Collisions with Comets

• There is evidence to suggest that the surface of some comets might contain carbon fullerenes filled with helium-3 and argon. There is also evidence indicating that the upper layer of the coma has temperatures of about 2.5 million degrees. This suggests that in the event of a collision with of the comet with something, these layers might mix producing a nuclear reaction.  That much seems obvious to me, but I have not seen any conjectures about the possibility. Hopefully, the Threat Assessment Board has had the National Labs look into it. The carbon fullerenes filled with helium-3 and argon could easily be send to the Labs to explore this. The telltale fullerenes containing helium and argon were extracted from sites in Japan, China and Hungary, where the sedimentary layer at the boundary between the Permian and Triassic periods had been exposed. They have been found all over the U.S.A. in the layer dating to 10,900 B.C. They were also found in the debris from the June 30, 1908 explosion in Tunguska, Siberia. The nanodiamonds encased in carbon do not come from the comet, but rather from tree sap that was vaporized in the oxygen free environment of the explosion.
• It has been theorized that 10,900 B.C. event broke up the ice sheet diverting runoff water flow north quickly cooling the oceans by switching of the north Atlantic drift current. In the Permian boundary event, it is theorized that this might have cracked the Earth’s crust causing continent wide volcanic eruptions cooling the Earth over a long period. Perhaps the rapid cooling prevented the total extinction of animals.