super volcanoe Toba

SUPERVOLCANOES A NEW DISCOVERY

SUPERVOLCANOES  A NEW DISCOVERY

You always thought that all volcanoes erupt when enough pressure builds in the chamber until it can’t hold anymore, and it blows, right? Wrong! New studies find that supervolcanoes, volcanoes that have massive eruptions and usually cause global consequences, tend to not follow the normal characteristics of volcanoes. Volcanoes are supposed to have internal swelling until eruption, but these super volcanoes erupt when the roof of the magma chamber snaps or cracks. Unlike smaller volcanoes the supervolcanoes are triggered by an external force instead of and internal one. Scientists hypothesis that because of the supervolcano’s massive amount of magma, it would take more than an internal amount of pressure to make it erupt, it would need an external force, which is stronger.  Their hypothosis proved correct.

It’s interesting that there was another force triggering the eruptions of volcanoes. We were taught there was just one force coming from the inside, and anytime we find our teachings were incorrect can be rather astonishing.  Additionally, when a new finding is discovered, such as a “supervolcano,” is very interesting after all, volcanoes have been studied for centuries.

The author of a recently written article on supervolcanos wrote, “ ‘Typically, when we think about how a volcanic eruption is triggered, we are taught that the pressure in the magma chamber increases until it causes an explosion and the volcano erupts,’ Author Gregg said. ‘This is the prevailing hypothesis for how eruptions are triggered. At supervolcanic sites, however, we don’t see a lot of evidence for pressurization. When I incorporated buoyancy into my numerical models, I couldn’t reproduce the 2014 studies’ ” (Liz Ahlberg 1). I found it very helpful that I could prove that what she was writing was true because it was backed by an expert.  …Although, I do wonder how much internal force one would need to push the magma out of a supervolcano, and if it’s plausible?

We were thought and taught that all volcanoes erupt when enough pressure builds in the chamber until it can’t hold anymore, and it blows, right? Wrong! New studies find that supervolcanoes, volcanoes that have massive eruptions and usually cause global consequences, tend to not follow the normal characteristics of volcanoes. Volcanoes are supposed to have internal swelling until eruption, but these super volcanoes erupt when the roof of the magma chamber snaps or cracks. Unlike smaller volcanoes the supervolcanoes are triggered by an external force instead of and internal one. Scientists hypothesis that because of the supervolcano massive amount of magma, it would take more than an internal amount of pressure to make it erupt, it would need an external force, which is stronger, how scientists discovered that supervolvanoes, or volcanoes that have giant eruptions causing some sort of effect on the earth, were not erupted by the force pushing the magma up, and out of the magma chamber, but actually by the magma chamber cracking, or collapsing.

Supervolcanoes are fascinating, not only because they are ancient, but the fact that after centuries, volcanoes are still being studied with new discoveries.