what do you know about the permian extinction event. the creataceous extinction was probably caused due to an asteroid. but what about the larger permian extinction?all views welcome.
Yes, I had heard of that evidence. However, I must say that before hearing about it, I had already assumed that there would be vulcanism associated with any major impact event. As a youngster, I used to walk along the banks of a certain river in the springtime, to watch the sheets of ice float down. I would sometimes throw large rocks at these sheets of ice. I noticed that, when the ice was struck by a rock, liquid water from underneath the sheet would shoot up through any holes in the ice. I am sure that in a similar fashion, when the frozen rock floating on the surface of our planet is struck with an impact of sufficient energy, liquid rock from underneath shoots up through the holes.Originally posted by I, Brian
The collision theory is the favourite - but it's very interesting to note that there's also a mass volcanic event at that time, in Siberia, when the Cretaceous extinction of 65Myrs ago also coincided with the eruption of the Deccan Traps in India.
In fact, I'm sure I just read of an entirely new proposed asteroid collision about 125 millions years after the Permian.