An aging Geodude…lemmy not gather much moss

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Cake day: June 22nd, 2023

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  • Probably still won’t work unless there is serious overpressure in the area from some dynamic loading in the mantle. First off, no part of the mantle is naturally fluid at depth. The closest is the asthenosphere, at around 200 to 400 kn depth. This is still solid, but more like a soft wax. That too, the material is made of peroxides and has a density of between 5 to 15 percent higher than the granitic crust at depth and limestone that makes up the shallower crust of Indiana. Thus, it would be analogous to a whole in a wooden plank floating on a sea of dense soft wax…the wax won’t likely push through.

    However, if you add water to the system while maintaining the heat, you can start to fluidize the gooey rock, and eventually it will reduce density enough to start creeping upwards. If you mix it deep enough and we’ll enough, you can start creating small steam bubbles within that will continue to grow as the rock ascends, further increasing the pressure (like a bubbly bottle of champagne). This will drive further upward pressures allowing for a surface eruption and formation of a volcano.

    Source: am geophysicist and play(work) on volcanoes…just not in Indiana