal separation? Like Shoemaker-Levy 9? https://en.wikipedia.org/wiki/Comet_Shoemaker%E2%80%93Levy_9 https://en.wikipedia.org/wiki/Comet_Shoemaker%E2%80%93Levy_9