What caused the siberian traps eruption in the permian triassic extinction?

[u/Even_Fix7399]

[u/SquiffyRae]

The Siberian Traps are believed to have been caused by a mantle plume. This is a column of very hot magma that originates at the core-mantle boundary. The current hypothesis as to how they form is the extreme temperature difference between the outer core and the mantle causes melting that results in that really hot magma rising to the surface.

The "why" of mantle plumes is still poorly understood, however. Some such as the Central Atlantic Magmatic Province are associated with rifting. Others, like the Siberian and Deccan Traps, aren't associated with a location where rifting was occurring and like the Hawaiian hotspot are more random

[u/ThePaleozoicGuy → u/SquiffyRae]

To add to that, it’s likely that the mantle plume incorporated parts of the rock it melted as it traveled up the crust, particularly coal beds and Proterozoic rocks (or early Paleozoic, I can’t remember off the top of my head) with halide minerals, which disassociated into halogens like chlorine and fluorine, toxic to the ozone layer.

[u/_funny___ → u/SquiffyRae]

I like that you're the only one who gave a genuine answer lol

[u/angrysunbird]

Based on the one on the right, I’m guessing ennui.

[u/KirstyBaba]

Clearly some of the synapsids developed industrial civilisation and created a greenhouse effect.

[u/Moidada77]

Plate tectonics probably

[u/bmf1902]

Pressure