K-Pg Extinction Theories

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tjulien
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I'm doing an EPQ at school on the different theories for the K-Pg extinction and was wondering what different theories are out there. I know about the mains ones such as the asteroid impact and volcanism theories but i'd like to know about some of the less well known ones. So if anyone has any along with any evidence/info i'd be very grateful!!

Thankyou :-)
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Plagioclase
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(Original post by tjulien)
I'm doing an EPQ at school on the different theories for the K-Pg extinction and was wondering what different theories are out there. I know about the mains ones such as the asteroid impact and volcanism theories but i'd like to know about some of the less well known ones. So if anyone has any along with any evidence/info i'd be very grateful!!

Thankyou :-)
The Impactor and Volcanism theories are the two main theories and as far as I'm aware, they're the only theories taken particularly seriously in mainstream geoscience. One thing you may be interested in exploring is the possible link between the two because there was a paper published a few years ago in Science that suggested the Chicxulub impact may have triggered a change in the style of volcanism in the Deccan Traps (I know at least one academic who doesn't think very highly of that paper but it's an interesting idea nonetheless).

I'd be wary of spending too much time worrying about other theories because as I say, these are the only theories which are taken particularly seriously within the geoscience community and there is plenty to write about them. Nonetheless, the Wikipedia article for the K-Pg has references (with links) to other hypotheses for the extinction event.
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